Added Vigenere cipher

src/test/java/mattrixwv/CipherStreamJava/TestVigenere.java

@@ -0,0 +1,65 @@
+//CipherStreamJava/src/main/java/mattrixwv/CipherStreamJava/TestVigenere.java
+//Matthew Ellison
+// Created: 07-25-21
+//Modified: 07-25-21
+//These are the tests for the Vigenere class
+package mattrixwv.CipherStreamJava;
+
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+
+public class TestVigenere{
+	@Test
+	public void testDecode() throws Exception{
+		Vigenere cipher = new Vigenere();
+
+		//Test 1
+		String input = "xzb";
+		String keyword = "xyz";
+		String correctOutput = "ABC";
+		String output = cipher.decode(keyword, input);
+		assertEquals("Vigenere Decoding failed the first test", correctOutput, output);
+
+		//Test 2
+		input = "LXFOPVEFRNHR";
+		keyword = "LEMON";
+		correctOutput = "ATTACKATDAWN";
+		output = cipher.decode(keyword, input);
+		assertEquals("Vigenere Decoding failed the second test", correctOutput, output);
+
+		//Test 3
+		input = "CSASTPKVSIQUTGQUCSASTPIUAQJB";
+		keyword = "ABCD";
+		correctOutput = "CRYPTOISSHORTFORCRYPTOGRAPHY";
+		output = cipher.decode(keyword, input);
+		assertEquals("Vigenere Decoding failed the third test", correctOutput, output);
+	}
+	@Test
+	public void testEncode() throws Exception{
+		Vigenere cipher = new Vigenere();
+
+		//Test 1
+		String input = "abc";
+		String keyword = "xyz";
+		String correctOutput = "XZB";
+		String output = cipher.encode(keyword, input);
+		assertEquals("Vigenere Encoding failed the first test", correctOutput, output);
+
+		//Test 2
+		input = "Attack at dawn";
+		keyword = "Lemon";
+		correctOutput = "LXFOPVEFRNHR";
+		output = cipher.encode(keyword, input);
+		assertEquals("Vigenere Encoding failed the second test", correctOutput, output);
+
+		//Test 3
+		input = "'Crypto' is short for 'Cryptography'";
+		keyword = "abcd";
+		correctOutput = "CSASTPKVSIQUTGQUCSASTPIUAQJB";
+		output = cipher.encode(keyword, input);
+		assertEquals("Vigenere Encoding failed the third test", correctOutput, output);
+	}
+}