/*
* Copyright 2000-2017 JetBrains s.r.o.
*
* 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.intellij.codeInsight.completion;
import com.intellij.codeInsight.daemon.impl.ParameterHintsPresentationManager;
import com.intellij.codeInsight.hint.ParameterInfoController;
import com.intellij.codeInsight.lookup.LookupElement;
import com.intellij.codeInsight.lookup.LookupElementPresentation;
import com.intellij.ide.highlighter.JavaFileType;
import com.intellij.openapi.actionSystem.IdeActions;
import com.intellij.openapi.util.registry.Registry;
import com.intellij.openapi.util.registry.RegistryValue;
import com.intellij.util.ui.UIUtil;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.LockSupport;
import java.util.stream.Stream;
public class CompletionHintsTest extends LightFixtureCompletionTestCase {
private RegistryValue myRegistryValue = Registry.get("java.completion.argument.hints");
private boolean myStoredRegistryValue;
@Override
protected void setUp() throws Exception {
super.setUp();
myStoredRegistryValue = myRegistryValue.asBoolean();
myRegistryValue.setValue(true);
}
@Override
protected void tearDown() throws Exception {
try {
myRegistryValue.setValue(myStoredRegistryValue);
}
finally {
super.tearDown();
}
}
public void testBasicScenario() throws Exception {
// check hints appearance on completion
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.setPro<caret> } }");
complete("setProperty");
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>, <hint text=\"value:\"/>) } }");
// check that hints don't disappear after daemon highlighting passes
myFixture.doHighlighting();
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>, <hint text=\"value:\"/>) } }");
// test Tab/Shift+Tab navigation
myFixture.checkResult("class C { void m() { System.setProperty(<caret>, ) } }");
assertTrue(myFixture.getEditor().getCaretModel().getLogicalPosition().leansForward);
myFixture.performEditorAction("NextParameter");
myFixture.checkResult("class C { void m() { System.setProperty(, <caret>) } }");
assertTrue(myFixture.getEditor().getCaretModel().getLogicalPosition().leansForward);
myFixture.performEditorAction("PrevParameter");
myFixture.checkResult("class C { void m() { System.setProperty(<caret>, ) } }");
assertTrue(myFixture.getEditor().getCaretModel().getLogicalPosition().leansForward);
// test hints remain shown while entering parameter values
myFixture.type("\"a");
myFixture.performEditorAction("NextParameter");
myFixture.type("\"b");
myFixture.doHighlighting();
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>\"a\", <hint text=\"value:\"/>\"b\") } }");
// test hints disappearance when caret moves out of parameter list
myFixture.performEditorAction("EditorRight");
myFixture.performEditorAction("EditorRight");
ParameterInfoController.waitForDelayedActions(getEditor(), 10, TimeUnit.SECONDS);
myFixture.doHighlighting();
waitTillAnimationCompletes();
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(\"a\", \"b\") } }");
}
public void testSwitchingOverloads() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { Character.to<caret> } }");
complete("toChars(int codePoint)");
myFixture.checkResultWithInlays("class C { void m() { Character.toChars(<hint text=\"codePoint:\"/>) } }");
showParameterInfo();
myFixture.performEditorAction("MethodOverloadSwitchDown");
myFixture.checkResultWithInlays("class C { void m() { Character.toChars(<hint text=\"codePoint:\"/>, <hint text=\"dst:\"/>, <hint text=\"dstIndex:\"/>) } }");
}
public void testSwitchingOverloadsWithParameterFilled() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { Character.to<caret> } }");
complete("toChars(int codePoint)");
type("123");
myFixture.checkResultWithInlays("class C { void m() { Character.toChars(<hint text=\"codePoint:\"/>123) } }");
showParameterInfo();
myFixture.performEditorAction("MethodOverloadSwitchDown");
myFixture.checkResultWithInlays("class C { void m() { Character.toChars(<hint text=\"codePoint:\"/>123, <hint text=\"dst:\"/>, <hint text=\"dstIndex:\"/>) } }");
myFixture.checkResult("class C { void m() { Character.toChars(123, <caret>, ) } }");
}
public void testNoHintsForMethodReference() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C {\n" +
