diff --git a/.gitignore b/.gitignore
index b63da4551..665ed2698 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,4 +39,6 @@ bin/
 .vscode/
 
 ### Mac OS ###
-.DS_Store
\ No newline at end of file
+.DS_Store
+/.idea/uiDesigner.xml
+/.idea/kotlinc.xml
diff --git a/.idea/.gitignore b/.idea/.gitignore
index 26d33521a..4d2c8819f 100644
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@@ -1,3 +1,7 @@
 # Default ignored files
 /shelf/
 /workspace.xml
+/.name
+/.name
+/kotlinc.xml
+/uiDesigner.xml
diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 000000000..e886c3ac4
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+Cost-of-living-app
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 5404067d2..48d63ee03 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -4,8 +4,11 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="delegatedBuild" value="true" />
+        <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="16" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/kotlinc.xml b/.idea/kotlinc.xml
new file mode 100644
index 000000000..568bea16e
--- /dev/null
+++ b/.idea/kotlinc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.6.20" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 495e37055..8e001551d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_16" default="true" project-jdk-name="openjdk-16" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_16" default="true" project-jdk-name="16" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index f22bd8bb7..7d68b3d53 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -3,8 +3,10 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
     kotlin("jvm") version "1.6.20"
     application
+
 }
 
+
 group = "org.the-chance"
 version = "1.0-SNAPSHOT"
 
@@ -13,7 +15,11 @@ repositories {
 }
 
 dependencies {
+    implementation("junit:junit:4.13.1")
+    implementation("org.testng:testng:7.1.0")
     testImplementation(kotlin("test"))
+    testImplementation("org.junit.jupiter:junit-jupiter:5.8.1")
+    testImplementation("org.mockito:mockito-core:3.3.3")
 }
 
 tasks.test {
@@ -22,8 +28,10 @@ tasks.test {
 
 tasks.withType<KotlinCompile> {
     kotlinOptions.jvmTarget = "1.8"
+
 }
 
 application {
     mainClass.set("MainKt")
+
 }
\ No newline at end of file
diff --git a/src/main/kotlin/Main.kt b/src/main/kotlin/Main.kt
index c1caa623d..328d3a375 100644
--- a/src/main/kotlin/Main.kt
+++ b/src/main/kotlin/Main.kt
@@ -3,20 +3,54 @@ import dataSource.utils.CsvParser
 import interactor.CostOfLivingDataSource
 import interactor.GetCityHasCheapestInternetConnectionInteractor
 import interactor.GetHighestSalaryAverageCititesNamesInteractor
+import interactor.GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor
+import interactor.GetCitiesAndYearsToBuyApartmentInteractor
+import interactor.GetTopFashionCitiesInteractor
+import interactor.GetCitiesNamesSortedByCheapestBananaPricesInteractor
+import interactor.*
 
 fun main() {
     val csvParser = CsvParser()
     val dataSource: CostOfLivingDataSource = CsvDataSource(csvParser)
 
+    val getTopCountriesWithHighTaxOnCarbonatedDrinks= GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor(dataSource)
+    println(getTopCountriesWithHighTaxOnCarbonatedDrinks.execute(limit = 10))
+    printSeparationLine()
+
     val getHighestSalaryAverageCities = GetHighestSalaryAverageCititesNamesInteractor(dataSource)
     println(getHighestSalaryAverageCities.execute(limit = 10))
     printSeparationLine()
 
-    val getCityHasCheapestInternetConnectionInteractor = GetCityHasCheapestInternetConnectionInteractor(dataSource)
-    println(getCityHasCheapestInternetConnectionInteractor.execute())
+    val getTopFashionCities = GetTopFashionCitiesInteractor(dataSource)
+    println(getTopFashionCities.execute(limit = 5))
+    printSeparationLine()
+
+    val getCitiesNamesSortedByCheapestBananaPricesInteractor = GetCitiesNamesSortedByCheapestBananaPricesInteractor(dataSource)
+    println(getCitiesNamesSortedByCheapestBananaPricesInteractor.execute("Caracas","Accra","Giza"))
+    printSeparationLine()
+
+    val getCitiesAndYearsToBuyApartment = GetCitiesAndYearsToBuyApartmentInteractor(dataSource)
+    println(getCitiesAndYearsToBuyApartment.execute(limit = 10))
+    printSeparationLine()
+
+    val getCountryCitiesAverageSalary = GetCountryCitiesAverageSalaryInteractor(dataSource)
+    println(getCountryCitiesAverageSalary.execute("Syria"))
+    printSeparationLine()
+
+    val getLowCostFruitVegetableCitiesWithHighSalaries = GetLowCostFruitVegetableCitiesWithHighSalariesInteractor(dataSource)
+    println(getLowCostFruitVegetableCitiesWithHighSalaries.execute(10))
+    printSeparationLine()
+
+
+    val getCityHasCheapestInternetConnection = GetCityHasCheapestInternetConnectionInteractor(dataSource)
+    println(getCityHasCheapestInternetConnection.execute())
+    printSeparationLine()
+
+
 
 }
-private fun printSeparationLine(){
+
+private fun printSeparationLine() {
     print("\n_______________________________\n")
 }
 
diff --git a/src/main/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractor.kt b/src/main/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractor.kt
new file mode 100644
index 000000000..1b0f2ced6
--- /dev/null
+++ b/src/main/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractor.kt
@@ -0,0 +1,40 @@
+package interactor
+
+import interactor.util.Constants.ONE_HUNDRED_SQUARE_METER
+import interactor.util.Constants.TWELVE_MONTH
+import model.CityEntity
+import interactor.util.toFormat
+import interactor.util.toYear
+
+class GetCitiesAndYearsToBuyApartmentInteractor(
+    private val dataSource: CostOfLivingDataSource
+) {
+
+    fun execute(limit: Int): List<Pair<String, String>> {
+        return dataSource
+            .getAllCitiesData()
+            .filter(::excludeNullValueAndLowQualityData)
+            .sortedBy(::calculateYearsNeededToBuyApartment)
+            .take(limit)
+            .map { Pair(it.cityName, calculateYearsNeededToBuyApartment(it).toYear()) }
+    }
+
+
+    private fun excludeNullValueAndLowQualityData(city: CityEntity): Boolean {
+        return city.let {
+            it.dataQuality &&
+                    it.averageMonthlyNetSalaryAfterTax != null &&
+                    it.realEstatesPrices.pricePerSquareMeterToBuyApartmentOutsideOfCentre != null
+        }
+    }
+
+    private fun calculateYearsNeededToBuyApartment(city: CityEntity): Float {
+        return with(city) {
+            ((realEstatesPrices.pricePerSquareMeterToBuyApartmentOutsideOfCentre?.times(ONE_HUNDRED_SQUARE_METER))?.div(
+                (averageMonthlyNetSalaryAfterTax?.times(TWELVE_MONTH)!!)
