'Inline Local' refactoring.

pkg/analysis_server/test/services/refactoring/inline_local_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.refactoring.inline_local;
+
+import 'package:analysis_server/src/protocol.dart' hide Element;
+import 'package:analysis_server/src/services/refactoring/inline_local.dart';
+import 'package:analysis_server/src/services/refactoring/refactoring.dart';
+import 'package:analysis_testing/reflective_tests.dart';
+import 'package:analyzer/src/generated/ast.dart';
+import 'package:analyzer/src/generated/element.dart';
+import 'package:unittest/unittest.dart';
+
+import 'abstract_refactoring.dart';
+
+
+main() {
+  groupSep = ' | ';
+  runReflectiveTests(InlineLocalTest);
+}
+
+
+@ReflectiveTestCase()
+class InlineLocalTest extends RefactoringTest {
+  InlineLocalRefactoringImpl refactoring;
+
+  test_OK_cascade_intoCascade() {
+    indexTestUnit(r'''
+class A {
+  foo() {}
+  bar() {}
+}
+main() {
+  A test = new A()..foo();
+  test..bar();
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring(r'''
+class A {
+  foo() {}
+  bar() {}
+}
+main() {
+  new A()..foo()..bar();
+}
+''');
+  }
+
+  test_OK_cascade_intoNotCascade() {
+    indexTestUnit(r'''
+class A {
+  foo() {}
+  bar() {}
+}
+main() {
+  A test = new A()..foo();
+  test.bar();
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring(r'''
+class A {
+  foo() {}
+  bar() {}
+}
+main() {
+  (new A()..foo()).bar();
+}
+''');
+  }
+
+  test_OK_intoStringInterpolation() {
+    indexTestUnit(r'''
+main() {
+  int test = 1 + 2;
+  print('test = $test');
+  print('test = ${test}');
+  print('test = ${process(test)}');
+}
+process(x) {}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring(r'''
+main() {
+  print('test = ${1 + 2}');
+  print('test = ${1 + 2}');
+  print('test = ${process(1 + 2)}');
+}
+process(x) {}
+''');
+  }
+
+  /**
+   * <p>
+   * https://code.google.com/p/dart/issues/detail?id=18587
+   */
+  test_OK_keepNextCommentedLine() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+  // foo
+  print(test);
+  // bar
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring('''
+main() {
+  // foo
+  print(1 + 2);
+  // bar
+}
+''');
+  }
+
+  test_OK_noUsages_1() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+  print(0);
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring('''
+main() {
+  print(0);
+}
+''');
+  }
+
+  test_OK_noUsages_2() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring('''
+main() {
+}
+''');
+  }
+
+  test_OK_oneUsage() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+  print(test);
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring('''
+main() {
+  print(1 + 2);
+}
+''');
+  }
+
+  test_OK_twoUsages() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+  print(test);
+  print(test);
+}
+''');
+    _createRefactoring('test =');
+    // validate change
+    return assertSuccessfulRefactoring('''
+main() {
+  print(1 + 2);
+  print(1 + 2);
+}
+''');
+  }
+
+  test_access() {
+    indexTestUnit('''
+main() {
+  int test = 1 + 2;
+  print(test);
+  print(test);
+}
+''');
+    _createRefactoring('test =');
+    expect(refactoring.refactoringName, 'Inline Local Variable');
+    // check initial conditions and access
+    return refactoring.checkInitialConditions().then((_) {
+      expect(refactoring.referenceCount, 2);
+    });
+  }
+
+  test_bad_selectionVariable_hasAssignments_1() {
+    indexTestUnit(r'''
+main() {
+  int test = 0;
+  test = 1;
+}
+''');
+    _createRefactoring('test = 0');
+    return refactoring.checkInitialConditions().then((status) {
+      assertRefactoringStatus(
+          status,
+          RefactoringProblemSeverity.FATAL,
+          expectedContextSearch: 'test = 1');
+    });
+  }
+
+  test_bad_selectionVariable_hasAssignments_2() {
+    indexTestUnit(r'''
+main() {
+  int test = 0;
+  test += 1;
+}
+''');
+    _createRefactoring('test = 0');
+    return refactoring.checkInitialConditions().then((status) {
+      assertRefactoringStatus(
+          status,
+          RefactoringProblemSeverity.FATAL,
+          expectedContextSearch: 'test += 1');
+    });
+  }
+
+  test_bad_selectionVariable_notInBlock() {
+    indexTestUnit(r'''
+main() {
+  if (true)
+    int test = 0;
+}
+''');
+    _createRefactoring('test = 0');
+    return refactoring.checkInitialConditions().then((status) {
+      assertRefactoringStatus(status, RefactoringProblemSeverity.FATAL);
+    });
+  }
+
+  test_bad_selectionVariable_notInitialized() {
+    indexTestUnit(r'''
+main() {
+  int test;
+}
+''');
+    _createRefactoring('test;');
+    return refactoring.checkInitialConditions().then((status) {
+      assertRefactoringStatus(status, RefactoringProblemSeverity.FATAL);
+    });
+  }
+
+  void _createRefactoring(String search) {
+    SimpleIdentifier identifier = findIdentifier(search);
+    LocalVariableElement element = identifier.bestElement;
+    refactoring = new InlineLocalRefactoring(searchEngine, testUnit, element);
+  }
+}