/*
* Copyright 2017 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.errorprone.bugpatterns;
import static com.google.errorprone.BugCheckerRefactoringTestHelper.TestMode.TEXT_MATCH;
import com.google.errorprone.BugCheckerRefactoringTestHelper;
import com.google.errorprone.CompilationTestHelper;
import java.io.IOException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** {@link MissingDefault}Test */
@RunWith(JUnit4.class)
public class MissingDefaultTest {
private final CompilationTestHelper compilationHelper =
CompilationTestHelper.newInstance(MissingDefault.class, getClass());
@Test
public void positive() throws IOException {
BugCheckerRefactoringTestHelper.newInstance(new MissingDefault(), getClass())
.addInputLines(
"in/Test.java",
"class Test {",
" boolean f(int i) {",
" // BUG: Diagnostic contains:",
" switch (i) {",
" case 42:",
" return true;",
" }",
" return false;",
" }",
"}")
.addOutputLines(
"out/Test.java",
"class Test {",
" boolean f(int i) {",
" // BUG: Diagnostic contains:",
" switch (i) {",
" case 42:",
" return true;",
"default: // fall out",
"",
" }",
" return false;",
" }",
"}")
.doTest(TEXT_MATCH);
}
@Test
public void positiveBreak() throws IOException {
BugCheckerRefactoringTestHelper.newInstance(new MissingDefault(), getClass())
.addInputLines(
"in/Test.java",
"class Test {",
" void f(int i) {",
" // BUG: Diagnostic contains:",
" switch (i) {",
" case 42:",
" System.err.println(42);",
" }",
" }",
"}")
.addOutputLines(
"out/Test.java",
"class Test {",
" void f(int i) {",
" // BUG: Diagnostic contains:",
" switch (i) {",
" case 42:",
" System.err.println(42);",
"break;",
"default: // fall out",
"",
" }",
" }",
"}")
.doTest(TEXT_MATCH);
}
@Test
public void negative() {
compilationHelper
.addSourceLines(
"Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" case 42:",
" return true;",
" default:",
" return false;",
" }",
" }",
"}")
.doTest();
}
@Test
public void enumSwitch() {
compilationHelper
.addSourceLines(
"Test.java",
"class Test {",
" enum E { ONE, TWO }",
" boolean f(E e) {",
" switch (e) {",
" case ONE:",
" return true;",
" }",
" return false;",
" }",
"}")
.doTest();
}
@Test
public void empty() {
compilationHelper
.addSourceLines(
"Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" case 42:",
" return true;",
" default: // fall out",
" }",
" return false;",
" }",
"}")
.doTest();
}
@Test
public void emptyNoComment() throws IOException {
BugCheckerRefactoringTestHelper.newInstance(new MissingDefault(), getClass())
.addInputLines(
"in/Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" case 42:",
" return true;",
" default:",
" }",
" return false;",
" }",
"}")
.addOutputLines(
"out/Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" case 42:",
" return true;",
" default: // fall out",
" }",
" return false;",
" }",
"}")
.doTest(TEXT_MATCH);
}
@Test
public void interiorEmptyNoComment() throws IOException {
BugCheckerRefactoringTestHelper.newInstance(new MissingDefault(), getClass())
.addInputLines(
"in/Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" default:",
" case 42:",
" return true;",
" }",
" }",
"}")
.addOutputLines(
"out/Test.java",
"class Test {",
" boolean f(int i) {",
" switch (i) {",
" default: // fall through",
" case 42:",
" return true;",
" }",
" }",
"}")
.doTest(TEXT_MATCH);
}
}