+            ))?.toFormat() ?: 0f
+        }
+    }
+}
+
+
diff --git a/src/main/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractor.kt b/src/main/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractor.kt
new file mode 100644
index 000000000..e6961ec8f
--- /dev/null
+++ b/src/main/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractor.kt
@@ -0,0 +1,26 @@
+package interactor
+
+import model.CityEntity
+
+
+class GetCitiesNamesSortedByCheapestBananaPricesInteractor(
+    private val dataSource: CostOfLivingDataSource
+) {
+    fun execute(vararg cities: String): List<String> {
+        return dataSource
+            .getAllCitiesData()
+            .filter { excludeNullBananaPricesAndLowQualityData(it) }
+            .filter { compereCitiesNamesWithInputCities(cities, it.cityName) }
+            .sortedBy { it.fruitAndVegetablesPrices.banana1kg }
+            .map { it.cityName }
+    }
+
+    private fun compereCitiesNamesWithInputCities(inputCity: Array<out String>, city: String): Boolean {
+        return inputCity.map { it.toLowerCase().trim() }.contains(city.toLowerCase())
+    }
+
+    private fun excludeNullBananaPricesAndLowQualityData(city: CityEntity): Boolean {
+        return city.fruitAndVegetablesPrices.banana1kg != null
+    }
+
+}
diff --git a/src/main/kotlin/interactor/GetCountryCitiesAverageSalaryInteractor.kt b/src/main/kotlin/interactor/GetCountryCitiesAverageSalaryInteractor.kt
new file mode 100644
index 000000000..0f0fb6277
--- /dev/null
+++ b/src/main/kotlin/interactor/GetCountryCitiesAverageSalaryInteractor.kt
@@ -0,0 +1,29 @@
+package interactor
+
+import interactor.util.Constants.COUNTRY_WAS_NOT_FOUND
+import interactor.util.formatSentence
+import model.CityEntity
+
+class GetCountryCitiesAverageSalaryInteractor(
+    private val dataSource: CostOfLivingDataSource,
+) {
+
+    fun execute(country: String): List<Pair<String, Float>> {
+        val citiesSalaries = dataSource.getAllCitiesData()
+            .filter { searchCountry(it, country) && excludeNullSalariesAndLowQualityData(it) }
+            .map { Pair(it.cityName, it.averageMonthlyNetSalaryAfterTax!!) }
+        if (citiesSalaries.isEmpty()) throw Exception(COUNTRY_WAS_NOT_FOUND)
+
+        return citiesSalaries
+    }
+
+    private fun excludeNullSalariesAndLowQualityData(city: CityEntity): Boolean {
+        return city.averageMonthlyNetSalaryAfterTax != null && city.dataQuality
+    }
+
+    private fun searchCountry(city: CityEntity, country: String): Boolean {
+        return city.country.formatSentence() == country.formatSentence()
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/interactor/GetHighestSalaryAverageCititesNamesInteractor.kt b/src/main/kotlin/interactor/GetHighestSalaryAverageCititesNamesInteractor.kt
index 7680dfd95..b44f498a6 100644
--- a/src/main/kotlin/interactor/GetHighestSalaryAverageCititesNamesInteractor.kt
+++ b/src/main/kotlin/interactor/GetHighestSalaryAverageCititesNamesInteractor.kt
@@ -6,7 +6,7 @@ class GetHighestSalaryAverageCititesNamesInteractor(
     private val dataSource: CostOfLivingDataSource,
 ) {
 
-    fun execute(limit: Int): List<String> {
+    fun execute(limit: Int): List<String?> {
         return dataSource
             .getAllCitiesData()
             .filter(::excludeNullSalariesAndLowQualityData)
diff --git a/src/main/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractor.kt b/src/main/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractor.kt
new file mode 100644
index 000000000..1774e18d8
--- /dev/null
+++ b/src/main/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractor.kt
@@ -0,0 +1,35 @@
+package interactor
+
+import model.CityEntity
+import model.FruitAndVegetablesPrices
+
+
+
+class GetLowCostFruitVegetableCitiesWithHighSalariesInteractor(
+    private val dataSource: CostOfLivingDataSource
+) {
+
+    fun execute(limit: Int): List<String> {
+        return dataSource.getAllCitiesData()
+            .filter(::excludeNullSalariesAndNullFruitVegPrices)
+            .sortedBy { calculateFruitVegTotalPrice(it.fruitAndVegetablesPrices).div(it.averageMonthlyNetSalaryAfterTax!!) }
+            .takeUnless { limit<=0 || limit > it.count() }!!
+            .take(limit)
+            .map { it.cityName }
+    }
+    private fun excludeNullSalariesAndNullFruitVegPrices(city: CityEntity): Boolean {
+        return city.averageMonthlyNetSalaryAfterTax != null &&
+                with(city.fruitAndVegetablesPrices){
+                    this.apples1kg!= null && this.banana1kg!= null && this.lettuceOneHead!= null &&
+                    this.onion1kg!= null && this.oranges1kg!= null && this.potato1kg!= null &&
+                    this.tomato1kg!= null
+                }
+
+    }
+
+    private fun calculateFruitVegTotalPrice(fruitAndVegetablesPrices: FruitAndVegetablesPrices): Float =
+        with(fruitAndVegetablesPrices){
+                return this.apples1kg!! + this.banana1kg!!+ this.lettuceOneHead!!+ this.onion1kg!!+ this.oranges1kg!!+
+                   this.potato1kg!!+ this.tomato1kg!!
+        }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor.kt b/src/main/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor.kt
new file mode 100644
index 000000000..6970fdcd6
--- /dev/null
+++ b/src/main/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor.kt
@@ -0,0 +1,20 @@
+package interactor
+
+import model.CityEntity
+
+class GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor(
+    private val dataSource: CostOfLivingDataSource
+) {
+    fun execute(limit: Int): List<Pair<String, Float?>> {
+        return dataSource.getAllCitiesData()
+            .filter(::exceptionNullDrinkPriceAndQualityData)
+            .sortedByDescending { it.drinksPrices.cokePepsiAThirdOfLiterBottleInRestaurants }
+            .take(if (limit > 0) limit else 0)
+            .map { Pair(it.country, it.drinksPrices.cokePepsiAThirdOfLiterBottleInRestaurants) }
+    }
+
+    private fun exceptionNullDrinkPriceAndQualityData(city: CityEntity): Boolean {
+        return city.drinksPrices.cokePepsiAThirdOfLiterBottleInRestaurants != null
+                && city.dataQuality
+    }
+}
diff --git a/src/main/kotlin/interactor/GetTopFashionCitiesInteractor.kt b/src/main/kotlin/interactor/GetTopFashionCitiesInteractor.kt
new file mode 100644
index 000000000..2acce4f7a
--- /dev/null
+++ b/src/main/kotlin/interactor/GetTopFashionCitiesInteractor.kt
@@ -0,0 +1,33 @@
+package interactor
+
+import model.CityEntity
+
+class GetTopFashionCitiesInteractor(
+    private val dataSource: CostOfLivingDataSource,
+) {
+    fun execute(limit: Int): List<String> {
+        return dataSource.getAllCitiesData()
+            .filter(::excludeNullPrices)
+            .sortedBy(::calculateClothesPrices)
+            .take(limit)
+            .map { it.cityName }
+    }
+
+    private fun excludeNullPrices(city: CityEntity): Boolean {
+        return with(city.clothesPrices) {
+            this.onePairOfJeansLevis50oneOrSimilar != null &&
+                    this.onePairOfNikeRunningShoesMidRange != null &&
+                    this.oneSummerDressInAChainStoreZaraHAndM != null
+        }
+    }
+
+    private fun calculateClothesPrices(city: CityEntity): Float {
+        return with(city.clothesPrices) {
+            onePairOfJeansLevis50oneOrSimilar!! +
+                    oneSummerDressInAChainStoreZaraHAndM!! +
+                    onePairOfNikeRunningShoesMidRange!!
