From 54fab606ee51e876d0c1ca9534f42f2d5ec5b023 Mon Sep 17 00:00:00 2001
From: Javier Infante <jabi@irontec.com>
Date: Tue, 29 Nov 2016 21:58:51 +0100
Subject: [PATCH] add basic unit-tests for murmurhash3.js

---
 test/unit/jasmine-boot.js     | 12 ++++----
 test/unit/murmurhash3_spec.js | 52 +++++++++++++++++++++++++++++++++++
 test/unit/unit_test.html      |  1 +
 3 files changed, 60 insertions(+), 5 deletions(-)
 create mode 100644 test/unit/murmurhash3_spec.js

diff --git a/test/unit/jasmine-boot.js b/test/unit/jasmine-boot.js
index 145164d1c..fd2bc64a3 100644
--- a/test/unit/jasmine-boot.js
+++ b/test/unit/jasmine-boot.js
@@ -49,14 +49,15 @@ function initializePDFJS(callback) {
       'pdfjs/core/fonts', 'pdfjs/core/ps_parser', 'pdfjs/core/function',
       'pdfjs/core/parser', 'pdfjs/core/evaluator', 'pdfjs/core/cmap',
       'pdfjs/core/worker', 'pdfjs/core/network', 'pdfjs/core/type1_parser',
-      'pdfjs/core/cff_parser', 'pdfjs/display/api', 'pdfjs/display/metadata',
-      'pdfjs/display/dom_utils', 'pdfjs-web/ui_utils', 'pdfjs/core/unicode',
-      'pdfjs/core/glyphlist'],
+      'pdfjs/core/cff_parser', 'pdfjs/core/murmurhash3', 'pdfjs/display/api',
+      'pdfjs/display/metadata', 'pdfjs/display/dom_utils', 'pdfjs-web/ui_utils',
+      'pdfjs/core/unicode', 'pdfjs/core/glyphlist'],
     function (sharedUtil, displayGlobal, corePrimitives, coreAnnotation,
               coreCrypto, coreStream, coreFonts, corePsParser, coreFunction,
               coreParser, coreEvaluator, coreCMap, coreWorker, coreNetwork,
-              coreType1Parser, coreCFFParser, displayAPI, displayMetadata,
-              displayDOMUtils, webUIUtils, coreUnicode, coreGlyphList) {
+              coreType1Parser, coreCFFParser, coreMurmurHash3, displayAPI,
+              displayMetadata, displayDOMUtils, webUIUtils, coreUnicode,
+              coreGlyphList) {
 
       pdfjsLibs = {
         sharedUtil: sharedUtil,
@@ -75,6 +76,7 @@ function initializePDFJS(callback) {
         coreNetwork: coreNetwork,
         coreType1Parser: coreType1Parser,
         coreCFFParser: coreCFFParser,
+        coreMurmurHash3: coreMurmurHash3,
         displayAPI: displayAPI,
         displayMetadata: displayMetadata,
         displayDOMUtils: displayDOMUtils,
diff --git a/test/unit/murmurhash3_spec.js b/test/unit/murmurhash3_spec.js
new file mode 100644
index 000000000..69865da4c
--- /dev/null
+++ b/test/unit/murmurhash3_spec.js
@@ -0,0 +1,52 @@
+/* globals jasmine, expect, it, describe, MurmurHash3_64 */
+
+'use strict';
+
+describe('MurmurHash3_64', function() {
+  it('instantiates without seed', function() {
+    var hash = new MurmurHash3_64();
+    expect(hash).toEqual(jasmine.any(MurmurHash3_64));
+  });
+  it('instantiates with seed', function() {
+    var hash = new MurmurHash3_64(1);
+    expect(hash).toEqual(jasmine.any(MurmurHash3_64));
+  });
+
+  var hexDigestExpected = 'f61cfdbfdae0f65e';
+  var sourceText = 'test';
+  var sourceCharCodes = [116, 101, 115, 116]; // 't','e','s','t'
+  it('correctly generates a hash from a string', function() {
+    var hash = new MurmurHash3_64();
+    hash.update(sourceText);
+    expect(hash.hexdigest()).toEqual(hexDigestExpected);
+  });
+  it('correctly generates a hash from a Uint8Array', function() {
+    var hash = new MurmurHash3_64();
+    hash.update(new Uint8Array(sourceCharCodes));
+    expect(hash.hexdigest()).toEqual(hexDigestExpected);
+  });
+  it('correctly generates a hash from a Uint32Array', function() {
+    var hash = new MurmurHash3_64();
+    hash.update(new Uint32Array(sourceCharCodes));
+    expect(hash.hexdigest()).toEqual(hexDigestExpected);
+  });
+
+  it('changes the hash after update without seed', function() {
+    var hash = new MurmurHash3_64();
+    var hexdigest1, hexdigest2;
+    hash.update(sourceText);
+    hexdigest1 = hash.hexdigest();
+    hash.update(sourceText);
+    hexdigest2 = hash.hexdigest();
+    expect(hexdigest1).not.toEqual(hexdigest2);
+  });
+  it('changes the hash after update with seed', function() {
+    var hash = new MurmurHash3_64(1);
+    var hexdigest1, hexdigest2;
+    hash.update(sourceText);
+    hexdigest1 = hash.hexdigest();
+    hash.update(sourceText);
+    hexdigest2 = hash.hexdigest();
+    expect(hexdigest1).not.toEqual(hexdigest2);
+  });
+});
\ No newline at end of file
diff --git a/test/unit/unit_test.html b/test/unit/unit_test.html
index 0b7a125e5..62b207ed9 100644
--- a/test/unit/unit_test.html
+++ b/test/unit/unit_test.html
@@ -30,6 +30,7 @@
   <script src="annotation_layer_spec.js"></script>
   <script src="network_spec.js"></script>
   <script src="dom_utils_spec.js"></script>
+  <script src="murmurhash3_spec.js"></script>
 </head>
 <body>
 </body>