added conditional ignore for JUnit tests

Former-commit-id: 786a9bf2b0886c05fef79eadb39af312fabff893

dependency-check-core/src/test/java/com/codeaffine/junit/ignore/ConditionalIgnoreRule.java

@@ -0,0 +1,79 @@
+/**
+ * *****************************************************************************
+ * Copyright (c) 2013 Rüdiger Herrmann All rights reserved. This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors: Rüdiger Herrmann - initial API and implementation
+ *****************************************************************************
+ */
+package com.codeaffine.junit.ignore;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import org.junit.Assume;
+import org.junit.rules.MethodRule;
+import org.junit.runners.model.FrameworkMethod;
+import org.junit.runners.model.Statement;
+
+public class ConditionalIgnoreRule implements MethodRule {
+
+    public interface IgnoreCondition {
+
+        boolean isSatisfied();
+    }
+
+    @Retention(RetentionPolicy.RUNTIME)
+    @Target({ElementType.METHOD})
+    public @interface ConditionalIgnore {
+
+        Class<? extends IgnoreCondition> condition();
+    }
+
+    public Statement apply(Statement base, FrameworkMethod method, Object target) {
+        Statement result = base;
+        if (hasConditionalIgnoreAnnotation(method)) {
+            IgnoreCondition condition = getIgnoreContition(method);
+            if (condition.isSatisfied()) {
+                result = new IgnoreStatement(condition);
+            }
+        }
+        return result;
+    }
+
+    private boolean hasConditionalIgnoreAnnotation(FrameworkMethod method) {
+        return method.getAnnotation(ConditionalIgnore.class) != null;
+    }
+
+    private IgnoreCondition getIgnoreContition(FrameworkMethod method) {
+        ConditionalIgnore annotation = method.getAnnotation(ConditionalIgnore.class);
+        return newCondition(annotation);
+    }
+
+    private IgnoreCondition newCondition(ConditionalIgnore annotation) {
+        try {
+            return annotation.condition().newInstance();
+        } catch (RuntimeException re) {
+            throw re;
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static class IgnoreStatement extends Statement {
+
+        private IgnoreCondition condition;
+
+        IgnoreStatement(IgnoreCondition condition) {
+            this.condition = condition;
+        }
+
+        @Override
+        public void evaluate() {
+            Assume.assumeTrue("Ignored by " + condition.getClass().getSimpleName(), false);
+        }
+    }
+
+}

dependency-check-core/src/test/java/com/codeaffine/junit/ignore/NotRunningOnWindows.java

@@ -0,0 +1,25 @@
+/**
+ * *****************************************************************************
+ * Copyright (c) 2013 Rüdiger Herrmann All rights reserved. This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors: Rüdiger Herrmann - initial API and implementation
+ * ****************************************************************************
+ */
+package com.codeaffine.junit.ignore;
+
+/**
+ * The following NotRunningOnWindows class was taken from blog by Rüdiger Herrmann titled <a
+ * href="http://www.codeaffine.com/2013/11/18/a-junit-rule-to-conditionally-ignore-tests/">
+ * A JUnit Rule to Conditionally Ignore Tests</a>.
+ *
+ * @author Rüdiger Herrmann <rherrmann@codeaffine.com>
+ */
+public class NotRunningOnWindows implements ConditionalIgnoreRule.IgnoreCondition {
+
+    @Override
+    public boolean isSatisfied() {
+        return !System.getProperty("os.name").startsWith("Windows");
+    }
+}