+        }
+    }
+}
+
+
diff --git a/src/main/kotlin/interactor/util/Constants.kt b/src/main/kotlin/interactor/util/Constants.kt
new file mode 100644
index 000000000..99ce090e7
--- /dev/null
+++ b/src/main/kotlin/interactor/util/Constants.kt
@@ -0,0 +1,8 @@
+package interactor.util
+
+object Constants {
+    const val TWELVE_MONTH = 12
+    const val ONE_HUNDRED_SQUARE_METER = 100
+    const val COUNTRY_WAS_NOT_FOUND = "country was not found !"
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/interactor/util/Extension.kt b/src/main/kotlin/interactor/util/Extension.kt
new file mode 100644
index 000000000..077da529a
--- /dev/null
+++ b/src/main/kotlin/interactor/util/Extension.kt
@@ -0,0 +1,14 @@
+package interactor.util
+
+
+fun Float.toFormat(limit: Int = 1): Float {
+    return String.format("%.${limit}f", this).toFloat()
+}
+
+fun String.formatSentence(): String {
+    return this.lowercase().trim().replace(Regex(" +"), " ")
+}
+
+fun Float.toYear(): String {
+    return if (this >= 2.0) "$this years" else "$this year"
+}
diff --git a/src/test/kotlin/FakeData.kt b/src/test/kotlin/FakeData.kt
new file mode 100644
index 000000000..3de958757
--- /dev/null
+++ b/src/test/kotlin/FakeData.kt
@@ -0,0 +1,245 @@
+import interactor.CostOfLivingDataSource
+import model.*
+
+class FakeData : CostOfLivingDataSource {
+    val  emptyFakeData = emptyList<CityEntity>()
+
+    private val fakeData = listOf(
+        CityEntity(cityName="Caracas", country="Venezuela",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=10.0f, mealFor2PeopleMidRangeRestaurant=50.0f, mealAtMcDonaldSOrEquivalent=10.0f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.74f, cokePepsiAThirdOfLiterBottleInRestaurants=1.12f, waterAThirdOfLiterBottleInRestaurants=0.82f, milkRegularOneLiter=1.84f, waterOneAndHalfLiterBottleAtTheMarket=1.23f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=4.17f, banana1kg=1.09f, oranges1kg=1.52f, tomato1kg=1.41f, potato1kg=1.56f, onion1kg=1.62f, lettuceOneHead=1.03f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=2.35f, riceWhite1kg=1.14f, eggsRegular12=2.04f, localCheese1kg=5.27f, chickenFillets1kg=5.44f, beefRound1kgOrEquivalentBackLegRedMeat=6.25f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=12.37f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.07f, internet60MbpsOrMoreUnlimitedDataCableAdsl=49.38f, fitnessClubMonthlyFeeForOneAdult=45.64f, tennisCourtRentOneHourOnWeekend=14.12f, cinemaInternationalReleaseOneSeat=6.0f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=75.0f, internationalPrimarySchoolYearlyForOneChild=6280.0f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=41.43f, oneSummerDressInAChainStoreZaraHAndM=40.0f, onePairOfNikeRunningShoesMidRange=70.83f, onePairOfMenLeatherBusinessShoes=66.08f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.35f, monthlyPassRegularPrice=30.0f, taxiStartNormalTariff=4.0f, taxi1kmNormalTariff=2.0f, taxi1hourWaitingNormalTariff=11.0f, gasolineOneLiter=0.5f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=32000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=34714.29f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=383.33f, apartmentOneBedroomOutsideOfCentre=322.22f, apartment3BedroomsInCityCentre=831.25f, apartment3BedroomsOutsideOfCentre=587.5f, pricePerSquareMeterToBuyApartmentInCityCentre=805.57f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=1140.96f),
+            averageMonthlyNetSalaryAfterTax=185.12f, dataQuality=true)
+        ,
+        CityEntity(cityName="Accra", country="Ghana",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=2.5f, mealFor2PeopleMidRangeRestaurant=26.79f, mealAtMcDonaldSOrEquivalent=4.46f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.46f, cokePepsiAThirdOfLiterBottleInRestaurants=0.51f, waterAThirdOfLiterBottleInRestaurants=0.17f, milkRegularOneLiter=1.19f, waterOneAndHalfLiterBottleAtTheMarket=0.28f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=1.45f, banana1kg=0.68f, oranges1kg=0.73f, tomato1kg=1.15f, potato1kg=1.24f, onion1kg=1.01f, lettuceOneHead=0.6f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.64f, riceWhite1kg=0.88f, eggsRegular12=1.01f, localCheese1kg=6.91f, chickenFillets1kg=2.55f, beefRound1kgOrEquivalentBackLegRedMeat=2.66f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=26.75f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.03f, internet60MbpsOrMoreUnlimitedDataCableAdsl=31.37f, fitnessClubMonthlyFeeForOneAdult=26.61f, tennisCourtRentOneHourOnWeekend=3.29f, cinemaInternationalReleaseOneSeat=3.93f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=51.34f, internationalPrimarySchoolYearlyForOneChild=4665.08f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=8.8f, oneSummerDressInAChainStoreZaraHAndM=7.95f, onePairOfNikeRunningShoesMidRange=18.87f, onePairOfMenLeatherBusinessShoes=22.25f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.41f, monthlyPassRegularPrice=18.21f, taxiStartNormalTariff=0.71f, taxi1kmNormalTariff=0.71f, taxi1hourWaitingNormalTariff=2.5f, gasolineOneLiter=0.65f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=5571.43f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=4275.51f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=589.26f, apartmentOneBedroomOutsideOfCentre=41.21f, apartment3BedroomsInCityCentre=1355.52f, apartment3BedroomsOutsideOfCentre=178.93f, pricePerSquareMeterToBuyApartmentInCityCentre=1156.33f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=5016.08f),
+            averageMonthlyNetSalaryAfterTax=183.6f, dataQuality=true)
+        ,
+        CityEntity(cityName="Giza", country="Egypt",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=4.48f, mealFor2PeopleMidRangeRestaurant=10.17f, mealAtMcDonaldSOrEquivalent=3.26f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.24f, cokePepsiAThirdOfLiterBottleInRestaurants=0.22f, waterAThirdOfLiterBottleInRestaurants=0.15f, milkRegularOneLiter=0.71f, waterOneAndHalfLiterBottleAtTheMarket=0.22f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=1.1f, banana1kg=0.64f, oranges1kg=0.39f, tomato1kg=0.38f, potato1kg=0.3f, onion1kg=0.26f, lettuceOneHead=0.15f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.41f, riceWhite1kg=0.57f, eggsRegular12=1.16f, localCheese1kg=2.33f, chickenFillets1kg=3.65f, beefRound1kgOrEquivalentBackLegRedMeat=7.34f),
