Make test create and delete out directories.

js/js.tests/test/org/jetbrains/k2js/test/KotlinLibTest.java

@@ -55,7 +55,7 @@ public final class KotlinLibTest extends TranslationTest {
         final Map<String, Class<? extends Scriptable>> propertyToType
                 = new HashMap<String, Class<? extends Scriptable>>();
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("trait.js")),
-                new RhinoPropertyTypesChecker("foo", propertyToType));
+                     new RhinoPropertyTypesChecker("foo", propertyToType));
     }
 
 
@@ -63,56 +63,61 @@ public final class KotlinLibTest extends TranslationTest {
         final Map<String, Class<? extends Scriptable>> propertyToType
                 = new HashMap<String, Class<? extends Scriptable>>();
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("namespace.js")),
-                new RhinoPropertyTypesChecker("foo", propertyToType));
+                     new RhinoPropertyTypesChecker("foo", propertyToType));
     }
 
     //
     // TODO:Refactor calls to function result checker with test
     public void testNamespaceHasDeclaredFunction() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("namespace.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testNamespaceHasDeclaredClasses() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("namespaceWithClasses.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testIsSameType() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("isSameType.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testIsAncestorType() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("isAncestorType.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testIsComplexTest() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("isComplexTest.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testCommaExpression() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("commaExpression.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testArray() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("array.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
     }
 
 
     public void testHashMap() throws Exception {
         runRhinoTest(Arrays.asList(kotlinLibraryPath(), cases("hashMap.js")),
-                new RhinoFunctionResultChecker("test", true));
+                     new RhinoFunctionResultChecker("test", true));
+    }
+
+    @Override
+    protected boolean shouldCreateOut() {
+        return false;
     }
 
 }

js/js.tests/test/org/jetbrains/k2js/test/Suite.java

@@ -46,10 +46,15 @@ public final class Suite extends TranslationTest {
         });
     }
 
-//    //NOTE: just to avoid warning
+    //NOTE: just to avoid warning
     public void testNothing() {
     }
 
+    @Override
+    protected boolean shouldCreateOut() {
+        return false;
+    }
+
     @Override
     protected String mainDirectory() {
         return testMain;

js/js.tests/test/org/jetbrains/k2js/test/TranslationTest.java

@@ -42,7 +42,8 @@ import static org.jetbrains.k2js.utils.JetFileUtils.createPsiFileList;
  */
 public abstract class TranslationTest extends BaseTest {
 
-    public final static String TEST_FILES = "js.translator/testFiles/";
+    private static final boolean DELETE_OUT = true;
+    public static final String TEST_FILES = "js.translator/testFiles/";
     private static final String CASES = "cases/";
     private static final String OUT = "out/";
     private static final String KOTLIN_JS_LIB = TEST_FILES + "kotlin_lib.js";
@@ -61,6 +62,33 @@ public abstract class TranslationTest extends BaseTest {
         K2JSTranslator.saveProgramToFile(outputFile, program);
     }
 
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        //noinspection PointlessBooleanExpression
+        if (!shouldCreateOut() || !DELETE_OUT) {
+            return;
+        }
+        File outDir = new File(getOutputPath());
+        assert (!outDir.exists() || outDir.isDirectory()) : "If out already exists it should be a directory.";
+        if (!outDir.exists()) {
+            boolean success = outDir.mkdir();
+            assert success;
+        }
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        super.tearDown();
+        if (!shouldCreateOut()) {
+            return;
+        }
+        File outDir = new File(getOutputPath());
+        assert outDir.exists();
+        boolean success = FileUtil.delete(outDir);
+        assert success;
+    }
+
     protected static String kotlinLibraryPath() {
         return KOTLIN_JS_LIB;
     }
@@ -114,6 +142,10 @@ public abstract class TranslationTest extends BaseTest {
                      new RhinoFunctionResultChecker(namespaceName, functionName, expectedResult));
     }
 
+    protected boolean shouldCreateOut() {
+        return true;
+    }
+
     protected void translateFile(String filename) throws Exception {
         translateFile(getInputFilePath(filename),
                       getOutputFilePath(filename));
@@ -124,7 +156,7 @@ public abstract class TranslationTest extends BaseTest {
         File dir = new File(dirPath);
         List<String> fullFilePaths = new ArrayList<String>();
         for (String fileName : dir.list()) {
-            fullFilePaths.add(getInputFilePath(dirName) + "\\" + fileName);
+            fullFilePaths.add(getInputFilePath(dirName) + "/" + fileName);
         }
         assert dir.isDirectory();
         traslateFiles(fullFilePaths,