/*
* Copyright 2013-2016 Sergey Ignatov, Alexander Zolotov, Florin Patan
*
* 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.goide.editor;
import com.goide.GoCodeInsightFixtureTestCase;
import com.goide.SdkAware;
import com.intellij.codeInsight.highlighting.HighlightUsagesHandler;
import com.intellij.codeInsight.highlighting.HighlightUsagesHandlerBase;
import com.intellij.psi.PsiElement;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import java.util.List;
@SdkAware
public class GoExitPointsHighlightingTest extends GoCodeInsightFixtureTestCase {
public void testBasicExitPoints() {
String text = "package main;\n" +
"func bar(x int) int {\n" +
" if (x < 10) {\n" +
" retur<caret>n -1" +
" }" +
" return x\n" +
"}";
doTest(text, "func", "return -1", "return x");
}
public void testCaretOnFuncWithReturnAndPanic() {
String text = "package main;\n" +
"fun<caret>c bar(x int) int {\n" +
" if (9 < 10) {\n" +
" return -1" +
" }" +
" panic(x)\n" +
"}";
doTest(text, "func", "return -1", "panic(x)");
}
public void testCaretOnFuncWithNoExitPoints() {
String text = "package main\n" +
"import \"fmt\"\n" +
"f<caret>unc main() {\n" +
" fmt.Println(\"Hello, world!\"\n" +
"}";
doTest(text, "func");
}
public void testCaretOnFuncOnType() {
String text = "package main\n" +
"\n" +
"type Demo struct {}\n" +
"\n" +
"f<caret>unc (a Demo) demo() int {\n" +
" return -1\n" +
"}";
doTest(text, "func", "return -1");
}
public void testBreakSwitch() {
String text = "package main\n" +
"import \"fmt\"\n" +
"\n" +
"type Demo struct {}\n" +
"\n" +
"\n" +
"func (a Demo) demo() int {\n" +
" i := 2\n" +
" n := 10\n" +
" var j int\n" +
" var m int = 10\n" +
" var a [][]int\n" +
" var item = 10\n" +
" for i = 0; i < n; i++ {\n" +
" for j = 0; j < m; j++ {\n" +
" switch a[i][j] {\n" +
" case nil:\n" +
" fmt.Println()\n" +
" break\n" +
" case item:\n" +
" fmt.Println()\n" +
" br<caret>eak\n" +
" }\n" +
" }\n" +
" }\n" +
" return -1\n" +
"}";
doTest(text, "break", "break", "switch");
}
public void testBreakFor() {
String text = "package main\n" +
"import \"fmt\"\n" +
"\n" +
"type Demo struct {}\n" +
"\n" +
"\n" +
"func (a Demo) demo() int {\n" +
" i := 2\n" +
" n := 10\n" +
" var j int\n" +
" var m int = 10\n" +
" for i = 0; i < n; i++ {\n" +
" fo<caret>r j = 0; j < m; j++ {\n" +
" if j < 10 {\n" +
" break\n" +
" }\n" +
" }\n" +
" }\n" +
" return -1\n" +
"}";
doTest(text, "for", "break");
}
public void testBreakSelect() {
String text = "package main\n" +
"\n" +
"import \"fmt\"\n" +
"\n" +
"func main() {\n" +
" fmt.Println(\"FOO\")\n" +
" c1 := make(chan string)\n" +
" c2 := make(chan string)\n" +
" for i := 0; i < 2; i++ {\n" +
" sele<caret>ct {\n" +
" case msg1 := <-c1:\n" +
" fmt.Println(\"received\", msg1)\n" +
" break\n" +
" case msg2 := <-c2:\n" +
" fmt.Println(\"received\", msg2)\n" +
" }\n" +
" }\n" +
"}\n";
doTest(text, "select", "break");
}
public void testBreakWithLabel() {
String text = "package main\n" +
"\n" +
"func main() {\n" +
"\n" +
" L:\n" +
" for i := 0; i < 2; i++ {\n" +
" switch i {\n" +
" case 2:\n" +
" break\n" +
" case 1:\n" +
" b<caret>reak L\n" +
" default:\n" +
" break L\n" +
" }\n" +
" }\n" +
"}\n";
doTest(text, "L", "break L", "break L");
}
private void doTest(@NotNull String text, String... usages) {
myFixture.configureByText("foo.go", text);
@SuppressWarnings("unchecked")
HighlightUsagesHandlerBase<PsiElement> handler = HighlightUsagesHandler.createCustomHandler(myFixture.getEditor(), myFixture.getFile());
assertNotNull(handler);
List<PsiElement> targets = handler.getTargets();
assertEquals(1, targets.size());
handler.computeUsages(targets);
List<String> textUsages = ContainerUtil.map(handler.getReadUsages(), range -> range.substring(myFixture.getFile().getText()));
assertSameElements(textUsages, usages);
}
}