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+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=0.45f, banana1kg=0.9f, oranges1kg=0.2f, tomato1kg=0.52f, potato1kg=0.2f, onion1kg=0.25f, lettuceOneHead=0.2f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.75f, riceWhite1kg=1.46f, eggsRegular12=1.48f, localCheese1kg=3.97f, chickenFillets1kg=2.66f, beefRound1kgOrEquivalentBackLegRedMeat=7.27f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=13.21f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl=50.67f, fitnessClubMonthlyFeeForOneAdult=7.0f, tennisCourtRentOneHourOnWeekend=3.0f, cinemaInternationalReleaseOneSeat=2.36f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=22.5f, internationalPrimarySchoolYearlyForOneChild=816.73f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=18.33f, oneSummerDressInAChainStoreZaraHAndM=14.33f, onePairOfNikeRunningShoesMidRange=57.5f, onePairOfMenLeatherBusinessShoes=53.27f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=null, monthlyPassRegularPrice=null, taxiStartNormalTariff=0.6f, taxi1kmNormalTariff=1.59f, taxi1hourWaitingNormalTariff=3.0f, gasolineOneLiter=0.5f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=26000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=33666.67f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=null, apartmentOneBedroomOutsideOfCentre=null, apartment3BedroomsInCityCentre=null, apartment3BedroomsOutsideOfCentre=null, pricePerSquareMeterToBuyApartmentInCityCentre=null, pricePerSquareMeterToBuyApartmentOutsideOfCentre=null),
+            averageMonthlyNetSalaryAfterTax=30.0f,
+            dataQuality=false),
+
+        CityEntity(
+            cityName = "Damascus", country = "Syria",
+            mealsPrices = MealsPrices(mealInexpensiveRestaurant = 4.0f, mealFor2PeopleMidRangeRestaurant = 22.0f, mealAtMcDonaldSOrEquivalent = 4.5f),
+            drinksPrices = DrinksPrices(cappuccinoRegularInRestaurants = 1.01f, cokePepsiAThirdOfLiterBottleInRestaurants = 0.82f, waterAThirdOfLiterBottleInRestaurants = 0.46f, milkRegularOneLiter = 1.15f, waterOneAndHalfLiterBottleAtTheMarket = 0.56f),
+            fruitAndVegetablesPrices = FruitAndVegetablesPrices(apples1kg = 1.01f, banana1kg = 2.32f, oranges1kg = 0.64f, tomato1kg = 0.79f, potato1kg = 0.63f, onion1kg = 0.39f, lettuceOneHead = 0.32f),
+            foodPrices = FoodPrices(loafOfFreshWhiteBread500g = 1.17f, riceWhite1kg = 1.46f, eggsRegular12 = 1.48f, localCheese1kg = 3.97f, chickenFillets1kg = 6.25f, beefRound1kgOrEquivalentBackLegRedMeat = 10.25f),
+            servicesPrices = ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment = 18.48f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans = 0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl = 50.67f, fitnessClubMonthlyFeeForOneAdult = 14.47f, tennisCourtRentOneHourOnWeekend = 10.0f, cinemaInternationalReleaseOneSeat = 3.0f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild = 133.06f, internationalPrimarySchoolYearlyForOneChild = 2676.54f),
+            clothesPrices = ClothesPrices(onePairOfJeansLevis50oneOrSimilar = 36.19f, oneSummerDressInAChainStoreZaraHAndM = 29.5f, onePairOfNikeRunningShoesMidRange = 116.22f, onePairOfMenLeatherBusinessShoes = 64.64f),
+            transportationsPrices = TransportationsPrices(oneWayTicketLocalTransport = 0.1f, monthlyPassRegularPrice = 17.0f, taxiStartNormalTariff = 1.19f, taxi1kmNormalTariff = 1.59f, taxi1hourWaitingNormalTariff = 7.93f, gasolineOneLiter = 1.16f),
+            carsPrices = CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar = 26000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar = 33666.67f),
+            realEstatesPrices = RealEstatesPrices(apartmentOneBedroomInCityCentre = 282.72f, apartmentOneBedroomOutsideOfCentre = 182.54f, apartment3BedroomsInCityCentre = 476.27f, apartment3BedroomsOutsideOfCentre = 266.42f, pricePerSquareMeterToBuyApartmentInCityCentre = 2000.0f, pricePerSquareMeterToBuyApartmentOutsideOfCentre = 1877.4f),
+            averageMonthlyNetSalaryAfterTax = 50.24f,
+            dataQuality = true),
+
+        CityEntity(
+            cityName = "Santa Clara", country = "Cuba",
+            mealsPrices = MealsPrices(mealInexpensiveRestaurant = 10.0f, mealFor2PeopleMidRangeRestaurant = 30.0f, mealAtMcDonaldSOrEquivalent = 5.0f),
+            drinksPrices = DrinksPrices(cappuccinoRegularInRestaurants = 1.91f, cokePepsiAThirdOfLiterBottleInRestaurants = 2.0f, waterAThirdOfLiterBottleInRestaurants = 0.5f, milkRegularOneLiter = 3.52f, waterOneAndHalfLiterBottleAtTheMarket = 0.98f),
+            fruitAndVegetablesPrices = FruitAndVegetablesPrices(apples1kg = 6.24f, banana1kg = 1.0f, oranges1kg = 1.12f, tomato1kg = 1.0f, potato1kg = 1.82f, onion1kg = 2.0f, lettuceOneHead = 0.86f),
+            foodPrices = FoodPrices(loafOfFreshWhiteBread500g = 1.0f, riceWhite1kg = 1.0f, eggsRegular12 = 1.64f, localCheese1kg = 4.0f, chickenFillets1kg = 6.07f, beefRound1kgOrEquivalentBackLegRedMeat = 10.0f),
+            servicesPrices = ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment = 11.5f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans = 0.26f, internet60MbpsOrMoreUnlimitedDataCableAdsl = 80.0f, fitnessClubMonthlyFeeForOneAdult = 6.0f, tennisCourtRentOneHourOnWeekend = null, cinemaInternationalReleaseOneSeat = 1.12f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild = 70.0f, internationalPrimarySchoolYearlyForOneChild = 15166.67f),
+            clothesPrices = ClothesPrices(onePairOfJeansLevis50oneOrSimilar = 55.5f, oneSummerDressInAChainStoreZaraHAndM = 44.33f, onePairOfNikeRunningShoesMidRange = 79.17f, onePairOfMenLeatherBusinessShoes = 78.0f),
+            transportationsPrices = TransportationsPrices(oneWayTicketLocalTransport = 0.5f, monthlyPassRegularPrice = null, taxiStartNormalTariff = 1.0f, taxi1kmNormalTariff = 0.5f, taxi1hourWaitingNormalTariff = 15.0f, gasolineOneLiter = 1.14f),
+            carsPrices = CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar = 80000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar = 81500.0f),
+            realEstatesPrices = RealEstatesPrices(apartmentOneBedroomInCityCentre = null, apartmentOneBedroomOutsideOfCentre = null, apartment3BedroomsInCityCentre = null, apartment3BedroomsOutsideOfCentre = null, pricePerSquareMeterToBuyApartmentInCityCentre = null, pricePerSquareMeterToBuyApartmentOutsideOfCentre = null), averageMonthlyNetSalaryAfterTax = 25.0f,
+            dataQuality = false
+        ),
+
