Add native base64 test (atob and btoa).

Interestingly it turns out that using the native base64 routines does not improve performance. Likely because the actual time is in marshalling/unmarshalling between strings and arrays (and associated garbage collection overhead) which has to be done either way.

Add native base64 test (atob and btoa).
Interestingly it turns out that using the native base64 routines does not improve performance. Likely because the actual time is in marshalling/unmarshalling between strings and arrays (and associated garbage collection overhead) which has to be done either way.
d798572d · Joel Martin · 77c7a454 · d798572d
Commit d798572d authored Jul 13, 2010 by Joel Martin
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base64.html tests/base64.html +74 -0

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--- a/tests/base64.html
+++ b/tests/base64.html
+<!DOCTYPE html> 
+<html xmlns="http://www.w3.org/1999/xhtml"> 
+  <head> 
+    <title>Native Base64 Tests</title> 
+    <script src="include/util.js"></script> 
+  </head> 
+  <body> 
+        <h1>Native Base64 Tests</h1> 
+ 
+        <br> 
+        Messages:<br> 
+        <textarea id="debug" style="font-size: 9px;" cols=80 rows=25></textarea> 
+    
+        <br>
+  </body> 
+ 
+<script> 
+    function debug(str) {
+        console.log(str);
+        cell = $('debug');
+        cell.innerHTML += str + "\n";
+        cell.scrollTop = cell.scrollHeight;
+    }
+
+    function assertRun(code, result) {
+        try {
+            var actual = eval(code);
+        } catch (exc) {
+            debug("FAIL: '" + code + "' threw an exception");
+            fail += 1;
+            return false;
+        }
+        if (actual !== result) {
+            debug("FAIL: '" + code + "' returned '" + actual + "', expected '" + result + "'");
+            fail += 1;
+            return false;
+        }
+        debug("PASS: '" + code + "' returned expected '" + result +"'");
+        pass += 1;
+        return true;
+    }
+
+    window.onload = function() {
+        var str;
+        debug('onload');
+        fail = 0;
+        pass = 0;
+        assertRun('window.btoa("hello world")', 'aGVsbG8gd29ybGQ=');
+        assertRun('window.atob("aGVsbG8gd29ybGQ=")', 'hello world');
+        assertRun('window.atob("YQ==")', 'a');
+        assertRun('window.atob("YWI=")', 'ab');
+        assertRun('window.atob("YWJj")', 'abc');
+        assertRun('window.atob("YWJjZA==")', 'abcd');
+        assertRun('window.atob("YWJjZGU=")', 'abcde');
+        assertRun('window.atob("YWJjZGVm")', 'abcdef');
+        assertRun('window.btoa("a")', 'YQ==');
+        assertRun('window.btoa("ab")', 'YWI=');
+        assertRun('window.btoa("abc")', 'YWJj');
+        assertRun('window.btoa("abcd")', 'YWJjZA==');
+        assertRun('window.btoa("abcde")', 'YWJjZGU=');
+        assertRun('window.btoa("abcdef")', 'YWJjZGVm');
+        assertRun('window.btoa("abcdefg")', 'YWJjZGVmZw==');
+        assertRun('window.btoa("abcdefgh")', 'YWJjZGVmZ2g=');
+
+        assertRun('typeof window.btoa', 'function');
+        assertRun('window.btoa("")', '');
+        assertRun('window.btoa(null)', '');
+        assertRun('window.atob(window.btoa(window))', window.toString()); // "[object DOMWindow]"
+        assertRun('window.btoa("\\u0080\\u0081")', 'gIE=');
+
+        debug("Tests failed: " + fail);
+        debug("Tests passed: " + pass);
+    }
+</script>