" interface I { void i(int p); }\n" +
" void referenced(int a) {}\n" +
" void m(I lambda) {}\n" +
" void m2() { m(this::<caret>) }\n" +
"}");
complete("referenced");
myFixture.checkResultWithInlays("class C {\n" +
" interface I { void i(int p); }\n" +
" void referenced(int a) {}\n" +
" void m(I lambda) {}\n" +
" void m2() { m(this::referenced) }\n" +
"}");
}
public void testNestedCompletion() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.setPro<caret> } }");
complete("setProperty");
myFixture.doHighlighting();
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>, <hint text=\"value:\"/>) } }");
myFixture.type("System.getPro");
complete("getProperty(String key, String def)");
myFixture.doHighlighting();
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>System.getProperty(<hint text=\"key:\"/>, <hint text=\"def:\"/>), <hint text=\"value:\"/>) } }");
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(<caret>, ), ) } }");
}
public void testTabWithNestedCompletion() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.setPro<caret> } }");
complete("setProperty");
myFixture.doHighlighting();
myFixture.type("System.getPro");
complete("getProperty(String key, String def)");
myFixture.doHighlighting();
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(<caret>, ), ) } }");
myFixture.performEditorAction("NextParameter");
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(, <caret>), ) } }");
myFixture.performEditorAction("NextParameter");
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(, )<caret>, ) } }");
myFixture.performEditorAction("NextParameter");
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(, ), <caret>) } }");
myFixture.performEditorAction("NextParameter");
myFixture.checkResult("class C { void m() { System.setProperty(System.getProperty(, ), )<caret> } }");
}
public void testNoHintsForMethodWithOneParameterFromBlackList() {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.getPro<caret> } }");
complete("getProperty(String key)");
myFixture.checkResultWithInlays("class C { void m() { System.getProperty() } }");
}
public void testHintsDisappearWhenNumberOfParametersIsChangedDirectly() throws Exception {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.getPro<caret> } }");
complete("getProperty(String key, String def)");
myFixture.checkResultWithInlays("class C { void m() { System.getProperty(<hint text=\"key:\"/>, <hint text=\"def:\"/>) } }");
myFixture.performEditorAction(IdeActions.ACTION_EDITOR_DELETE);
ParameterInfoController.waitForDelayedActions(getEditor(), 1, TimeUnit.MINUTES);
myFixture.doHighlighting();
waitTillAnimationCompletes();
myFixture.checkResultWithInlays("class C { void m() { System.getProperty( ) } }");
}
public void testCaretIsToTheRightOfHintAfterSmartInnerCompletion() throws Exception {
myFixture.configureByText(JavaFileType.INSTANCE, "class C { void m() { System.setPro<caret> } }");
complete("setProperty");
type("new String().trim");
myFixture.complete(CompletionType.SMART);
myFixture.checkResultWithInlays("class C { void m() { System.setProperty(<hint text=\"key:\"/>new String().trim(), <hint text=\"value:\"/>) } }");
myFixture.checkResult("class C { void m() { System.setProperty(new String().trim(), <caret>) } }");
assertEquals(getEditor().offsetToVisualPosition(getEditor().getCaretModel().getOffset(), true, false),
getEditor().getCaretModel().getVisualPosition());
}
private void showParameterInfo() {
myFixture.performEditorAction("ParameterInfo");
UIUtil.dispatchAllInvocationEvents();
}
private void complete(String partOfItemText) {
LookupElement[] elements = myFixture.completeBasic();
LookupElement element = Stream.of(elements).filter(e -> {
LookupElementPresentation p = new LookupElementPresentation();
e.renderElement(p);
return (p.getItemText() + p.getTailText()).contains(partOfItemText);
}).findAny().get();
selectItem(element);
}
private void waitTillAnimationCompletes() {
long deadline = System.currentTimeMillis() + 60_000;
while (ParameterHintsPresentationManager.getInstance().isAnimationInProgress(getEditor())) {
if (System.currentTimeMillis() > deadline) fail("Too long waiting for animation to finish");
LockSupport.parkNanos(10_000_000);
UIUtil.dispatchAllInvocationEvents();
}
}
}