+        CityEntity(cityName="Havana", country="Cuba",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=10.0f, mealFor2PeopleMidRangeRestaurant=40.0f, mealAtMcDonaldSOrEquivalent=7.0f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.91f, cokePepsiAThirdOfLiterBottleInRestaurants=2.28f, waterAThirdOfLiterBottleInRestaurants=1.63f, milkRegularOneLiter=3.52f, waterOneAndHalfLiterBottleAtTheMarket=0.98f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=6.24f, banana1kg=1.1f, oranges1kg=1.12f, tomato1kg=2.05f, potato1kg=1.82f, onion1kg=2.34f, lettuceOneHead=0.86f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=1.18f, riceWhite1kg=1.85f, eggsRegular12=1.64f, localCheese1kg=4.85f, chickenFillets1kg=6.07f, beefRound1kgOrEquivalentBackLegRedMeat=11.59f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=37.14f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.26f, internet60MbpsOrMoreUnlimitedDataCableAdsl=165.0f, fitnessClubMonthlyFeeForOneAdult=16.67f, tennisCourtRentOneHourOnWeekend=13.75f, cinemaInternationalReleaseOneSeat=1.12f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=70.0f, internationalPrimarySchoolYearlyForOneChild=15166.67f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=55.5f, oneSummerDressInAChainStoreZaraHAndM=44.33f, onePairOfNikeRunningShoesMidRange=79.17f, onePairOfMenLeatherBusinessShoes=78.0f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.1f, monthlyPassRegularPrice=20.0f, taxiStartNormalTariff=1.0f, taxi1kmNormalTariff=0.5f, taxi1hourWaitingNormalTariff=15.0f, gasolineOneLiter=1.14f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=80000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=81500.0f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=532.86f, apartmentOneBedroomOutsideOfCentre=222.5f, apartment3BedroomsInCityCentre=1625.0f, apartment3BedroomsOutsideOfCentre=730.0f, pricePerSquareMeterToBuyApartmentInCityCentre=490.89f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=268.23f), averageMonthlyNetSalaryAfterTax=35.75f, dataQuality=true),
+
+        CityEntity(cityName="Damascus", country="Syria",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=4.0f, mealFor2PeopleMidRangeRestaurant=22.0f, mealAtMcDonaldSOrEquivalent=4.5f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.01f, cokePepsiAThirdOfLiterBottleInRestaurants=0.82f, waterAThirdOfLiterBottleInRestaurants=0.46f, milkRegularOneLiter=1.15f, waterOneAndHalfLiterBottleAtTheMarket=0.56f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=1.01f, banana1kg=2.32f, oranges1kg=0.64f, tomato1kg=0.79f, potato1kg=0.63f, onion1kg=0.39f, lettuceOneHead=0.32f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=1.17f, riceWhite1kg=1.46f, eggsRegular12=1.48f, localCheese1kg=3.97f, chickenFillets1kg=6.25f, beefRound1kgOrEquivalentBackLegRedMeat=10.25f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=18.48f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl=50.67f, fitnessClubMonthlyFeeForOneAdult=14.47f, tennisCourtRentOneHourOnWeekend=10.0f, cinemaInternationalReleaseOneSeat=3.0f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=133.06f, internationalPrimarySchoolYearlyForOneChild=2676.54f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=36.19f, oneSummerDressInAChainStoreZaraHAndM=29.5f, onePairOfNikeRunningShoesMidRange=116.22f, onePairOfMenLeatherBusinessShoes=64.64f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.1f, monthlyPassRegularPrice=17.0f, taxiStartNormalTariff=1.19f, taxi1kmNormalTariff=1.59f, taxi1hourWaitingNormalTariff=7.93f, gasolineOneLiter=1.16f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=26000.0f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=33666.67f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=282.72f, apartmentOneBedroomOutsideOfCentre=182.54f, apartment3BedroomsInCityCentre=476.27f, apartment3BedroomsOutsideOfCentre=266.42f, pricePerSquareMeterToBuyApartmentInCityCentre=2000.0f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=1877.4f), averageMonthlyNetSalaryAfterTax=50.24f, dataQuality=true),
+
+        CityEntity(cityName="Tanta", country="Egypt",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=4.07f, mealFor2PeopleMidRangeRestaurant=14.24f, mealAtMcDonaldSOrEquivalent=2.85f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.15f, cokePepsiAThirdOfLiterBottleInRestaurants=0.27f, waterAThirdOfLiterBottleInRestaurants=0.16f, milkRegularOneLiter=0.73f, waterOneAndHalfLiterBottleAtTheMarket=0.23f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=0.75f, banana1kg=0.5f, oranges1kg=0.26f, tomato1kg=0.53f, potato1kg=0.37f, onion1kg=0.37f, lettuceOneHead=0.16f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.33f, riceWhite1kg=0.5f, eggsRegular12=1.08f, localCheese1kg=2.4f, chickenFillets1kg=2.65f, beefRound1kgOrEquivalentBackLegRedMeat=6.31f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=20.35f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl=9.77f, fitnessClubMonthlyFeeForOneAdult=10.17f, tennisCourtRentOneHourOnWeekend=5.6f, cinemaInternationalReleaseOneSeat=3.66f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=50.87f, internationalPrimarySchoolYearlyForOneChild=1078.49f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=14.24f, oneSummerDressInAChainStoreZaraHAndM=32.05f, onePairOfNikeRunningShoesMidRange=89.54f, onePairOfMenLeatherBusinessShoes=28.49f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.12f, monthlyPassRegularPrice=1.02f, taxiStartNormalTariff=0.41f, taxi1kmNormalTariff=0.2f, taxi1hourWaitingNormalTariff=0.73f, gasolineOneLiter=0.38f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=20348.95f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=16228.29f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=156.01f, apartmentOneBedroomOutsideOfCentre=71.22f, apartment3BedroomsInCityCentre=196.71f, apartment3BedroomsOutsideOfCentre=142.44f, pricePerSquareMeterToBuyApartmentInCityCentre=335.76f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=241.47f), averageMonthlyNetSalaryAfterTax=101.74f, dataQuality=true),
+
