Java: Provide completion for arguments of Class.getAnnotation() and Class.getConstructor(), tests added (IDEA-167250)

2026-09-27 06:05:01 +07:00 · 2017-02-10 13:05:28 +03:00
parent ece87efcca
commit 24e71dc952
21 changed files with 567 additions and 147 deletions
@@ -0,0 +1,99 @@
+/*
+ * 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.
+ */
+/*
+ * 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.JavaTestUtil
+import com.intellij.codeInsight.lookup.LookupElementPresentation
+import com.intellij.testFramework.LightProjectDescriptor
+
+/**
+ * @author Pavel.Dolgov
+ */
+class JavaReflectionParametersCompletionTest : LightFixtureCompletionTestCase() {
+  override fun getBasePath() = JavaTestUtil.getRelativeJavaTestDataPath() + "/codeInsight/completion/reflectionParameters/"
+
+  override fun getProjectDescriptor(): LightProjectDescriptor = com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase.JAVA_8
+
+  fun testAnnotation() = doTest(0, "Bar.class", "Foo.class", "aType")
+
+  fun testInheritedAnnotation() = doTest(1, "Bar.class", "Foo.class", "aType")
+
+  fun testDeclaredAnnotation() = doTest(0, "Bar.class", "Foo.class")
+
+  fun testInheritedDeclaredAnnotation() = doTest(1, "Bar.class", "Foo.class")
+
+  fun testAnnotationsByType() = doTest(0, "Bar.class", "Foo.class")
+
+  fun testDeclaredAnnotationsByType() = doTest(1, "Bar.class", "Foo.class")
+
+  fun testConstructor() {
+    addConstructors()
+    doTest(2, "Construct()", "Construct(int)", "Construct(int,java.lang.String)", "Construct(java.lang.String)")
+  }
+
+  fun testDeclaredConstructor() {
+    addConstructors()
+    doTest(0, "Construct()", "Construct(int)", "Construct(int,java.lang.String)", "Construct(java.lang.String)")
+  }
+
+  private fun doTest(index: Int, vararg expected: String) {
+    addClasses()
+    configureByFile(getTestName(false) + ".java")
+
+    val lookupItems = lookup.items
+    val texts = lookupItems.subList(0, Math.min(lookupItems.size, expected.size)).map {
+      val presentation = LookupElementPresentation()
+      it?.renderElement(presentation)
+      presentation.itemText ?: ""
+    }
+    assertOrderedEquals(texts, *expected)
+    selectItem(lookupItems[index])
+    myFixture.checkResultByFile(getTestName(false) + "_after.java")
+  }
+
+  private fun addClasses() {
+    myFixture.addClass("package foo.bar; public @interface Foo {}")
+    myFixture.addClass("package foo.bar; public @interface Bar {}")
+    myFixture.addClass("package foo.bar; public @interface Baz {}")
+    myFixture.addClass("package foo.bar; @Foo class Parent {}")
+    myFixture.addClass("package foo.bar; @Bar class Test extends Parent {}")
+  }
+
+  private fun addConstructors() {
+    myFixture.addClass("""package foo.bar;
+public class Construct {
+  public Construct(int n, String s) {}
+  Construct(int n) {}
+  Construct(String s) {}
+  public Construct() {}
+}""")
+  }
+}