/*
* 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.services.assist.AssistContext;
import com.google.dart.engine.services.change.Change;
import com.google.dart.engine.services.refactoring.ExtractLocalRefactoring;
import com.google.dart.engine.services.status.RefactoringStatus;
import com.google.dart.engine.services.status.RefactoringStatusSeverity;
import static org.fest.assertions.Assertions.assertThat;
/**
* Test for {@link ExtractLocalRefactoringImpl}.
*/
public class ExtractLocalRefactoringImplTest extends RefactoringImplTest {
private ExtractLocalRefactoringImpl refactoring;
private int selectionStart = -1;
private int selectionEnd = -1;
private String localName = "res";
private boolean replaceAllOccurences = true;
private RefactoringStatus refactoringStatus;
public void test_bad_assignmentLeftHandSize() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"f(p) {",
" var v = 0;",
" v = 1;",
"}");
// create refactoring
selectionStart = findOffset("v = 1");
selectionEnd = findOffset(" = 1;");
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Cannot extract the left-hand side of an assignment.");
}
public void test_bad_methodName_reference() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" main();",
"}",
"");
selectionStart = findOffset("main();");
selectionEnd = selectionStart + "main".length();
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Cannot extract a single method name.");
}
public void test_bad_nameOfProperty_prefixedIdentifier() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"f(p) {",
" p.value = 1;",
" print(p.value); // marker",
"}",
"print(x) {}");
// create refactoring
selectionStart = findOffset("value);");
selectionEnd = findOffset("); // marker");
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Can not extract name part of a property access.");
}
public void test_bad_nameOfProperty_propertyAccess() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"f(p) {",
" foo().value = 1;",
" print(foo().value); // marker",
"}",
"foo() {}",
"print(x) {}");
// create refactoring
selectionStart = findOffset("value);");
selectionEnd = findOffset("); // marker");
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Can not extract name part of a property access.");
}
public void test_bad_namePartOfDeclaration_variable() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int vvv = 0;",
"}",
"");
selectionStart = findOffset("vvv =");
selectionEnd = selectionStart + "vvv".length();
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Cannot extract the name part of a declaration.");
}
public void test_bad_stringSelection_leadingQuote() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var vvv = 'abc';",
"}",
"");
setSelectionString("'a");
selectionEnd--;
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Cannot extract only leading or trailing quote of string literal.");
}
public void test_bad_stringSelection_trailingQuote() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var vvv = 'abc';",
"}",
"");
setSelectionString("c'");
selectionStart++;
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Cannot extract only leading or trailing quote of string literal.");
}
public void test_checkFinalConditions_sameVariable_after() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2;",
" var res;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// conflicting name
{
refactoring.setLocalName("res");
refactoringStatus = refactoring.checkFinalConditions(pm);
assert_warning_alreadyDefined();
}
// unique name
{
refactoring.setLocalName("uniqueName");
refactoringStatus = refactoring.checkFinalConditions(pm);
assertRefactoringStatusOK(refactoringStatus);
}
}
public void test_checkFinalConditions_sameVariable_before() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res;",
" int a = 1 + 2;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// conflicting name
{
refactoring.setLocalName("res");
refactoringStatus = refactoring.checkAllConditions(pm);
assert_warning_alreadyDefined();
}
// unique name
{
refactoring.setLocalName("uniqueName");
refactoringStatus = refactoring.checkAllConditions(pm);
assertRefactoringStatusOK(refactoringStatus);
}
}
public void test_checkFinalConditions_variableName_warning() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2;",
"}");
// create refactoring
setSelectionString("1 + 2");
localName = "Res";
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.WARNING,
"Variable name should start with a lowercase letter.");
}
public void test_checkInitialConditions_notPartOfFunction() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int a = 1 + 2;",
"");
// create refactoring
selectionStart = findOffset("1 + 2");
selectionEnd = findOffset(";");
createRefactoring();
// check conditions
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.FATAL,
"Expression inside of function must be selected to activate this refactoring.");
}
public void test_checkLocalName() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// null
assertRefactoringStatus(
refactoring.checkLocalName(null),
RefactoringStatusSeverity.ERROR,
"Variable name must not be null.");
// empty
assertRefactoringStatus(
refactoring.checkLocalName(""),
RefactoringStatusSeverity.ERROR,
"Variable name must not be empty.");
// warning
assertRefactoringStatus(
refactoring.checkLocalName("Res"),
RefactoringStatusSeverity.WARNING,
"Variable name should start with a lowercase letter.");
// OK
