HexHelper unit tests

Improved code coverage.

Change-Id: Ic3503ae79199767f3162c861f13ff1ecc889e1ec
Issue-ID: APPC-742
Signed-off-by: Jakub Dudycz <jakub.dudycz@nokia.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/appc-common/src/test/java/org/onap/appc/encryption/HexHelperTest.java b/appc-common/src/test/java/org/onap/appc/encryption/HexHelperTest.java
new file mode 100644
index 000000000..7dce88e20
--- /dev/null
+++ b/appc-common/src/test/java/org/onap/appc/encryption/HexHelperTest.java
@@ -0,0 +1,79 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Solutions and Networks
+ * =============================================================================
+ * Licensed 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.appc.encryption;
+
+import static com.google.common.collect.Lists.newArrayList;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+import org.junit.Test;
+
+public class HexHelperTest {
+
+    private final List<Character> hexChars =
+        newArrayList('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B','C', 'D', 'E', 'F');
+
+    @Test(expected = EncryptionException.class)
+    public void convertHexToBytes_should_throw_given_null() throws EncryptionException {
+
+        HexHelper.convertHexToBytes(null);
+    }
+
+    @Test(expected = EncryptionException.class)
+    public void convertHexToBytes_should_throw_given_non_hexadecimal_string() throws EncryptionException {
+
+        HexHelper.convertHexToBytes("125FET4A");
+    }
+
+    @Test
+    public void convertHexToBytes_should_convert_hexadecimal_string_to_byte_array() throws EncryptionException {
+
+        byte[] result = HexHelper.convertHexToBytes("125FE4A");
+
+        assertNotEquals(0, result.length);
+    }
+
+
+    @Test(expected = EncryptionException.class)
+    public void convertBytesToHex_should_throw_given_null() throws EncryptionException {
+
+        HexHelper.convertBytesToHex(null);
+    }
+
+
+    @Test
+    public void convertBytesToHex_should_convert_byte_array_to_hexadecimal_string() throws EncryptionException {
+
+        String resultString = HexHelper.convertBytesToHex(new byte[]{24, -1, 85, 99});
+        for (char ch : resultString.toCharArray()) {
+            assertTrue(hexChars.contains(ch));
+        }
+
+        byte[] resultArray = HexHelper.convertHexToBytes("A56C9ED17");
+        assertEquals("0A56C9ED17", HexHelper.convertBytesToHex(resultArray));
+    }
+
+}