added source changed test

simonrozsival · Apr 26, 2024 · bb8c8cf · bb8c8cf
1 parent 7d1b69c
commit bb8c8cf
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/src/Controls/tests/BindingSourceGen.UnitTests/IncrementalGenerationTests.cs b/src/Controls/tests/BindingSourceGen.UnitTests/IncrementalGenerationTests.cs
@@ -39,6 +39,24 @@ public void DoesNotRegenerateCodeWhenNoChanges()
         RunGeneratorOnTwoSourcesAndVerifyResults(source, source, reason => Assert.True(reason == IncrementalStepRunReason.Unchanged || reason == IncrementalStepRunReason.Cached));
     }
 
+    [Fact]
+    public void DoesRegenerateCodeWhenSourceChanged()
+    {
+        var source = """
+        using Microsoft.Maui.Controls;
+        var label = new Label();
+        label.SetBinding(Label.RotationProperty, static (string s) => s.Length);
+        """;
+
+        var newSource = """
+        using Microsoft.Maui.Controls;
+        var label = new Label();
+        label.SetBinding(Label.RotationProperty, static (string s) => s);
+        """;
+
+        RunGeneratorOnTwoSourcesAndVerifyResults(source, newSource, reason => Assert.True(reason == IncrementalStepRunReason.Modified));
+    }
+
     [Fact]
     public void DoesRegenerateCodeWhenNewCodeInsertedAbove()
     {
@@ -102,6 +120,7 @@ private static void RunGeneratorOnTwoSourcesAndVerifyResults(string source1, str
             .SelectMany(x => x.Outputs)
             .Select(x => x.Reason);
 
+        Console.WriteLine(string.Join(", ", newReasons));
         Assert.All(newReasons, reason => assert(reason));
     }