(GH-90) Relax restriction of one label per issue

Previously GitReleaseManager wasn't able to generate release note for issues with multiple labels.
With this change it's become possible, but additional configuration flag needs to be set.

Author: robertlyson

Source/GitReleaseManager.Tests/ConfigurationTests.cs

@@ -31,5 +31,31 @@ public void Should_Read_Label_Aliases()
             Assert.AreEqual("Baz", config.LabelAliases[1].Header);
             Assert.AreEqual("Qux", config.LabelAliases[1].Plural);
         }
+
+        [Test]
+        public void Many_Labels_For_Issue_Disabled_By_Default()
+        {
+            // Given
+            var text = Resources.Default_Configuration_Yaml;
+
+            // When
+            var config = ConfigSerializer.Read(new StringReader(text));
+
+            // Then
+            Assert.AreEqual(false, config.IssueLabelsMany);
+        }
+
+        [Test]
+        public void Should_Read_Many_Labels_Issue()
+        {
+            // Given
+            var text = Resources.Many_Labels_For_Issue_Configuration_Yaml;
+
+            // When
+            var config = ConfigSerializer.Read(new StringReader(text));
+
+            // Then
+            Assert.AreEqual(true, config.IssueLabelsMany);
+        }
     }
 }

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.NoCommitsWrongIssueLabel.approved.txt

@@ -0,0 +1 @@
+ 

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.NoCommitsWrongIssueLabel.received.txt

@@ -0,0 +1,3 @@
+As part of this release we had [1 issue](https://github.com/FakeRepository/issues/issues?milestone=0&state=closed) closed.
+
+

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.SomeCommitsWrongIssueLabel.approved.txt

@@ -0,0 +1 @@
+ 

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.SomeCommitsWrongIssueLabel.received.txt

@@ -0,0 +1,3 @@
+As part of this release we had [5 commits](https://github.com/TestUser/FakeRepository/commits/1.2.3) which resulted in [1 issue](https://github.com/FakeRepository/issues/issues?milestone=0&state=closed) being closed.
+
+

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.SomeIssuesWithMultipleLabelsWhenManyLabelsDisabled.approved.txt

@@ -0,0 +1,9 @@
+As part of this release we had [5 commits](https://github.com/TestUser/FakeRepository/commits/1.2.3) which resulted in [2 issues](https://github.com/FakeRepository/issues/issues?milestone=0&state=closed) being closed.
+
+
+__Help Wanteds__
+
+- [__#1__](http://example.com/1) Issue 1
+- [__#2__](http://example.com/2) Issue 2
+
+ 

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.SomeIssuesWithMultipleLabelsWhenManyLabelsEnabled.approved.txt

@@ -0,0 +1,12 @@
+As part of this release we had [5 commits](https://github.com/TestUser/FakeRepository/commits/1.2.3) which resulted in [2 issues](https://github.com/FakeRepository/issues/issues?milestone=0&state=closed) being closed.
+
+
+__Bug__
+
+- [__#1__](http://example.com/1) Issue 1
+
+__Help Wanteds__
+
+- [__#1__](http://example.com/1) Issue 1
+- [__#2__](http://example.com/2) Issue 2
+

Source/GitReleaseManager.Tests/ReleaseNotesBuilderTests.cs

@@ -110,6 +110,19 @@ public void NoCommitsWrongIssueLabel()
             Assert.Throws<AggregateException>(() => AcceptTest(0, CreateIssue(1, "Test")));
         }
 
+        [Test]
+        public void SomeIssuesWithMultipleLabelsWhenManyLabelsDisabled()
+        {
+            Assert.Throws<AggregateException>(() => AcceptTest(5, CreateIssue(1, "Help Wanted", "Bug"), CreateIssue(2, "Help Wanted")));
+        }
+
+        [Test]
+        public void SomeIssuesWithMultipleLabelsWhenManyLabelsEnabled()
+        {
+            var config = new Config {IssueLabelsMany = true};
+            AcceptTest(5, config, CreateIssue(1, "Help Wanted", "Bug", "Internal Refactoring"), CreateIssue(2, "Help Wanted"));
+        }
+
         [Test]
         public void SomeCommitsWrongIssueLabel()
         {

Source/GitReleaseManager.Tests/Resources.Designer.cs

@@ -149,4 +149,38 @@ issue-labels-alias:
       header:  Baz
       plural:  Qux</value>
   </data>
+  <data name="Many_Labels_For_Issue_Configuration_Yaml" xml:space="preserve">
+    <value>create:
+  include-footer: false
+  footer-heading:
+  footer-content:
+  footer-includes-milestone: false
+  milestone-replace-text:
+  
+export:
+  include-created-date-in-title: false
+  created-date-string-format:
+  perform-regex-removal: false
+  regex-text:
+  multiline-regex: false
+  
+issue-labels-include:
+- Bug
+- Feature
+- Improvement
+
+issue-labels-exclude:
+- Internal Refactoring
+
+issue-labels-alias:
+    - name:    Bug
+      header:  Foo
+      plural:  Bar
+
+    - name:    Improvement
+      header:  Baz
+      plural:  Qux
+
+issue-labels-many: true</value>
+  </data>
 </root>