diff --git a/.gitignore b/.gitignore
index 7fe3d27a..2329b52b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -103,4 +103,7 @@ coverage.xml
 docs/_build/
 venv/
 *.iml
-.idea/
\ No newline at end of file
+.idea/
+
+# Pytest
+.pytest_cache/
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index cb7df909..b326726f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,11 +5,10 @@ python:
 - '3.6'
 install:
 - pip install -r requirements-dev.txt
-- pip install --user codecov
 matrix:
   fast_finish: true
 script:
-- pytest
+- pytest --cov=./
 stages:
 - test
 - deploy
diff --git a/design_request_example.json b/design_request_example.json
deleted file mode 100644
index 580e846a..00000000
--- a/design_request_example.json
+++ /dev/null
@@ -1,33 +0,0 @@
-{
-  "request": {
-    "unit_process": "pipe_example",
-    "name":"conduction line",
-    "request_timestamp":"1503614908",
-    "flow_rate": {
-      "magnitude":3.5,
-      "units":"L/s"
-    },
-    "length":{
-      "magnitude":4,
-      "units":"m"
-    },
-    "max_hl":{
-      "magnitude":30,
-      "units":"cm"
-    }
-    
-  },
-  "result": {
-    "unit_process": "pipe_example",
-    "name":"conduction line",
-    "length":{
-      "magnitude":4,
-      "units":"m"
-    },
-    "nominal_diameter":3,
-    "resulting_headloss":{
-      "magnitude":20,
-      "units":"cm"
-    }
-  }
-}
\ No newline at end of file
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8b51fbe5..5ef85baf 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,4 +2,6 @@ scipy
 numpy
 pandas
 matplotlib
-pint
\ No newline at end of file
+pint
+codecov
+pytest-cov
\ No newline at end of file