assertRefactoringStatusOK(refactoring.checkLocalName("res"));
}
public void test_completeStatementExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" Object o;",
" o.toString();",
"}");
// create refactoring
setSelectionString("o.toString()");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" Object o;",
" var res = o.toString();",
"}");
}
public void test_const_argument_inConstInstanceCreation() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" const A(int a, int b);",
"}",
"main() {",
" const A(1, 2);",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" const A(int a, int b);",
"}",
"main() {",
" const res = 1;",
" const A(res, 2);",
"}");
}
public void test_const_element_inBinaryExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const [1 + 2, 3];",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = 1;",
" const [res + 2, 3];",
"}");
}
public void test_const_element_inConditionalExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main(bool b) {",
" const [b ? 1 : 2, 3];",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main(bool b) {",
" const res = 1;",
" const [b ? res : 2, 3];",
"}");
}
public void test_const_element_inConstListLiteral() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const [1, 2];",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = 1;",
" const [res, 2];",
"}");
}
public void test_const_element_inParenthesis() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const [(1), 2];",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = 1;",
" const [(res), 2];",
"}");
}
public void test_const_element_inPrefixExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const [!true, 3];",
"}");
// create refactoring
setSelectionString("true");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = true;",
" const [!res, 3];",
"}");
}
public void test_const_key_inConstMapLiteral() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const {1: 2};",
"}");
// create refactoring
setSelectionString("1");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = 1;",
" const {res: 2};",
"}");
}
public void test_const_value_inConstMapLiteral() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const {1: 2};",
"}");
// create refactoring
setSelectionString("2");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" const res = 2;",
" const {1: res};",
"}");
}
public void test_fragmentExpression_leadingNotWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("+ 2");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_fragmentExpression_leadingPartialSelection() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 111 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("11 + 2");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_fragmentExpression_leadingWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString(" 2 + 3");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 2 + 3;",
" int a = 1 +res + 4;",
"}");
}
public void test_fragmentExpression_notAssociativeOperator() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 - 2 - 3 - 4;",
"}");
// create refactoring
setSelectionString("2 - 3");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_fragmentExpression_OK() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("2 + 3");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 2 + 3;",
" int a = 1 + res + 4;",
"}");
}
public void test_fragmentExpression_trailingNotWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("2 + 3 +");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_fragmentExpression_trailingPartialSelection() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 444;",
"}");
// create refactoring
setSelectionString("2 + 3 + 44");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_fragmentExpression_trailingWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("2 + 3 ");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 2 + 3 ;",
" int a = 1 + res+ 4;",
"}");
}
public void test_getRefactoringName() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" print(1 + 2);",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// access
assertEquals("Extract Local Variable", refactoring.getRefactoringName());
}
public void test_guessNames_fragmentExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class TreeItem {}",
"TreeItem getSelectedItem() => null;",
"process(arg) {}",
"main() {",
" process(111 + 222 + 333 + 444); // marker",
"}");
// create refactoring
setSelectionString("222 + 333");
createRefactoring();
// no guesses
String[] names = refactoring.guessNames();
assertThat(names).isEmpty();
}
public void test_guessNames_singleExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class TreeItem {}",
"TreeItem getSelectedItem() => null;",
"process(arg) {}",
"main() {",
" process(getSelectedItem()); // marker",
"}");
// create refactoring
selectionStart = findOffset("getSelectedItem()); // marker");
selectionEnd = findOffset("); // marker");
createRefactoring();
// check guesses
String[] names = refactoring.guessNames();
assertThat(names).contains("selectedItem", "item", "arg", "treeItem");
}
public void test_guessNames_stringPart() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"f() {",
" var s = 'Hello Bob... welcome to Dart!';",
"}");
// create refactoring
setSelectionString("Hello Bob");
createRefactoring();
// check guesses
String[] names = refactoring.guessNames();
assertThat(names).contains("helloBob", "bob");
}
public void test_hasSeveralOccurrences_false() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
