/*
* Copyright (c) 2013, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.eclipse.org/legal/epl-v10.html
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.dart.engine.services.internal.refactoring;
import com.google.dart.engine.ast.CompilationUnit;
import com.google.dart.engine.element.ExecutableElement;
import com.google.dart.engine.services.change.Change;
import com.google.dart.engine.services.refactoring.ConvertMethodToGetterRefactoring;
import com.google.dart.engine.services.status.RefactoringStatus;
import com.google.dart.engine.services.status.RefactoringStatusSeverity;
import com.google.dart.engine.source.Source;
/**
* Test for {@link ConvertMethodToGetterRefactoringImpl}.
*/
public class ConvertMethodToGetterRefactoringImplTest extends RefactoringImplTest {
private ExecutableElement selectionElement;
private ConvertMethodToGetterRefactoringImpl refactoring;
private RefactoringStatus refactoringStatus;
private Change refactoringChange;
public void test_access() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" int test() => 42;",
"}");
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// check
assertEquals("Convert Method to Getter", refactoring.getRefactoringName());
}
public void test_FunctionElement() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int test() => 42;",
"main() {",
" var v = test();",
"}");
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int get test => 42;",
"main() {",
" var v = test;",
"}");
}
public void test_FunctionElement_noReturnType() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"test() => 42;",
"main() {",
" var v = test();",
"}");
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"get test => 42;",
"main() {",
" var v = test;",
"}");
}
public void test_ignoreSetter() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" test() => 42;",
" set test(x) {}",
"}",
"main() {",
" A a = new A();",
" a.test = 0;",
" var v = a.test();",
"}");
selectionElement = findIdentifierElement("test() => 42");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" get test => 42;",
" set test(x) {}",
"}",
"main() {",
" A a = new A();",
" a.test = 0;",
" var v = a.test;",
"}");
}
public void test_initialConditions_bad_alreadyGetter() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" get test => 42;",
"}");
selectionElement = findIdentifierElement("test =>");
createRefactoring();
// check
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Only class method or top-level function can be converted to getter.");
}
public void test_initialConditions_bad_hasParameters() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" test(x) => 42;",
"}");
selectionElement = findIdentifierElement("test(x) =>");
createRefactoring();
// check
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Only method without parameters can be converted to getter.");
}
public void test_initialConditions_bad_localFunction() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" test() => 42;",
"}");
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// check
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Function should be top-level to converted it to getter.");
}
public void test_MethodElement() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" int test() => 42;",
"}",
"main() {",
" A a = new A();",
" var v = a.test();",
"}");
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" int get test => 42;",
"}",
"main() {",
" A a = new A();",
" var v = a.test;",
"}");
}
public void test_MethodElement_processHierarchy() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" test() => 1;",
"}",
"class B extends A {",
" test() => 2;",
"}",
"class C extends B {",
" test() => 3;",
"}",
"class D extends C {",
" test() => 4;",
"}",
"class E extends D {",
" test() => 5;",
"}",
"",
"main() {",
" A a = new E();",
" var v = a.test();",
"}");
selectionElement = findIdentifierElement("test() => 3");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" get test => 1;",
"}",
"class B extends A {",
" get test => 2;",
"}",
"class C extends B {",
" get test => 3;",
"}",
"class D extends C {",
" get test => 4;",
"}",
"class E extends D {",
" get test => 5;",
"}",
"",
"main() {",
" A a = new E();",
" var v = a.test;",
"}");
}
public void test_unitSharedBetweenLibraries() throws Exception {
indexTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int test() => 42;");
Source sourceShared = addSource(
"/shared.dart",
makeSource(
"// filler filler filler filler filler filler filler filler filler filler",
"part of my_lib;",
"foo() {",
" return test();",
"}"));
Source sourceA = addSource(
"/libA.dart",
makeSource(
"// filler filler filler filler filler filler filler filler filler filler",
"library my_lib;",
"import 'Test.dart';",
"part 'shared.dart';"));
Source sourceB = addSource(
"/libB.dart",
makeSource(
"// filler filler filler filler filler filler filler filler filler filler",
"library my_lib;",
"import 'Test.dart';",
"part 'shared.dart';"));
CompilationUnit sharedUnitA = analysisContext.resolveCompilationUnit(sourceShared, sourceA);
CompilationUnit sharedUnitB = analysisContext.resolveCompilationUnit(sourceShared, sourceB);
indexUnit(sharedUnitA);
indexUnit(sharedUnitB);
selectionElement = findIdentifierElement("test() =>");
createRefactoring();
// do refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int get test => 42;");
assertChangeResult(
refactoringChange,
sourceShared,
makeSource(
"// filler filler filler filler filler filler filler filler filler filler",
"part of my_lib;",
"foo() {",
" return test;",
"}"));
}
/**
* Checks that all conditions are <code>OK</code> and applying {@link Change} to the
* {@link #testUnit} is same source as given lines.
*/
protected final void assertSuccessfulRefactoring(String... lines) throws Exception {
assertRefactoringStatusOK(refactoringStatus);
refactoringChange = refactoring.createChange(pm);
assertTestChangeResult(refactoringChange, makeSource(lines));
}
@Override
protected void tearDown() throws Exception {
selectionElement = null;
refactoring = null;
refactoringStatus = null;
refactoringChange = null;
super.tearDown();
}
/**
* Creates {@link ConvertMethodToGetterRefactoring} in {@link #refactoring}.
*/
private void createRefactoring() throws Exception {
refactoring = new ConvertMethodToGetterRefactoringImpl(searchEngine, selectionElement);
// prepare status
refactoringStatus = refactoring.checkAllConditions(pm);
}
}