+        CityEntity(cityName="Multan", country="Pakistan",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=1.34f, mealFor2PeopleMidRangeRestaurant=8.49f, mealAtMcDonaldSOrEquivalent=3.35f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.09f, cokePepsiAThirdOfLiterBottleInRestaurants=0.22f, waterAThirdOfLiterBottleInRestaurants=0.14f, milkRegularOneLiter=0.49f, waterOneAndHalfLiterBottleAtTheMarket=0.27f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=0.83f, banana1kg=0.52f, oranges1kg=0.48f, tomato1kg=0.54f, potato1kg=0.32f, onion1kg=0.34f, lettuceOneHead=0.45f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.42f, riceWhite1kg=0.73f, eggsRegular12=0.89f, localCheese1kg=6.39f, chickenFillets1kg=1.8f, beefRound1kgOrEquivalentBackLegRedMeat=3.32f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=56.04f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl=12.85f, fitnessClubMonthlyFeeForOneAdult=12.26f, tennisCourtRentOneHourOnWeekend=3.69f, cinemaInternationalReleaseOneSeat=2.46f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=29.03f, internationalPrimarySchoolYearlyForOneChild=643.72f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=12.67f, oneSummerDressInAChainStoreZaraHAndM=28.58f, onePairOfNikeRunningShoesMidRange=28.27f, onePairOfMenLeatherBusinessShoes=21.92f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.12f, monthlyPassRegularPrice=4.47f, taxiStartNormalTariff=0.67f, taxi1kmNormalTariff=0.09f, taxi1hourWaitingNormalTariff=1.34f, gasolineOneLiter=0.69f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=8940.55f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=14640.14f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=54.05f, apartmentOneBedroomOutsideOfCentre=45.44f, apartment3BedroomsInCityCentre=182.47f, apartment3BedroomsOutsideOfCentre=131.87f, pricePerSquareMeterToBuyApartmentInCityCentre=236.34f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=202.81f),
+            averageMonthlyNetSalaryAfterTax=125.87f,
+            dataQuality=true),
+        CityEntity(cityName="Colombo", country="Sri Lanka",
+            mealsPrices=MealsPrices(mealInexpensiveRestaurant=1.36f, mealFor2PeopleMidRangeRestaurant=10.85f, mealAtMcDonaldSOrEquivalent=3.25f),
+            drinksPrices=DrinksPrices(cappuccinoRegularInRestaurants=1.46f, cokePepsiAThirdOfLiterBottleInRestaurants=0.35f, waterAThirdOfLiterBottleInRestaurants=0.18f, milkRegularOneLiter=1.15f, waterOneAndHalfLiterBottleAtTheMarket=0.4f),
+            fruitAndVegetablesPrices=FruitAndVegetablesPrices(apples1kg=4.27f, banana1kg=0.76f, oranges1kg=3.18f, tomato1kg=1.42f, potato1kg=1.02f, onion1kg=0.74f, lettuceOneHead=0.83f),
+            foodPrices=FoodPrices(loafOfFreshWhiteBread500g=0.64f, riceWhite1kg=0.66f, eggsRegular12=1.77f, localCheese1kg=7.4f, chickenFillets1kg=4.03f, beefRound1kgOrEquivalentBackLegRedMeat=5.89f),
+            servicesPrices=ServicesPrices(basicElectricityHeatingCoolingWaterGarbageFor85m2Apartment=23.56f, oneMinOfPrepaidMobileTariffLocalNoDiscountsOrPlans=0.01f, internet60MbpsOrMoreUnlimitedDataCableAdsl=9.61f, fitnessClubMonthlyFeeForOneAdult=9.43f, tennisCourtRentOneHourOnWeekend=3.73f, cinemaInternationalReleaseOneSeat=2.37f, preschoolOrKindergartenFullDayPrivateMonthlyForOneChild=26.55f, internationalPrimarySchoolYearlyForOneChild=425.77f),
+            clothesPrices=ClothesPrices(onePairOfJeansLevis50oneOrSimilar=20.59f, oneSummerDressInAChainStoreZaraHAndM=12.77f, onePairOfNikeRunningShoesMidRange=44.42f, onePairOfMenLeatherBusinessShoes=24.71f),
+            transportationsPrices=TransportationsPrices(oneWayTicketLocalTransport=0.11f, monthlyPassRegularPrice=4.07f, taxiStartNormalTariff=0.27f, taxi1kmNormalTariff=0.27f, taxi1hourWaitingNormalTariff=0.49f, gasolineOneLiter=1.17f),
+            carsPrices=CarsPrices(volkswagenGolf_1_4_90kwTrendLineOrEquivalentNewCar=24406.97f, toyotaCorollaSedan_1_6l_97kwComfortOrEquivalentNewCar=28672.95f),
+            realEstatesPrices=RealEstatesPrices(apartmentOneBedroomInCityCentre=295.76f, apartmentOneBedroomOutsideOfCentre=109.14f, apartment3BedroomsInCityCentre=549.78f, apartment3BedroomsOutsideOfCentre=221.96f, pricePerSquareMeterToBuyApartmentInCityCentre=1734.36f, pricePerSquareMeterToBuyApartmentOutsideOfCentre=1114.33f),
+            averageMonthlyNetSalaryAfterTax=156.15f, dataQuality=true),
+
+
+        )
+
+    override fun getAllCitiesData(): List<CityEntity> {
+        return fakeData
+    }
+}
diff --git a/src/test/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractorTest.kt b/src/test/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractorTest.kt
new file mode 100644
index 000000000..a499886b3
--- /dev/null
+++ b/src/test/kotlin/interactor/GetCitiesAndYearsToBuyApartmentInteractorTest.kt
@@ -0,0 +1,114 @@
+package interactor
+
+import FakeData
+import model.CityEntity
+import org.junit.jupiter.api.*
+
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.function.Executable
+import kotlin.Exception
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class GetCitiesAndYearsToBuyApartmentInteractorTest {
+
+
+    private lateinit var getCitiesAndYearsToBuyApartment: GetCitiesAndYearsToBuyApartmentInteractor
+
+    @BeforeAll
+    fun setUp() {
+        val fakeData = FakeData()
+        getCitiesAndYearsToBuyApartment = GetCitiesAndYearsToBuyApartmentInteractor(fakeData)
+    }
+
+
+    @Test
+    fun should_returnTop10Cities_when_calculatedYearsNeededToBuyApartmentIsCorrect() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(expectedResult, actualResult)
+    }
+
+
+    @Test
+    fun should_excludeData_when_citiesIsNull() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(expectedResult, actualResult)
+    }
+
+
+    @Test
+    fun should_excludeData_when_salaryIsNull() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(expectedResult, actualResult)
+    }
+
+
+    @Test
+    fun should_excludeData_when_pricesPerSquareMeterIsNull() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(expectedResult, actualResult)
+    }
+
+
+    @Test
+    fun should_excludeData_when_lowQualityData() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(expectedResult, actualResult)
+    }
+
+
+    @Test
+    @Disabled
+    fun should_returnEmptyList_when_dataIsEmpty() {
+        //When
+        val actualResult = getCitiesAndYearsToBuyApartment.execute(limit)
+
+        //Then
+        assertEquals(emptyList<CityEntity>(), actualResult)
+    }
+
+
+    @Test
+    @Disabled
+    fun should_throwException_when_salaryIsZero() {
+        //When
+        val actualExecutable = Executable { getCitiesAndYearsToBuyApartment.execute(limit) }
+
+        //Then
+        assertThrows(Exception::class.java, actualExecutable)
+    }
+
+
+    companion object {
+
+        private const val limit = 10
+
+        private val expectedResult = listOf(
+            Pair("Hyderabad City", "10.6 years"),
+            Pair("Giza", "11.1 years"),
+            Pair("Alexandria", "12.5 years"),
+            Pair("Multan", "13.4 years"),
+            Pair("Lahore", "15.6 years"),
+            Pair("Dushanbe", "19.4 years"),
+            Pair("Tanta", "19.8 years"),
+            Pair("Karachi", "20.6 years"),
+            Pair("Rawalpindi", "35.1 years"),
+            Pair("Caracas", "51.4 years"),
+        )
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractorTest.kt b/src/test/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractorTest.kt
