[analysis_server] Add a test for signature help of extension type method
Change-Id: I3e4d54e63f171dfd73b11e1997feb4dba7e4b76a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/324684
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
diff --git a/pkg/analysis_server/test/lsp/signature_help_test.dart b/pkg/analysis_server/test/lsp/signature_help_test.dart
index 4f6e51e..9883fea 100644
--- a/pkg/analysis_server/test/lsp/signature_help_test.dart
+++ b/pkg/analysis_server/test/lsp/signature_help_test.dart
@@ -24,7 +24,7 @@
Future<void> testSignature(
String fileContent,
String expectedLabel,
- String expectedDoc,
+ String? expectedDoc,
List<ParameterInformation> expectedParams, {
MarkupKind? expectedFormat = MarkupKind.Markdown,
SignatureHelpContext? context,
@@ -41,16 +41,19 @@
expect(sig.label, equals(expectedLabel));
expect(sig.parameters, equals(expectedParams));
- // Test the format matches the tests expectation.
- // For clients that don't support MarkupContent it'll be a plain string,
- // but otherwise it'll be a MarkupContent of type PlainText or Markdown.
- final doc = sig.documentation!;
- if (expectedFormat == null) {
- // Plain string.
- expect(doc.valueEquals(expectedDoc), isTrue);
- } else {
- final expected = MarkupContent(kind: expectedFormat, value: expectedDoc);
- expect(doc.valueEquals(expected), isTrue);
+ if (expectedDoc != null) {
+ // Test the format matches the tests expectation.
+ // For clients that don't support MarkupContent it'll be a plain string,
+ // but otherwise it'll be a MarkupContent of type PlainText or Markdown.
+ final doc = sig.documentation!;
+ if (expectedFormat == null) {
+ // Plain string.
+ expect(doc.valueEquals(expectedDoc), isTrue);
+ } else {
+ final expected =
+ MarkupContent(kind: expectedFormat, value: expectedDoc);
+ expect(doc.valueEquals(expected), isTrue);
+ }
}
}
}
@@ -192,6 +195,35 @@
expect(res, isNull);
}
+ Future<void> test_extensionType() async {
+ final content = '''
+class A {
+ void f(int a) {}
+}
+
+extension type E(A a) {
+ void f(int e) {}
+}
+
+void f() {
+ final e = E(A());
+ e.f(^);
+}
+''';
+ final initialAnalysis = waitForAnalysisComplete();
+ await initialize();
+ await openFile(mainFileUri, withoutMarkers(content));
+ await initialAnalysis;
+ await testSignature(
+ content,
+ 'f(int e)',
+ null,
+ [
+ ParameterInformation(label: 'int e'),
+ ],
+ );
+ }
+
Future<void> test_formats_markdown() async {
final content = '''
/// Does foo.
