check inferred type test

2026-09-27 10:03:11 +07:00 · 2014-05-05 17:12:08 +04:00
parent 4cefdc5290
commit 2ae7053744
1 changed files with 52 additions and 0 deletions
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2000-2014 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.daemon.lambda;
+
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiExpression;
+import com.intellij.psi.PsiIdentifier;
+import com.intellij.psi.PsiType;
+import com.intellij.testFramework.LightProjectDescriptor;
+import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase;
+import org.jetbrains.annotations.NotNull;
+import org.junit.Assert;
+
+public class InferredTypeTest extends LightCodeInsightFixtureTestCase {
+  public void testNestedCallReturnType() throws Exception {
+    myFixture.configureByText("a.java", "import java.util.List;\n" +
+                                        "abstract class Test {\n" +
+                                        "    abstract <R, K> R foo(K k1, K k2);\n" +
+                                        "    {\n" +
+                                        "        String str = \"\";\n" +
+                                        "        List<String> l = f<caret>oo(foo(str, str), str);\n" +
+                                        "    }\n" +
+                                        "}\n");
+    final PsiElement elementAtCaret = myFixture.getFile().findElementAt(myFixture.getCaretOffset());
+    Assert.assertTrue(elementAtCaret instanceof PsiIdentifier);
+
+    final PsiElement refExpr = elementAtCaret.getParent();
+    Assert.assertTrue(refExpr.toString(), refExpr instanceof PsiExpression);
+    final PsiType type = ((PsiExpression)refExpr).getType();
+    Assert.assertNotNull(refExpr.toString(), type);
+    Assert.assertTrue(type.getCanonicalText(), type.equalsToText("java.util.List<java.lang.String>"));
+  }
+
+  @NotNull
+  @Override
+  protected LightProjectDescriptor getProjectDescriptor() {
+    return JAVA_8;
+  }
+}