Initial tests for types defined by mypy's typing module

python/testSrc/com/jetbrains/python/PyTypingTest.java

@@ -0,0 +1,80 @@
+/*
+ * 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.jetbrains.python;
+
+import com.intellij.testFramework.LightProjectDescriptor;
+import com.jetbrains.python.documentation.PythonDocumentationProvider;
+import com.jetbrains.python.fixtures.PyTestCase;
+import com.jetbrains.python.psi.LanguageLevel;
+import com.jetbrains.python.psi.PyExpression;
+import com.jetbrains.python.psi.types.PyType;
+import com.jetbrains.python.psi.types.TypeEvalContext;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author vlan
+ */
+public class PyTypingTest extends PyTestCase {
+  @Nullable
+  @Override
+  protected LightProjectDescriptor getProjectDescriptor() {
+    return ourPy3Descriptor;
+  }
+
+  @Override
+  public void setUp() throws Exception {
+    super.setUp();
+    setLanguageLevel(LanguageLevel.PYTHON32);
+  }
+
+  @Override
+  public void tearDown() throws Exception {
+    setLanguageLevel(null);
+    super.tearDown();
+  }
+
+  public void testClassType() {
+    doTest("Foo",
+           "class Foo:" +
+           "    pass\n" +
+           "\n" +
+           "def f(expr: Foo):\n" +
+           "    pass\n");
+  }
+
+  public void testClassReturnType() {
+    doTest("Foo",
+           "class Foo:" +
+           "    pass\n" +
+           "\n" +
+           "def f() -> Foo:\n" +
+           "    pass\n" +
+           "\n" +
+           "expr = f()\n");
+
+  }
+
+  private void doTest(@NotNull String expectedType, @NotNull String text) {
+    myFixture.copyDirectoryToProject("typing", "");
+    myFixture.configureByText(PythonFileType.INSTANCE, text);
+    final PyExpression expr = myFixture.findElementByText("expr", PyExpression.class);
+    final TypeEvalContext context = TypeEvalContext.userInitiated(expr.getContainingFile()).withTracing();
+    PyType actual = context.getType(expr);
+    final String actualType = PythonDocumentationProvider.getTypeName(actual, context);
+    assertEquals(expectedType, actualType);
+  }
+}