Adding Intent API tests
diff --git a/core/api/src/test/java/org/onlab/onos/net/intent/TestTools.java b/core/api/src/test/java/org/onlab/onos/net/intent/TestTools.java
new file mode 100644
index 0000000..f22585e
--- /dev/null
+++ b/core/api/src/test/java/org/onlab/onos/net/intent/TestTools.java
@@ -0,0 +1,126 @@
+package org.onlab.onos.net.intent;
+
+import static org.junit.Assert.fail;
+
+/**
+ * Set of test tools.
+ */
+public final class TestTools {
+
+ // Disallow construction
+ private TestTools() {
+ }
+
+ /**
+ * Utility method to pause the current thread for the specified number of
+ * milliseconds.
+ *
+ * @param ms number of milliseconds to pause
+ */
+ public static void delay(int ms) {
+ try {
+ Thread.sleep(ms);
+ } catch (InterruptedException e) {
+ fail("unexpected interrupt");
+ }
+ }
+
+ /**
+ * Periodically runs the given runnable, which should contain a series of
+ * test assertions until all the assertions succeed, in which case it will
+ * return, or until the the time expires, in which case it will throw the
+ * first failed assertion error.
+ *
+ * @param start start time, in millis since start of epoch from which the
+ * duration will be measured
+ * @param delay initial delay (in milliseconds) before the first assertion
+ * attempt
+ * @param step delay (in milliseconds) between successive assertion
+ * attempts
+ * @param duration number of milliseconds beyond the given start time,
+ * after which the failed assertions will be propagated and allowed
+ * to fail the test
+ * @param assertions runnable housing the test assertions
+ */
+ public static void assertAfter(long start, int delay, int step,
+ int duration, Runnable assertions) {
+ delay(delay);
+ while (true) {
+ try {
+ assertions.run();
+ break;
+ } catch (AssertionError e) {
+ if (System.currentTimeMillis() - start > duration) {
+ throw e;
+ }
+ }
+ delay(step);
+ }
+ }
+
+ /**
+ * Periodically runs the given runnable, which should contain a series of
+ * test assertions until all the assertions succeed, in which case it will
+ * return, or until the the time expires, in which case it will throw the
+ * first failed assertion error.
+ * <p>
+ * The start of the period is the current time.
+ *
+ * @param delay initial delay (in milliseconds) before the first assertion
+ * attempt
+ * @param step delay (in milliseconds) between successive assertion
+ * attempts
+ * @param duration number of milliseconds beyond the current time time,
+ * after which the failed assertions will be propagated and allowed
+ * to fail the test
+ * @param assertions runnable housing the test assertions
+ */
+ public static void assertAfter(int delay, int step, int duration,
+ Runnable assertions) {
+ assertAfter(System.currentTimeMillis(), delay, step, duration,
+ assertions);
+ }
+
+ /**
+ * Periodically runs the given runnable, which should contain a series of
+ * test assertions until all the assertions succeed, in which case it will
+ * return, or until the the time expires, in which case it will throw the
+ * first failed assertion error.
+ * <p>
+ * The start of the period is the current time and the first assertion
+ * attempt is delayed by the value of {@code step} parameter.
+ *
+ * @param step delay (in milliseconds) between successive assertion
+ * attempts
+ * @param duration number of milliseconds beyond the current time time,
+ * after which the failed assertions will be propagated and allowed
+ * to fail the test
+ * @param assertions runnable housing the test assertions
+ */
+ public static void assertAfter(int step, int duration,
+ Runnable assertions) {
+ assertAfter(step, step, duration, assertions);
+ }
+
+ /**
+ * Periodically runs the given runnable, which should contain a series of
+ * test assertions until all the assertions succeed, in which case it will
+ * return, or until the the time expires, in which case it will throw the
+ * first failed assertion error.
+ * <p>
+ * The start of the period is the current time and each successive
+ * assertion attempt is delayed by at least 10 milliseconds unless the
+ * {@code duration} is less than that, in which case the one and only
+ * assertion is made after that delay.
+ *
+ * @param duration number of milliseconds beyond the current time,
+ * after which the failed assertions will be propagated and allowed
+ * to fail the test
+ * @param assertions runnable housing the test assertions
+ */
+ public static void assertAfter(int duration, Runnable assertions) {
+ int step = Math.min(duration, Math.max(10, duration / 10));
+ assertAfter(step, duration, assertions);
+ }
+
+}