Add new tests

Author: ToddGrun

src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Completion/DirectiveAttributeCompletionItemProviderTest.AttributeNames.cs

@@ -69,6 +69,32 @@ public void GetCompletionItems_OnDirectiveAttributeName_bind_ReturnsCompletions(
         AssertContains(completions, "bind", "@bind", ["="]);
     }
 
+    [Fact]
+    public void GetCompletionItems_OnDirectiveAttributeName_bind_ReturnsParameterCompletions()
+    {
+        // Arrange
+        var context = CreateRazorCompletionContext("<input @$$  />");
+
+        // Act
+        var completions = _provider.GetCompletionItems(context);
+
+        // Assert
+        AssertContainsParameter(completions, "bind-value:format", "@bind-value:format", ["="]);
+    }
+
+    [Fact]
+    public void GetCompletionItems_OnDirectiveAttributeName_bind_ReturnsParameterSnippetCompletions()
+    {
+        // Arrange
+        var context = CreateRazorCompletionContext("<input @$$  />");
+
+        // Act
+        var completions = _provider.GetCompletionItems(context);
+
+        // Assert
+        AssertContainsParameter(completions, "bind-value:format", "@bind-value:format", ["="]);
+    }
+
     [Fact]
     public void GetCompletionItems_OnDirectiveAttributeName_attributes_ReturnsCompletions()
     {
@@ -195,6 +221,19 @@ public void GetAttributeCompletions_SelectedDirectiveAttribute_IsIncludedInCompl
         AssertContains(completions, "bind=\"$0\"", "@bind", ["="]);
     }
 
+    [Fact]
+    public void GetAttributeCompletions_Parameter_IsIncludedInCompletions()
+    {
+        // Arrange
+        var context = GetDefaultDirectivateAttributeCompletionContext("@bind");
+
+        // Act
+        var completions = DirectiveAttributeCompletionItemProvider.GetAttributeCompletions("input", context, _defaultTagHelperContext);
+
+        // Assert
+        AssertContains(completions, "bind-value=\"$0\"", "@bind-value", ["="]);
+    }
+
     [Fact]
     public void GetAttributeCompletions_NonIndexer_ReturnsCompletion()
     {

src/Razor/test/Microsoft.CodeAnalysis.Razor.Workspaces.Test/Completion/DirectiveAttributeCompletionItemProviderTest.ParameterNames.cs

@@ -92,6 +92,43 @@ public void GetAttributeParameterCompletions_ReturnsCompletion()
         AssertContains(completions, "format");
     }
 
+    [Fact]
+    public void GetAttributeParameterCompletions_ReturnsSnippetCompletion()
+    {
+        // Arrange
+        var context = GetDefaultDirectiveAttributeCompletionContext("@bind") with
+        {
+            UseSnippets = true,
+        };
+
+        // Act
+        var completions = DirectiveAttributeCompletionItemProvider.GetAttributeCompletions("input", context, _defaultTagHelperContext);
+
+        // Assert
+        AssertContains(completions, "format=\"$0\"", "format");
+    }
+
+    [Fact]
+    public void GetCompletionItems_OnDirectiveAttributeName_bind_ReturnsSameParameterCompletions()
+    {
+        // Arrange
+        var contextAttributeName = CreateRazorCompletionContext("<input @$$  />");
+        var contextParameterName = CreateRazorCompletionContext("<input @bind-value:$$  />");
+
+        // Act
+        var completionsAttributeName = _provider.GetCompletionItems(contextAttributeName);
+        var completionsParameterName = _provider.GetCompletionItems(contextParameterName);
+
+        // Assert
+        var parameterNamesFromAttributeCompletions = completionsAttributeName
+            .Where(c => c.DisplayText.StartsWith("@bind-value:"))
+            .SelectAsArray(c => c.DisplayText["@bind-Value:".Length..]);
+        var parameterNamesFromParameterCompletions = completionsParameterName
+            .SelectAsArray(c => c.DisplayText);
+
+        AssertEx.SequenceEqual(parameterNamesFromAttributeCompletions, parameterNamesFromParameterCompletions);
+    }
+
     [Fact]
     public void GetAttributeParameterCompletions_BaseDirectiveAttributeAndParameterVariationsExist_ExcludesCompletion()
     {