1 files changed, 125 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/test/org/jetbrains/java/decompiler/SingleClassesTest.java b/plugins/java-decompiler/engine/test/org/jetbrains/java/decompiler/SingleClassesTest.java
new file mode 100644
index 000000000000..70aa605e8630
--- /dev/null
+++ b/plugins/java-decompiler/engine/test/org/jetbrains/java/decompiler/SingleClassesTest.java
@@ -0,0 +1,125 @@
+/*
+ * 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 org.jetbrains.java.decompiler;
+
+import org.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class SingleClassesTest {
+  private DecompilerTestFixture fixture;
+
+  @Before
+  public void setUp() throws IOException {
+    fixture = new DecompilerTestFixture();
+    fixture.setUp();
+  }
+
+  @After
+  public void tearDown() {
+    fixture.tearDown();
+    fixture = null;
+  }
+
+  @Test public void testClassFields() { doTest("pkg/TestClassFields"); }
+  @Test public void testClassLambda() { doTest("pkg/TestClassLambda"); }
+  @Test public void testClassLoop() { doTest("pkg/TestClassLoop"); }
+  @Test public void testClassSwitch() { doTest("pkg/TestClassSwitch"); }
+  @Test public void testClassTypes() { doTest("pkg/TestClassTypes"); }
+  @Test public void testClassVar() { doTest("pkg/TestClassVar"); }
+  @Test public void testClassNestedInitializer() { doTest("pkg/TestClassNestedInitializer"); }
+  @Test public void testClassCast() { doTest("pkg/TestClassCast"); }
+  @Test public void testDeprecations() { doTest("pkg/TestDeprecations"); }
+  @Test public void testExtendsList() { doTest("pkg/TestExtendsList"); }
+  @Test public void testMethodParameters() { doTest("pkg/TestMethodParameters"); }
+  @Test public void testCodeConstructs() { doTest("pkg/TestCodeConstructs"); }
+  @Test public void testConstants() { doTest("pkg/TestConstants"); }
+  @Test public void testEnum() { doTest("pkg/TestEnum"); }
+  @Test public void testDebugSymbols() { doTest("pkg/TestDebugSymbols"); }
+  @Test public void testInvalidMethodSignature() { doTest("InvalidMethodSignature"); }
+
+  private void doTest(String testFile) {
+    try {
+      File classFile = new File(fixture.getTestDataDir(), "/classes/" + testFile + ".class");
+      assertTrue(classFile.isFile());
+      String testName = classFile.getName().replace(".class", "");
+
+      ConsoleDecompiler decompiler = fixture.getDecompiler();
+      for (File file : collectClasses(classFile)) {
+        decompiler.addSpace(file, true);
+      }
+
+      decompiler.decompileContext();
+
+      File decompiledFile = new File(fixture.getTargetDir(), testName + ".java");
+      assertTrue(decompiledFile.isFile());
+
+      File referenceFile = new File(fixture.getTestDataDir(), "results/" + testName + ".dec");
+      assertTrue(referenceFile.isFile());
+
+      String decompiledContent = getContent(decompiledFile);
+      String referenceContent = getContent(referenceFile);
+      assertEquals(referenceContent, decompiledContent);
+    }
+    catch (Exception e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  private static List<File> collectClasses(File classFile) {
+    List<File> files = new ArrayList<File>();
+    files.add(classFile);
+
+    File parent = classFile.getParentFile();
+    if (parent != null) {
+      final String pattern = classFile.getName().replace(".class", "") + "\\$.+\\.class";
+      File[] inner = parent.listFiles(new FilenameFilter() {
+        @Override
+        public boolean accept(File dir, String name) {
+          return name.matches(pattern);
+        }
+      });
+      if (inner != null) Collections.addAll(files, inner);
+    }
+
+    return files;
+  }
+
+  private static String getContent(File file) throws IOException {
+    Reader reader = new InputStreamReader(new FileInputStream(file), "UTF-8");
+    try {
+      char[] buff = new char[16 * 1024];
+      StringBuilder content = new StringBuilder();
+      int n;
+      while ((n = reader.read(buff)) > 0) {
+        content.append(buff, 0, n);
+      }
+      return content.toString();
+    }
+    finally {
+      reader.close();
+    }
+  }
+}