svn commit: r1398550 - in /pig/trunk/test/org/apache/pig/test/junit: ./ OrderedJUnit4Runner.java

[dv...@apache.org]

Author: dvryaboy
Date: Mon Oct 15 22:32:10 2012
New Revision: 1398550

URL: http://svn.apache.org/viewvc?rev=1398550&view=rev
Log:
Add test/org/apache/pig/test/junit for PIG-2908

Added:
    pig/trunk/test/org/apache/pig/test/junit/
    pig/trunk/test/org/apache/pig/test/junit/OrderedJUnit4Runner.java

Added: pig/trunk/test/org/apache/pig/test/junit/OrderedJUnit4Runner.java
URL: http://svn.apache.org/viewvc/pig/trunk/test/org/apache/pig/test/junit/OrderedJUnit4Runner.java?rev=1398550&view=auto
==============================================================================
--- pig/trunk/test/org/apache/pig/test/junit/OrderedJUnit4Runner.java (added)
+++ pig/trunk/test/org/apache/pig/test/junit/OrderedJUnit4Runner.java Mon Oct 15 22:32:10 2012
@@ -0,0 +1,100 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.pig.test.junit;
+
+import static java.lang.annotation.ElementType.TYPE;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.junit.runners.BlockJUnit4ClassRunner;
+import org.junit.runners.model.FrameworkMethod;
+import org.junit.runners.model.InitializationError;
+
+public class OrderedJUnit4Runner extends BlockJUnit4ClassRunner {
+
+    @Retention(java.lang.annotation.RetentionPolicy.RUNTIME)
+    @Target(TYPE)
+    public @interface TestOrder {
+        String[] value();
+    }
+
+    private String testClassName;
+    private String[] orderedTestMethods;
+    private List<FrameworkMethod> methodsCustomOrder;
+
+    public OrderedJUnit4Runner(Class<?> klass) throws InitializationError {
+        super(klass);
+        TestOrder testOrder = klass.getAnnotation(TestOrder.class);
+        if (testOrder != null) {
+            orderedTestMethods = testOrder.value();
+        }
+        this.testClassName = klass.getName();
+    }
+
+    @Override
+    protected List<FrameworkMethod> computeTestMethods() {
+        List<FrameworkMethod> methodsReflectionOrder = super
+                .computeTestMethods();
+        if (orderedTestMethods == null || orderedTestMethods.length == 0) {
+            return methodsReflectionOrder;
+        } else {
+
+            if (methodsCustomOrder == null) {
+                // Check for duplicate test methods
+                Set<String> uniqueMethods = new HashSet<String>();
+                Collections.addAll(uniqueMethods, orderedTestMethods);
+                if (uniqueMethods.size() != orderedTestMethods.length) {
+                    throw new IllegalArgumentException(
+                            "The TestOrder annotation in " + testClassName
+                                    + " has duplicate test method names");
+                }
+
+                methodsCustomOrder = new ArrayList<FrameworkMethod>();
+                for (String method : orderedTestMethods) {
+                    for (FrameworkMethod fMethod : methodsReflectionOrder) {
+                        if (fMethod.getName().equals(method)) {
+                            methodsCustomOrder.add(fMethod);
+                            break;
+                        }
+                    }
+                }
+
+                // Check for missing test methods
+                methodsReflectionOrder.removeAll(methodsCustomOrder);
+                if (methodsReflectionOrder.size() > 0) {
+                    String tests = "";
+                    for (FrameworkMethod fMethod : methodsReflectionOrder) {
+                        tests = tests + fMethod.getName();
+                    }
+                    throw new IllegalArgumentException(
+                            "The TestOrder annotation in " + testClassName
+                            + " does not include the following tests which have @Test: "
+                            + tests);
+                }
+            }
+            return methodsCustomOrder;
+        }
+    }
+
+}