Add a unit test for the ByteArrayUtil class
Test cases added:
- Ensure that the ByteArrayUtil class is a proper
utility class.
- Test that passing in a null array results in an empty string
- Test the formatting of real data into a hex string
Change-Id: Ibbfd2ebdf8c5daff0569862ae3dc8c898d0d0384
diff --git a/src/test/java/net/onrc/onos/core/datastore/utils/ByteArrayUtilTest.java b/src/test/java/net/onrc/onos/core/datastore/utils/ByteArrayUtilTest.java
new file mode 100644
index 0000000..926135f
--- /dev/null
+++ b/src/test/java/net/onrc/onos/core/datastore/utils/ByteArrayUtilTest.java
@@ -0,0 +1,70 @@
+package net.onrc.onos.core.datastore.utils;
+
+import org.hamcrest.MatcherAssert;
+import org.junit.Test;
+
+import static net.onrc.onos.core.util.UtilityClassChecker.assertThatClassIsUtility;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Test cases for the ByteArrayUtil class.
+ */
+
+public class ByteArrayUtilTest {
+
+ /**
+ * Make sure that the ByteArrayUtil class is a utility class.
+ */
+ @Test
+ public void testForWellDefinedUtilityClass() throws Exception {
+ assertThatClassIsUtility(ByteArrayUtil.class);
+ }
+
+ /**
+ * Test that when given a null array for the bytes to convert, the hex
+ * conversion routines return an empty StringBuilder.
+ */
+ @Test
+ public void testToHexStringBuilderNullParameter() {
+ final StringBuilder allocatedBuilder =
+ ByteArrayUtil.toHexStringBuilder(null, "");
+ MatcherAssert.assertThat(allocatedBuilder, is(notNullValue()));
+ MatcherAssert.assertThat(allocatedBuilder.toString(), is(equalTo("")));
+
+ final StringBuilder providedBuilder = new StringBuilder();
+ final StringBuilder returnedBuilder = ByteArrayUtil.toHexStringBuilder
+ (null, "", providedBuilder);
+ MatcherAssert.assertThat(providedBuilder, is(notNullValue()));
+ MatcherAssert.assertThat(returnedBuilder, is(equalTo(providedBuilder)));
+ MatcherAssert.assertThat(providedBuilder.toString(), is(equalTo("")));
+ }
+
+ /**
+ * Test the array byte to String conversion routines to be sure the data
+ * is converted properly.
+ */
+ @Test
+ public void testToHexStringBuilder() {
+ final byte[] testData = {0x1, 0x2, 0x3, 0x4, 0x5,
+ 0x3b, 0x3c, 0x3d, 0x3e, 0x3f};
+ final String expectedResult = "1:2:3:4:5:3b:3c:3d:3e:3f";
+
+ final StringBuilder result =
+ ByteArrayUtil.toHexStringBuilder(testData, ":");
+
+ MatcherAssert.assertThat(result, is(notNullValue()));
+ MatcherAssert.assertThat(result.toString(),
+ is(equalTo(expectedResult)));
+
+ final StringBuilder providedBuilder = new StringBuilder();
+ final StringBuilder returnedBuilder =
+ ByteArrayUtil.toHexStringBuilder(testData, ":", providedBuilder);
+
+ MatcherAssert.assertThat(returnedBuilder, is(notNullValue()));
+ MatcherAssert.assertThat(returnedBuilder, is(equalTo(providedBuilder)));
+ MatcherAssert.assertThat(returnedBuilder.toString(),
+ is(equalTo(expectedResult)));
+ }
+}