assertFalse(refactoring.hasSeveralOccurrences());
}
public void test_hasSeveralOccurrences_true() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2;",
" int b = 1 + 2;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
assertTrue(refactoring.hasSeveralOccurrences());
}
public void test_occurences_disableOccurences() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" int a = 1 + foo();",
" int b = 2 + foo(); // marker",
"}");
// create refactoring
selectionStart = findOffset(" foo();") + 2;
selectionEnd = findOffset("; // marker");
replaceAllOccurences = false;
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" int a = 1 + foo();",
" var res = foo();",
" int b = 2 + res; // marker",
"}");
}
public void test_occurences_fragmentExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" int a = 11 + 2 + foo() + 3;",
" int b = 12 + 2 + foo() + 3; // marker",
"}");
// create refactoring
selectionStart = findOffset(" 2 +") + 2;
selectionEnd = findOffset("; // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" var res = 2 + foo() + 3;",
" int a = 11 + res;",
" int b = 12 + res; // marker",
"}");
}
public void test_occurences_ignore_assignmentLeftHandSize() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int v = 1;",
" v = 2;",
" print(() {v = 2;});",
" print(1 + (() {v = 2; return 3;})());",
" print(v); // marker",
"}",
"print(x) {}");
// create refactoring
selectionStart = findOffset("v);");
selectionEnd = findOffset("); // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int v = 1;",
" v = 2;",
" print(() {v = 2;});",
" print(1 + (() {v = 2; return 3;})());",
" var res = v;",
" print(res); // marker",
"}",
"print(x) {}");
}
public void test_occurences_ignore_nameOfVariableDeclariton() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int v = 1;",
" print(v); // marker",
"}",
"print(x) {}");
// create refactoring
selectionStart = findOffset("v);");
selectionEnd = findOffset("); // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int v = 1;",
" var res = v;",
" print(res); // marker",
"}",
"print(x) {}");
}
public void test_occurences_singleExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" int a = 1 + foo();",
" int b = 2 + foo(); // marker",
"}");
// create refactoring
selectionStart = findOffset(" foo();") + 2;
selectionEnd = findOffset("; // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" var res = foo();",
" int a = 1 + res;",
" int b = 2 + res; // marker",
"}");
}
public void test_occurences_useDominator() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" if (true) {",
" print(42);",
" } else {",
" print(42);",
" }",
"}");
// create refactoring
selectionStart = findOffset("42");
selectionEnd = findOffset("42);") + "42".length();
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 42;",
" if (true) {",
" print(res);",
" } else {",
" print(res);",
" }",
"}");
}
public void test_occurences_whenComment() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" /*int a = 1 + foo();*/",
" int b = 2 + foo(); // marker",
"}");
// create refactoring
selectionStart = findOffset(" foo();") + 2;
selectionEnd = findOffset("; // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo() => 42;",
"main() {",
" /*int a = 1 + foo();*/",
" var res = foo();",
" int b = 2 + res; // marker",
"}");
}
public void test_occurences_whenSpace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo(String s) => 42;",
"main() {",
" int a = 1 + foo('has space');",
" int b = 2 + foo('has space'); // marker",
"}");
// create refactoring
selectionStart = findOffset(" foo('has space');") + 2;
selectionEnd = findOffset("; // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"int foo(String s) => 42;",
"main() {",
" var res = foo('has space');",
" int a = 1 + res;",
" int b = 2 + res; // marker",
"}");
}
public void test_singleExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" print(1 + 2);",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 1 + 2;",
" print(res);",
"}");
}
public void test_singleExpression_getter() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" int get foo => 42;",
"}",
"main() {",
" A a = new A();",
" int b = 1 + a.foo; // marker",
"}");
// create refactoring
selectionStart = findOffset("a.foo;");
selectionEnd = findOffset("; // marker");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" int get foo => 42;",
"}",
"main() {",
" A a = new A();",
" var res = a.foo;",
" int b = 1 + res; // marker",
"}");
}
public void test_singleExpression_inMethod() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" main() {",
" print(1 + 2);",
" }",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"class A {",
" main() {",
" var res = 1 + 2;",
" print(res);",
" }",
"}");
}
public void test_singleExpression_leadingNotWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 12 + 345; // marker",
"}");
// create refactoring
setSelectionString("+ 345");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_singleExpression_leadingWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2; // marker",
"}");
// create refactoring
setSelectionString(" 1 + 2");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 1 + 2;",
" int a =res; // marker",
"}");
}
/**
* We use here knowledge how exactly <code>1 + 2 + 3 + 4</code> is parsed. We know that
* <code>1 + 2</code> will be separate and complete {@link DartBinaryExpression}, so can be
* handled as single expression.
