Abc Assembler Tests

It is possible to write tests using the abc assembler.  The assembler code can be found in /utils/abcasm.  Tests can be found in /test/acceptance/abcasm and end with the .abs extension.  The tests are run using the same script that is used for the actionscript tests.  

When run, the assembler tests include the abcasm/ file which defines the following functions:

START(Summary:String):void - Start a new test section described by Summary
END():void - Test section finished
COMPARE_STRICTEQ(name:String, expected:*, actual:*):void - Compare the results of a testcase where name is the testcase name
COMPARE_TYPEERROR(name:String, expected:*, actual:*):void - Special function for comparing TypeErrors (RuntimeErrors) - Will only compare the 
    first 22 chars of expected and actual so that test can be run in Release and ReleaseDebugger configurations.
COMPARE_NUMBEREQ(name:String, expected:*, actual:*, fractionDigits:int=-1):void - Compare 2 Numbers up to FractionDigits
      This is to be used for high precision numbers that may vary slightly due to platform differences.

Sample abcasm test

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is [Open Source Virtual Machine.].
 * The Initial Developer of the Original Code is
 * Adobe System Incorporated.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   Adobe AS3 Team
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

function main() {
    findproperty START 
    pushstring "instructions that start with the letter L" 
    callpropvoid START 1
    newfunction .function_id(runTest)
    call 0
    findproperty END
    callpropvoid END 0

function runTest()
    // test null <= null == True
    findproperty COMPARE_STRICTEQ
    pushstring "null lessequals null" // testname
    pushtrue // expected
    lessequals // actual
    callpropvoid COMPARE_STRICTEQ 3

    // Use .try / .catch to catch TypeError
    // convert_o null
    .try {
        findproperty FAIL
        pushstring "convert_o null"
        pushstring "exception should have been thrown: TypeError: Error #1009: Cannot access a property or method of a null object reference."
        callpropvoid FAIL 3
        jump finished_convert_o_null
    .catch {
        setlocal2   // save typeError
        findproperty COMPARE_TYPEERROR
        pushstring "convert_o null" // test name
        pushstring "TypeError: Error #1009" // expected
        getlocal2  // actual
        callpropvoid COMPARE_TYPEERROR 3