new file mode 100644
index 000000000..755935197
--- /dev/null
+++ b/src/test/kotlin/interactor/GetCitiesNamesSortedByCheapestBananaPricesInteractorTest.kt
@@ -0,0 +1,83 @@
+package interactor
+
+import FakeData
+import org.junit.jupiter.api.*
+import kotlin.test.assertEquals
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class GetCitiesNamesSortedByCheapestBananaPricesInteractorTest {
+
+    private lateinit var getCitiesNamesSortedByCheapestBananaPrices: GetCitiesNamesSortedByCheapestBananaPricesInteractor
+
+    @BeforeAll
+    fun setUp() {
+        val fakeData = FakeData()
+        getCitiesNamesSortedByCheapestBananaPrices = GetCitiesNamesSortedByCheapestBananaPricesInteractor(fakeData)
+    }
+
+    @Test
+    fun should_returnListOfCorrectCitiesName_when_haveCorrectListWithUpperCase() {
+        //given list of cities with upper case
+        val cities = listOf("Caracas", "Accra", "Giza")
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult = listOf("Giza", "Accra", "Caracas")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnCorrectCitiesName_when_haveCorrectListWithLowerCase() {
+        //given list of cities with lower case
+        val cities = listOf("caracas", "accra", "giza")
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult = listOf("Giza", "Accra", "Caracas")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnListOfCorrectCitiesName_when_haveSpaceAtTheEndAndTheStartOfCityName() {
+        //given a list of cities name with space at the end or the start or both
+        val cities = listOf(" caracas ", "accra ", " giza")
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult = listOf("Giza", "Accra", "Caracas")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnCorrectListOfCitiesName_when_citiesNameHaveLowerAndUpperCase() {
+        //given list of cities with lower and upper case
+        val cities = listOf("CarAcas", "ACCRA", "giZA")
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult = listOf("Giza", "Accra", "Caracas")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnEmptyList_when_haveEmptyList() {
+        //given empty list
+        val cities = listOf<String>()
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult: List<String> = emptyList()
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnCorrectSortedByTheCheapestBananaList_when_haveCorrectCitiesName() {
+        //given list of correct cities name
+        val cities = listOf("Caracas", "Accra", "Giza")
+        //when
+        val result = getCitiesNamesSortedByCheapestBananaPrices.execute(*cities.toTypedArray())
+        val expectedResult = listOf("Giza", "Accra", "Caracas")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+}
diff --git a/src/test/kotlin/interactor/GetCountryCitiesAverageSalaryInteractorTest.kt b/src/test/kotlin/interactor/GetCountryCitiesAverageSalaryInteractorTest.kt
new file mode 100644
index 000000000..3dbd3b999
--- /dev/null
+++ b/src/test/kotlin/interactor/GetCountryCitiesAverageSalaryInteractorTest.kt
@@ -0,0 +1,63 @@
+package interactor
+
+import FakeData
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.TestInstance
+import org.junit.jupiter.api.function.Executable
+
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class GetCountryCitiesAverageSalaryInteractorTest {
+
+    private lateinit var getCountryCitiesAverageSalary: GetCountryCitiesAverageSalaryInteractor
+
+    @BeforeAll
+    fun setUp() {
+        val fakeData = FakeData()
+        getCountryCitiesAverageSalary = GetCountryCitiesAverageSalaryInteractor(fakeData)
+    }
+
+    @Test
+    fun should_ReturnCitiesSalaries_When_EnteringCountryNameWithSpaces() {
+        //given
+        val country = "sri     lanka"
+        // when
+        val result = getCountryCitiesAverageSalary.execute(country = country)
+        val expectedResult = listOf(Pair("Colombo", 156.15f), Pair("Colombo", 156.15f))
+        //then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_throwException_when_enteringEmptyString() {
+        //given
+        val country = ""
+        // when
+        val result = Executable { getCountryCitiesAverageSalary.execute(country = country) }
+        //then
+        assertThrows(Exception::class.java, result)
+    }
+
+    @Test
+    fun should_throwException_when_enteringCountryNameNotInEnglish() {
+        //given
+        val country = "كوبا"
+        // when
+        val result = Executable { getCountryCitiesAverageSalary.execute(country = country) }
+        //then
+        assertThrows(Exception::class.java, result)
+    }
+
+    @Test
+    fun should_returnCountryCities_when_enteringCountryInUpperCase() {
+        //given
+        val country = "CUBA"
+        // when
+        val result = getCountryCitiesAverageSalary.execute(country = country)
+        val expectedResult = listOf(Pair("Havana", 35.75f))
+        //then
+        assertEquals(expectedResult, result)
+    }
+}
\ No newline at end of file
diff --git a/src/test/kotlin/interactor/GetHighestSalaryAverageCitiesNamesInteractTest.kt b/src/test/kotlin/interactor/GetHighestSalaryAverageCitiesNamesInteractTest.kt
new file mode 100644
index 000000000..1d9a327bb
--- /dev/null
+++ b/src/test/kotlin/interactor/GetHighestSalaryAverageCitiesNamesInteractTest.kt
@@ -0,0 +1,25 @@
+package interactor
+
+import FakeData
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.TestInstance
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class GetHighestSalaryAverageCitiesNamesInteractTest {
+
+    private lateinit var getHighestSalaryAverageCititesNames: GetHighestSalaryAverageCititesNamesInteractor
+
+    @BeforeAll
+    fun setUp() {
+        val fakeData = FakeData()
+        getHighestSalaryAverageCititesNames = GetHighestSalaryAverageCititesNamesInteractor(fakeData)
+    }
+
+    @Test
+    fun execute() {
+    }
+}
\ No newline at end of file
diff --git a/src/test/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractorTest.kt b/src/test/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractorTest.kt
new file mode 100644
index 000000000..fb7a080ba
--- /dev/null
+++ b/src/test/kotlin/interactor/GetLowCostFruitVegetableCitiesWithHighSalariesInteractorTest.kt
@@ -0,0 +1,89 @@
+package interactor
+
+import FakeData
+import model.*
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.TestInstance
+import org.junit.jupiter.api.function.Executable
+import kotlin.test.assertEquals
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+internal class GetLowCostFruitVegetableCitiesWithHighSalariesInteractorTest {
