DXE-3345 Added some unit tests

Author: mgwoj

README.md

@@ -1,14 +1,14 @@
 # EdgeAuth-Token-Java: Akamai Edge Authorization Token for Java
 
 [![Maven Central](https://img.shields.io/badge/maven%20central-0.2.0-brightgreen.svg)](http://search.maven.org/#artifactdetails%7Ccom.akamai%7Cedgeauth%7C0.2.0%7C)
-[![Build Status](https://travis-ci.org/akamai/EdgeAuth-Token-Java.svg?branch=master)](https://github.com/akamai/EdgeAuth-Token-Java/actions/workflows/check.yml/badge.svg)
+[![Build Status](https://github.com/akamai/EdgeAuth-Token-Java/actions/workflows/check.yml/badge.svg)
 [![License](http://img.shields.io/:license-apache-blue.svg)](https://github.com/akamai/EdgeAuth-Token-Java/blob/master/LICENSE)
 
 EdgeAuth-Token-Java is Akamai Edge Authorization Token in the HTTP Cookie, Query String and Header for a client.
 You can configure it in the Property Manager at https://control.akamai.com.
 It's a behavior which is Auth Token 2.0 Verification.
 
-EdgeAuth-Token-Java supports Java 1.6+.
+EdgeAuth-Token-Java supports Java 8+.
 
 <div style="text-align:center"><img src=https://github.com/AstinCHOI/akamai-asset/blob/master/edgeauth/edgeauth.png?raw=true /></div>
 

src/main/java/com/akamai/edgeauth/EdgeAuth.java

@@ -303,7 +303,7 @@ private String generateToken(String path, boolean isUrl) throws EdgeAuthExceptio
             hmac.init(secretKey);
 
             byte[] hmacBytes = hmac.doFinal(hashSource.toString().getBytes());
-            return newToken.toString() + "hmac=" +
+            return newToken + "hmac=" +
                     String.format("%0" + (2*hmac.getMacLength()) +  "x", new BigInteger(1, hmacBytes));
         } catch (NoSuchAlgorithmException | InvalidKeyException e) {
             throw new EdgeAuthException(e.toString());

src/test/java/com/akamai/edgeauth/EdgeAuthTest.java

@@ -0,0 +1,72 @@
+package com.akamai.edgeauth;
+
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import java.time.Instant;
+import java.util.regex.Pattern;
+
+// Test content taken from https://github.com/mobilerider/EdgeAuth-Token-Golang/blob/master/edgeauth_test.go
+public class EdgeAuthTest {
+
+    private static final String sampleKey = "52a152a152a152a152a152a152a1";
+    private static final String samplePath = "/this/is/a/test";
+
+    @Test
+    public void testGenerateAclToken() throws EdgeAuthException {
+        EdgeAuth ea = new EdgeAuthBuilder().algorithm("SHA256").key(sampleKey).startTime(Instant.now().toEpochMilli()/1000).windowSeconds(300).build();
+        String token = ea.generateACLToken(samplePath);
+
+        String[] fields = token.split(String.valueOf(ea.getFieldDelimiter()));
+        Assert.assertEquals("ACL token should consists of 4 parts: " + token, 4, fields.length);
+
+        String expectedStart = "st=" + ea.getStartTime();
+        Assert.assertEquals("Start field does not match", expectedStart, fields[0]);
+
+        String expectedExpire = "exp=" + (ea.getStartTime() + ea.getWindowSeconds());
+        Assert.assertEquals("Expire field does not match", expectedExpire, fields[1]);
+
+        String expectedAcl = "acl=.+";
+        Assert.assertTrue("ACL field does not match: " + fields[2], Pattern.matches(expectedAcl, fields[2]));
+
+        String expectedHmac = "hmac=[a-f0-9]{64}";
+        Assert.assertTrue("Hmac field does not match: " + fields[3], Pattern.matches(expectedHmac, fields[3]));
+    }
+
+    @Test
+    public void testGenerateUrlToken() throws EdgeAuthException {
+        EdgeAuth ea = new EdgeAuthBuilder().algorithm("SHA256").key(sampleKey).startTime(Instant.now().toEpochMilli()/1000).windowSeconds(300).build();
+        String token = ea.generateURLToken(samplePath);
+
+        String[] fields = token.split(String.valueOf(ea.getFieldDelimiter()));
+        Assert.assertEquals("URL token should consists of 3 parts: " + token, 3, fields.length);
+
+        String expectedStart = "st=" + ea.getStartTime();
+        Assert.assertEquals("Start field does not match", expectedStart, fields[0]);
+
+        String expectedExpire = "exp=" + (ea.getStartTime() + ea.getWindowSeconds());
+        Assert.assertEquals("Expire field does not match", expectedExpire, fields[1]);
+
+        String expectedHmac = "hmac=[a-f0-9]{64}";
+        Assert.assertTrue("Hmac field does not match: " + fields[2], Pattern.matches(expectedHmac, fields[2]));
+    }
+
+    @Rule
+    public ExpectedException exceptionRule = ExpectedException.none();
+
+    @Test
+    public void testGenerateTokenWithInvalidStartAndEndDate() throws EdgeAuthException {
+        exceptionRule.expect(EdgeAuthException.class);
+        exceptionRule.expectMessage("Token will have already expired.");
+
+        long startTimeSeconds = Instant.now().toEpochMilli() / 1000;
+        EdgeAuth ea = new EdgeAuthBuilder().algorithm("SHA256").key(sampleKey)
+                .startTime(startTimeSeconds + 300)
+                .endTime(startTimeSeconds).build();
+        ea.generateURLToken(samplePath);
+
+    }
+
+}