Refactor configuration for ConfigPersister.

[netconf.git] / opendaylight / netconf / config-persister-impl / src / test / java / org / opendaylight / controller / netconf / persist / impl / osgi / TestingExceptionHandler.java

diff --git a/opendaylight/netconf/config-persister-impl/src/test/java/org/opendaylight/controller/netconf/persist/impl/osgi/TestingExceptionHandler.java b/opendaylight/netconf/config-persister-impl/src/test/java/org/opendaylight/controller/netconf/persist/impl/osgi/TestingExceptionHandler.java
new file mode 100644 (file)
index 0000000..d42c15b
--- /dev/null
+++ b/opendaylight/netconf/config-persister-impl/src/test/java/org/opendaylight/controller/netconf/persist/impl/osgi/TestingExceptionHandler.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  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
+ */
+package org.opendaylight.controller.netconf.persist.impl.osgi;
+
+import org.junit.matchers.JUnitMatchers;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.fail;
+
+final class TestingExceptionHandler implements Thread.UncaughtExceptionHandler {
+
+    private Throwable t;
+
+    @Override
+    public void uncaughtException(Thread t, Throwable e) {
+        this.t = e;
+    }
+
+    public void assertException(String failMessageSuffix, Class<? extends Exception> exType, String exMessageToContain) {
+        if(t == null) {
+            fail("Should fail to " + failMessageSuffix);
+        }
+        else {
+            assertException(t, exType, exMessageToContain);
+        }
+    }
+
+    public void assertNoException() {
+        assertNull("No exception expected but was " + t, t);
+    }
+
+    private void assertException(Throwable t, Class<? extends Exception> exType, String exMessageToContain) {
+        assertEquals("Expected exception of type " + exType + " but was " + t, exType, t.getClass());
+        if(exMessageToContain!=null) {
+            assertThat(t.getMessage(), JUnitMatchers.containsString(exMessageToContain));
+        }
+    }
+
+    public void assertException(String failMessageSuffix, Class<? extends Exception> exType,
+            String exMessageToContain, Class<? extends Exception> nestedExType, String nestedExMessageToContain,
+            int nestedExDepth) {
+        assertException(failMessageSuffix, exType, exMessageToContain);
+        assertNotNull("Expected nested exception in " + t, t.getCause());
+        assertException(getNestedException(t, nestedExDepth), nestedExType, nestedExMessageToContain);
+    }
+
+    private Throwable getNestedException(Throwable t, int nestedExDepth) {
+
+        int depth = 0;
+        while(t.getCause() != null) {
+            t = t.getCause();
+            depth++;
+            if(nestedExDepth == depth)
+                return t;
+        }
+        throw new IllegalArgumentException("Unable to get nested exception from " + t + " from depth " + nestedExDepth);
+    }
+}