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Unified Diff: pkg/analyzer_plugin/test/support/abstract_single_unit.dart

Issue 2872813002: Add support for creating source ranges (Closed)
Patch Set: Created 3 years, 7 months ago
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Index: pkg/analyzer_plugin/test/support/abstract_single_unit.dart
diff --git a/pkg/analyzer_plugin/test/support/abstract_single_unit.dart b/pkg/analyzer_plugin/test/support/abstract_single_unit.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7faabe2470382c0b719e30a6da6bc3c526e6302a
--- /dev/null
+++ b/pkg/analyzer_plugin/test/support/abstract_single_unit.dart
@@ -0,0 +1,115 @@
+// Copyright (c) 2017, 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.
+
+import 'dart:async';
+
+import 'package:analyzer/dart/ast/ast.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/error/error.dart';
+import 'package:analyzer/src/dart/ast/utilities.dart';
+import 'package:analyzer/src/dart/error/hint_codes.dart';
+import 'package:analyzer/src/generated/java_engine.dart';
+import 'package:analyzer/src/generated/source.dart';
+import 'package:test/test.dart';
+
+import 'abstract_context.dart';
+
+class AbstractSingleUnitTest extends AbstractContextTest {
+ bool verifyNoTestUnitErrors = true;
+
+ String testCode;
+ String testFile = '/test.dart';
+ Source testSource;
+ CompilationUnit testUnit;
+ CompilationUnitElement testUnitElement;
+ LibraryElement testLibraryElement;
+
+ void addTestSource(String code, [Uri uri]) {
+ testCode = code;
+ testSource = addSource(testFile, code, uri);
+ }
+
+ Element findElement(String name, [ElementKind kind]) {
+ return findChildElement(testUnitElement, name, kind);
+ }
+
+ int findEnd(String search) {
+ return findOffset(search) + search.length;
+ }
+
+ /**
+ * Returns the [SimpleIdentifier] at the given search pattern.
+ */
+ SimpleIdentifier findIdentifier(String search) {
+ return findNodeAtString(search, (node) => node is SimpleIdentifier);
+ }
+
+ AstNode findNodeAtOffset(int offset, [Predicate<AstNode> predicate]) {
+ AstNode result = new NodeLocator(offset).searchWithin(testUnit);
+ if (result != null && predicate != null) {
+ result = result.getAncestor(predicate);
+ }
+ return result;
+ }
+
+ AstNode findNodeAtString(String search, [Predicate<AstNode> predicate]) {
+ int offset = findOffset(search);
+ return findNodeAtOffset(offset, predicate);
+ }
+
+ Element findNodeElementAtString(String search,
+ [Predicate<AstNode> predicate]) {
+ AstNode node = findNodeAtString(search, predicate);
+ if (node == null) {
+ return null;
+ }
+ return ElementLocator.locate(node);
+ }
+
+ int findOffset(String search) {
+ int offset = testCode.indexOf(search);
+ expect(offset, isNonNegative, reason: "Not found '$search' in\n$testCode");
+ return offset;
+ }
+
+ int getLeadingIdentifierLength(String search) {
+ int length = 0;
+ while (length < search.length) {
+ int c = search.codeUnitAt(length);
+ if (c >= 'a'.codeUnitAt(0) && c <= 'z'.codeUnitAt(0)) {
+ length++;
+ continue;
+ }
+ if (c >= 'A'.codeUnitAt(0) && c <= 'Z'.codeUnitAt(0)) {
+ length++;
+ continue;
+ }
+ if (c >= '0'.codeUnitAt(0) && c <= '9'.codeUnitAt(0)) {
+ length++;
+ continue;
+ }
+ break;
+ }
+ return length;
+ }
+
+ Future<Null> resolveTestUnit(String code) async {
+ addTestSource(code);
+ var result = await driver.getResult(testFile);
+ testUnit = (result).unit;
+ if (verifyNoTestUnitErrors) {
+ expect(result.errors.where((AnalysisError error) {
+ return error.errorCode != HintCode.DEAD_CODE &&
+ error.errorCode != HintCode.UNUSED_CATCH_CLAUSE &&
+ error.errorCode != HintCode.UNUSED_CATCH_STACK &&
+ error.errorCode != HintCode.UNUSED_ELEMENT &&
+ error.errorCode != HintCode.UNUSED_FIELD &&
+ error.errorCode != HintCode.UNUSED_IMPORT &&
+ error.errorCode != HintCode.UNUSED_LOCAL_VARIABLE;
+ }), isEmpty);
+ }
+ testUnitElement = testUnit.element;
+ testLibraryElement = testUnitElement.library;
+ }
+}
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