show all available import completion suggestions - fixes #23955

pkg/analysis_server/test/services/completion/import_uri_contributor_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.services.completion.contributor.dart.importuri;
 
 import 'dart:io';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/completion/import_uri_contributor.dart';
 import 'package:path/path.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
 import 'completion_test_util.dart';
+import 'package:analysis_server/src/services/completion/dart_completion_manager.dart';
 
 main() {
   initializeTestEnvironment();
   defineReflectiveTests(ImportUriContributorTest);
 }
 
 @reflectiveTest
 class ImportUriContributorTest extends AbstractCompletionTest {
   @override
   void setUpContributor() {
@@ skipping 17 matching lines @@
     assertSuggest('dart:', csKind: CompletionSuggestionKind.IMPORT);
     assertSuggest('package:', csKind: CompletionSuggestionKind.IMPORT);
   }
 
   test_import_dart() {
     addTestSource('import "d^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 1);
     expect(request.replacementLength, 1);
     assertSuggest('dart:', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('dart:core');
+    assertSuggest('dart:core',
+        csKind: CompletionSuggestionKind.IMPORT, relevance: DART_RELEVANCE_LOW);
     assertNotSuggested('dart:_internal');
     assertSuggest('dart:async', csKind: CompletionSuggestionKind.IMPORT);
     assertSuggest('dart:math', csKind: CompletionSuggestionKind.IMPORT);
   }
 
   test_import_dart2() {
     addTestSource('import "dart:async"; import "d^"');
     computeFast();
     expect(request.replacementOffset, completionOffset - 1);
     expect(request.replacementLength, 1);
     assertSuggest('dart:', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('dart:core');
+    assertSuggest('dart:core',
+        csKind: CompletionSuggestionKind.IMPORT, relevance: DART_RELEVANCE_LOW);
     assertNotSuggested('dart:_internal');
-    assertNotSuggested('dart:async');
+    assertSuggest('dart:async', csKind: CompletionSuggestionKind.IMPORT);
     assertSuggest('dart:math', csKind: CompletionSuggestionKind.IMPORT);
   }
 
   test_import_file() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('import "^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset);
     expect(request.replacementLength, 0);
     assertNotSuggested('completion.dart');
     assertSuggest('other.dart', csKind: CompletionSuggestionKind.IMPORT);
     assertNotSuggested('foo');
-    assertSuggest('foo${separator}', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('foo${separator}bar.dart');
-    assertNotSuggested('..${separator}blat.dart');
+    assertSuggest('foo/', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/bar.dart');
+    assertNotSuggested('../blat.dart');
   }
 
   test_import_file2() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('import "..^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 2);
     expect(request.replacementLength, 2);
     assertNotSuggested('completion.dart');
     assertSuggest('other.dart', csKind: CompletionSuggestionKind.IMPORT);
     assertNotSuggested('foo');
-    assertSuggest('foo${separator}', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('foo${separator}bar.dart');
-    assertNotSuggested('..${separator}blat.dart');
+    assertSuggest('foo/', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/bar.dart');
+    assertNotSuggested('../blat.dart');
   }
 
   test_import_file_child() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('import "foo/^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 4);
     expect(request.replacementLength, 4);
     assertNotSuggested('completion.dart');
     assertNotSuggested('other.dart');
     assertNotSuggested('foo');
-    assertNotSuggested('foo${separator}');
-    assertSuggest('foo${separator}bar.dart',
-        csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('..${separator}blat.dart');
+    assertNotSuggested('foo/');
+    assertSuggest('foo/bar.dart', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('../blat.dart');
   }
 
   test_import_file_parent() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('import "../^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 3);
     expect(request.replacementLength, 3);
     assertNotSuggested('completion.dart');
     assertNotSuggested('other.dart');
     assertNotSuggested('foo');
-    assertNotSuggested('foo${separator}');
-    assertNotSuggested('foo${separator}bar.dart');
-    assertSuggest('..${separator}blat.dart',
-        csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/');
+    assertNotSuggested('foo/bar.dart');
+    assertSuggest('../blat.dart', csKind: CompletionSuggestionKind.IMPORT);
   }
 
   test_import_package() {
     addPackageSource('foo', 'foo.dart', 'library foo;');
     addPackageSource('foo', 'baz/too.dart', 'library too;');
     addPackageSource('bar', 'bar.dart', 'library bar;');
     addTestSource('import "p^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 1);
     expect(request.replacementLength, 1);
@@ skipping 53 matching lines @@
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('library x; part "^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset);
     expect(request.replacementLength, 0);
     assertNotSuggested('completion.dart');
     assertSuggest('other.dart', csKind: CompletionSuggestionKind.IMPORT);
     assertNotSuggested('foo');
-    assertSuggest('foo${separator}', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('foo${separator}bar.dart');
-    assertNotSuggested('..${separator}blat.dart');
+    assertSuggest('foo/', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/bar.dart');
+    assertNotSuggested('../blat.dart');
   }
 
   test_part_file2() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('library x; part "..^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 2);
     expect(request.replacementLength, 2);
     assertNotSuggested('completion.dart');
     assertSuggest('other.dart', csKind: CompletionSuggestionKind.IMPORT);
     assertNotSuggested('foo');
-    assertSuggest('foo${separator}', csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('foo${separator}bar.dart');
-    assertNotSuggested('..${separator}blat.dart');
+    assertSuggest('foo/', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/bar.dart');
+    assertNotSuggested('../blat.dart');
   }
 
   test_part_file_child() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('library x; part "foo/^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 4);
     expect(request.replacementLength, 4);
     assertNotSuggested('completion.dart');
     assertNotSuggested('other.dart');
     assertNotSuggested('foo');
-    assertNotSuggested('foo${separator}');
-    assertSuggest('foo${separator}bar.dart',
-        csKind: CompletionSuggestionKind.IMPORT);
-    assertNotSuggested('..${separator}blat.dart');
+    assertNotSuggested('foo/');
+    assertSuggest('foo/bar.dart', csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('../blat.dart');
   }
 
   test_part_file_parent() {
     // TODO(danrubel) fix file uri suggestions on Windows
     if (Platform.isWindows) return;
     testFile = '/proj/completion.dart';
     addSource('/proj/other.dart', 'library other;');
     addSource('/proj/foo/bar.dart', 'library bar;');
     addSource('/blat.dart', 'library blat;');
     addTestSource('library x; part "../^" import');
     computeFast();
     expect(request.replacementOffset, completionOffset - 3);
     expect(request.replacementLength, 3);
     assertNotSuggested('completion.dart');
     assertNotSuggested('other.dart');
     assertNotSuggested('foo');
-    assertNotSuggested('foo${separator}');
-    assertNotSuggested('foo${separator}bar.dart');
-    assertSuggest('..${separator}blat.dart',
-        csKind: CompletionSuggestionKind.IMPORT);
+    assertNotSuggested('foo/');
+    assertNotSuggested('foo/bar.dart');
+    assertSuggest('../blat.dart', csKind: CompletionSuggestionKind.IMPORT);
   }
 }