+    private lateinit var getLowCostFruitVegetableCitiesWithHighSalaries: GetLowCostFruitVegetableCitiesWithHighSalariesInteractor
+
+    @BeforeAll
+    fun setup() {
+        getLowCostFruitVegetableCitiesWithHighSalaries =
+            GetLowCostFruitVegetableCitiesWithHighSalariesInteractor(FakeData())
+    }
+
+    @Test
+    fun should_returnCorrectResult_when_correctListIsGiven() {
+        //given the limit of cities is 10
+        val expectedResult = listOf("Giza","Rawalpindi","Alexandria","Hyderabad City","Karachi","Lahore","Multan","Tanta","Accra","Dushanbe")
+        val limit = 10
+        // when find 10 cities that has lowest fruitVeg prices comparing to salaries paid there
+        val result = getLowCostFruitVegetableCitiesWithHighSalaries.execute(limit)
+
+        //then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_returnTen_when_theSizeOfTheListIsTen() {
+        //given the limit of cities is 10
+        val limit = 10
+        // when
+        val result = getLowCostFruitVegetableCitiesWithHighSalaries.execute(limit)
+
+        //then
+        assertEquals(10, result.size)
+    }
+
+    @Test
+    fun should_returnExceptionw_when_inputLimitIsMoreThanListSize() {
+        //given the limit of cities is 20
+        val limit = 20
+        // when
+        val exception : Executable =Executable{
+            getLowCostFruitVegetableCitiesWithHighSalaries.execute(limit)
+        }
+
+        //then
+        assertThrows(Exception::class.java,exception)
+    }
+
+    @Test
+    fun should_returnExceptionw_when_inputIsZero() {
+        //given the limit of cities is 0
+        val limit = 0
+        // when
+        val exception : Executable =Executable{
+            getLowCostFruitVegetableCitiesWithHighSalaries.execute(limit)
+        }
+
+        //then
+        assertThrows(Exception::class.java,exception)
+    }
+
+    @Test
+    fun should_returnExceptionw_when_inputIsNegative() {
+        //given the limit of cities is -1
+        val limit = -1
+        // when
+        val exception : Executable =Executable{
+            getLowCostFruitVegetableCitiesWithHighSalaries.execute(limit)
+        }
+
+        //then
+        assertThrows(Exception::class.java,exception)
+    }
+
+
+
+
+
+
+}
\ No newline at end of file
diff --git a/src/test/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctorTest.kt b/src/test/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctorTest.kt
new file mode 100644
index 000000000..cd542b272
--- /dev/null
+++ b/src/test/kotlin/interactor/GetTopCountriesHaveHighCarbonatedDrinksPricesInterctorTest.kt
@@ -0,0 +1,72 @@
+package interactor
+
+import FakeData
+import model.CityEntity
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.TestInstance
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class GetTopCountriesHaveHighCarbonatedDrinksPricesInterctorTest {
+
+    private lateinit var getTopCountriesHaveHighCarbonatedDrinksPrices: GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor
+
+    @BeforeAll
+    fun setUp() {
+        val fakeData = FakeData()
+        getTopCountriesHaveHighCarbonatedDrinksPrices = GetTopCountriesHaveHighCarbonatedDrinksPricesInterctor(fakeData)
+    }
+
+
+    @Test
+    fun should_ReturnCorrect_When_LimitIsMoreThanZero() {
+        //given Country with drink price and limit
+        val limit = 3
+        //when getting a list of pair  contains the country name and drink price
+        val result = getTopCountriesHaveHighCarbonatedDrinksPrices.execute(limit)
+        // then
+        assertEquals(3, result.size)
+        assertEquals("Cuba", result[0].first)
+        assertEquals(2.28f, result[0].second)
+        assertEquals("Venezuela", result[1].first)
+        assertEquals(1.12f, result[1].second)
+        assertEquals("Syria", result[2].first)
+        assertEquals(0.82f, result[2].second)
+    }
+
+    @Test
+    fun should_ReturnEmptyList_When_LimitIsZero() {
+        //given
+        val limit = 0
+        //when
+        val result = getTopCountriesHaveHighCarbonatedDrinksPrices.execute(limit)
+        // Then
+        assertTrue(result.isEmpty())
+    }
+
+    @Test
+    fun should_ReturnEmptyList_When_LimitIsNegative() {
+        //given
+        val limit = -6
+        //when
+        val result = getTopCountriesHaveHighCarbonatedDrinksPrices.execute(limit)
+        // Then
+        assertEquals(emptyList<CityEntity>(), result)
+    }
+
+
+    @Test
+    fun should_ThrowErrorMessage_When_ThePriceIsNull() {
+        //given Country with drink price and limit
+        val limit = 10
+        //when getting a Data contains null price value
+        val getTop10CountriesWithHighTaxOnCarbonatedDrinks =
+            getTopCountriesHaveHighCarbonatedDrinksPrices.execute(limit)
+        //then
+        if (getTop10CountriesWithHighTaxOnCarbonatedDrinks.any { it.second == null })
+            AssertionError("Drink Price can't be Null")
+    }
+
+}
diff --git a/src/test/kotlin/interactor/GetTopFashionCitiesInteractorTest.kt b/src/test/kotlin/interactor/GetTopFashionCitiesInteractorTest.kt
new file mode 100644
index 000000000..dc24e03a9
--- /dev/null
+++ b/src/test/kotlin/interactor/GetTopFashionCitiesInteractorTest.kt
@@ -0,0 +1,46 @@
+package interactor
+
+import FakeData
+import junit.framework.TestCase.assertEquals
+import org.junit.jupiter.api.*
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+internal class GetTopFashionCitiesInteractorTest {
+    private lateinit var getTopFashionCities: GetTopFashionCitiesInteractor
+
+    @BeforeAll
+    fun setUp() {
+       val fakeData = FakeData()
+        getTopFashionCities = GetTopFashionCitiesInteractor(fakeData)
+    }
+
+    @Test
+    fun should_ReturnCorrectList_When_HaveLimitValueMoreThanZero() {
+        //given limit value > 0
+        val limit = 5
+        //when
+        val result = getTopFashionCities.execute(limit)
+        val expectedResult = listOf("Accra", "Multan", "Karachi", "Rawalpindi", "Hyderabad City")
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_ReturnEmptyList_When_HaveLimitValueZero() {
+        //given limit value = 0
+        val limit = 0
+        //when
+        val result = getTopFashionCities.execute(limit)
+        val expectedResult = emptyList<String>()
+        //Then
+        assertEquals(expectedResult, result)
+    }
+
+    @Test
+    fun should_ThrowException_When_HaveNegativeLimitValue() {
+        //given  limit value < 0
+        val limit = -1
+        //Then exception should be thrown
+        assertThrows<IllegalArgumentException> { getTopFashionCities.execute(limit) }
+    }
+}