java-decompiler: post-import cleanup (tests reorganized)

1 files changed, 124 insertions, 0 deletions

diff --git a/test/org/jetbrains/java/decompiler/SingleClassesTest.java b/test/org/jetbrains/java/decompiler/SingleClassesTest.java
new file mode 100644
index 0000000..1e37d97
--- /dev/null
+++ b/test/org/jetbrains/java/decompiler/SingleClassesTest.java
@@ -0,0 +1,124 @@
+/*
+ * 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.jetbrains.java.decompiler.main.extern.IFernflowerPreferences;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.*;
+import java.util.HashMap;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class SingleClassesTest {
+  private File tempDir;
+  private ConsoleDecompiler decompiler;
+
+  @Before
+  public void setUp() throws IOException {
+    tempDir = File.createTempFile("decompiler_test_", "_dir");
+    assertTrue(tempDir.delete());
+    assertTrue(tempDir.mkdirs());
+    decompiler = new ConsoleDecompiler(new HashMap<String, Object>() {{
+      boolean win = System.getProperty("os.name", "").startsWith("Windows");
+      put(IFernflowerPreferences.LOG_LEVEL, "warn");
+      put(IFernflowerPreferences.RENAME_ENTITIES, "1");
+      put(IFernflowerPreferences.HIDE_DEFAULT_CONSTRUCTOR, "1");
+      put(IFernflowerPreferences.DECOMPILE_GENERIC_SIGNATURES, "0");
+      put(IFernflowerPreferences.IDEA_NOT_NULL_ANNOTATION, "1");
+      put(IFernflowerPreferences.LAMBDA_TO_ANONYMOUS_CLASS, "0");
+      put(IFernflowerPreferences.USE_DEBUG_VARNAMES, "0");
+      put(IFernflowerPreferences.NEW_LINE_SEPARATOR, (win ? "0" : "1"));
+    }});
+  }
+
+  @After
+  public void tearDown() {
+    decompiler = null;
+    delete(tempDir);
+    tempDir = null;
+  }
+
+  @Test public void testClassFields() { doTest("TestClassFields"); }
+  @Test public void testClassLambda() { doTest("TestClassLambda"); }
+  @Test public void testClassLoop() { doTest("TestClassLoop"); }
+  @Test public void testClassSwitch() { doTest("TestClassSwitch"); }
+  @Test public void testClassTypes() { doTest("TestClassTypes"); }
+  @Test public void testClassVar() { doTest("TestClassVar"); }
+
+  private void doTest(String testName) {
+    try {
+      File testDataDir = new File("testData");
+      if (!isTestDataDir(testDataDir)) testDataDir = new File("community/plugins/java-decompiler/engine/testData");
+      if (!isTestDataDir(testDataDir)) testDataDir = new File("plugins/java-decompiler/engine/testData");
+      assertTrue(isTestDataDir(testDataDir));
+
+      File classFile = new File(testDataDir, "/classes/pkg/" + testName + ".class");
+      assertTrue(classFile.isFile());
+      decompiler.addSpace(classFile, true);
+      decompiler.decompileContext(tempDir);
+
+      File decompiledFile = new File(tempDir, testName + ".java");
+      assertTrue(decompiledFile.isFile());
+
+      File referenceFile = new File(testDataDir, "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 boolean isTestDataDir(File dir) {
+    return dir.isDirectory() && new File(dir, "classes").isDirectory() && new File(dir, "results").isDirectory();
+  }
+
+  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();
+    }
+  }
+
+  private static void delete(File file) {
+    if (file.isDirectory()) {
+      File[] files = file.listFiles();
+      if (files != null) {
+        for (File f : files) delete(f);
+      }
+    }
+    else {
+      assertTrue(file.delete());
+    }
+  }
+}