*/
public void test_singleExpression_partOfBinaryExpression() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 + 3 + 4;",
"}");
// create refactoring
setSelectionString("1 + 2");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 1 + 2;",
" int a = res + 3 + 4;",
"}");
}
public void test_singleExpression_trailingComment() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 12 /*abc*/ + 345;",
"}");
// create refactoring
setSelectionString("12 /*abc*/");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 12 /*abc*/;",
" int a = res + 345;",
"}");
}
public void test_singleExpression_trailingNotWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 12 + 345; // marker",
"}");
// create refactoring
setSelectionString("12 +");
createRefactoring();
// check conditions
assert_fatalError_selection();
}
public void test_singleExpression_trailingWhitespace() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" int a = 1 + 2 ; // marker",
"}");
// create refactoring
setSelectionString("1 + 2 ");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 1 + 2 ;",
" int a = res; // marker",
"}");
}
public void test_stringLiteral_part() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" print('abcdefgh');",
"}");
// create refactoring
setSelectionString("cde");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 'cde';",
" print('ab${res}fgh');",
"}");
}
public void test_stringLiteral_whole() throws Exception {
parseTestUnit(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" print('abc');",
"}");
// create refactoring
setSelectionString("'abc'");
createRefactoring();
// apply refactoring
assertSuccessfulRefactoring(
"// filler filler filler filler filler filler filler filler filler filler",
"main() {",
" var res = 'abc';",
" print(res);",
"}");
}
/**
* 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 {
assertRefactoringStatus(refactoringStatus, RefactoringStatusSeverity.OK, null);
Change change = refactoring.createChange(pm);
assertTestChangeResult(change, makeSource(lines));
}
@Override
protected void tearDown() throws Exception {
refactoring = null;
refactoringStatus = null;
super.tearDown();
}
/**
* Asserts that {@link refactoringStatus} has fatal error caused by selection.
*/
private void assert_fatalError_selection() throws Exception {
RefactoringStatus status = refactoring.checkInitialConditions(pm);
assertRefactoringStatus(
status,
RefactoringStatusSeverity.FATAL,
"Expression must be selected to activate this refactoring.");
}
private void assert_warning_alreadyDefined() {
assertRefactoringStatus(
refactoringStatus,
RefactoringStatusSeverity.WARNING,
"A variable with name 'res' is already defined in the visible scope.");
}
/**
* Creates {@link ExtractLocalRefactoring} in {@link #refactoring}.
*/
private void createRefactoring() throws Exception {
int selectionLength = selectionEnd - selectionStart;
AssistContext context = new AssistContext(
searchEngine,
analysisContext,
null,
testSource,
testUnit,
selectionStart,
selectionLength);
refactoring = new ExtractLocalRefactoringImpl(context);
refactoring.setLocalName(localName);
refactoring.setReplaceAllOccurrences(replaceAllOccurences);
// prepare status
refactoringStatus = refactoring.checkAllConditions(pm);
}
/**
* Prints result of {@link #refactoring} in the way ready to parse into test expectations.
*/
@SuppressWarnings("unused")
private void printRefactoringResultSource() throws Exception {
printRefactoringTestSourceResult(getAnalysisContext(), refactoring);
}
/**
* Sets selection to the start of the first occurrence of the given string.
*/
private void setSelectionString(String pattern) {
selectionStart = findOffset(pattern);
selectionEnd = findEnd(pattern);
}
}