Add LogContextManagerTests

src/Core.UnitTests/Logging/LogContextManagerTests.cs

@@ -0,0 +1,105 @@
+/*
+ * SonarLint for Visual Studio
+ * Copyright (C) 2016-2024 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+using SonarLint.VisualStudio.Core.Logging;
+using SonarLint.VisualStudio.TestInfrastructure;
+
+namespace SonarLint.VisualStudio.Core.UnitTests.Logging;
+
+[TestClass]
+public class LogContextManagerTests
+{
+    [TestMethod]
+    public void MefCtor_CheckIsExported() =>
+        MefTestHelpers.CheckTypeCanBeImported<LogContextManager, ILogContextManager>();
+
+    [TestMethod]
+    public void MefCtor_CheckIsSingleton() =>
+        MefTestHelpers.CheckIsNonSharedMefComponent<LogContextManager>();
+
+    [TestMethod]
+    public void EmptyContext()
+    {
+        var testSubject = new LogContextManager();
+
+        testSubject.FormatedContext.Should().BeNull();
+        testSubject.FormatedVerboseContext.Should().BeNull();
+    }
+
+    [TestMethod]
+    public void Augmented_Immutable()
+    {
+        var testSubject = new LogContextManager();
+        var contextualized= testSubject.CreateAugmentedContext(["a"]);
+        var verboseContextualized = testSubject.CreateAugmentedVerboseContext(["b"]);
+        var doubleContextualized = testSubject.CreateAugmentedContext(["c"]).CreateAugmentedVerboseContext(["d"]);
+
+        testSubject.FormatedContext.Should().BeNull();
+        testSubject.FormatedVerboseContext.Should().BeNull();
+        contextualized.FormatedContext.Should().Be("a");
+        contextualized.FormatedVerboseContext.Should().BeNull();
+        verboseContextualized.FormatedContext.Should().BeNull();
+        verboseContextualized.FormatedVerboseContext.Should().Be("b");
+        doubleContextualized.FormatedContext.Should().Be("c");
+        doubleContextualized.FormatedVerboseContext.Should().Be("d");
+    }
+
+    [TestMethod]
+    public void Augmented_MultipleAtOnce_Combines() =>
+        new LogContextManager()
+            .CreateAugmentedContext(["a", "b"])
+            .FormatedContext.Should().Be("a > b");
+
+    [TestMethod]
+    public void Augmented_MultipleInSequence_Combines() =>
+        new LogContextManager()
+            .CreateAugmentedContext(["a"])
+            .CreateAugmentedContext(["b"])
+            .FormatedContext.Should().Be("a > b");
+
+    [TestMethod]
+    public void Augmented_AtOnceAndInSequence_CombinesInCorrectOrder() =>
+        new LogContextManager()
+            .CreateAugmentedContext(["a"])
+            .CreateAugmentedContext(["b", "c"])
+            .CreateAugmentedContext(["d"])
+            .FormatedContext.Should().Be("a > b > c > d");
+
+    [TestMethod]
+    public void AugmentedVerbose_MultipleAtOnce_Combines() =>
+        new LogContextManager()
+            .CreateAugmentedVerboseContext(["a", "b"])
+            .FormatedVerboseContext.Should().Be("a > b");
+
+    [TestMethod]
+    public void AugmentedVerbose_MultipleInSequence_Combines() =>
+        new LogContextManager()
+            .CreateAugmentedVerboseContext(["a"])
+            .CreateAugmentedVerboseContext(["b"])
+            .FormatedVerboseContext.Should().Be("a > b");
+
+    [TestMethod]
+    public void AugmentedVerbose_AtOnceAndInSequence_CombinesInCorrectOrder() =>
+        new LogContextManager()
+            .CreateAugmentedVerboseContext(["a"])
+            .CreateAugmentedVerboseContext(["b", "c"])
+            .CreateAugmentedVerboseContext(["d"])
+            .FormatedVerboseContext.Should().Be("a > b > c > d");
+}