/*
Copyright (c) 2008 Greg Smith

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

suiteJS = new function() {

    this._lastPassed
    this._passCount = 0
    this._failCount = 0

    this._defaultDoMsg = function(msg, passFailStr) {
        document.write(passFailStr + ": " + msg + "<br/>")
    }

    this._doPass = function(msg) {
        this._defaultDoMsg(msg, '<span style="color:green;">PASS</span>')
    }
    this._doFail = function(msg) {
        this._defaultDoMsg(msg, '<span style="color:red;">FAIL</span>')
    }
    
    this._logMsg = function(msg, func) {
        if (this._name) {
            msg = this._name + "->" + this._testName + ": " + msg
        }
        func.call(this, msg)
    }
    
    this.fail = function(msg) {
        this._logMsg(msg, this._doFail)
        suiteJS._failCount++
        if (this._suiteFailCount !== undefined)
            this._suiteFailCount++
        this._lastPassed = false
        if (this._suiteFailCount !== undefined)
            throw "Test Failed"
        else
            return this
    }
     
    this.pass = function(msg) {
        this._logMsg(msg, this._doPass)
        suiteJS._passCount++
        if (this._suitePassCounts !== undefined) {
            if (this._suitePassCounts[this._testName] !== undefined)
                this._suitePassCounts[this._testName]++
            else
                this._suitePassCounts[this._testName] = 1
        }
        this._lastPassed = true
        return this
    }

    this._sendAssertMessage = function(obj1, obj2, msg, msgFunc) {
        obj1 = obj1 !== undefined ? obj1 : "Undefined"
        obj2 = obj2 !== undefined ? obj2 : "Undefined"
        var msgs = []
        if (msg === undefined)
            msgs.push("Assertion")
        else
            msgs.push(msg)
        if (obj2 !== "Undefined") {
            msgs.push('Expected: "' + obj1 + '"')
            msgs.push('Actual: "' + obj2 + '"')
        }
        else
            msgs.push('Asserted: "' + obj1 + '"')
        msgFunc.call(this, msgs.join(" -- "))
    }

    this._failAssert = function(obj1, obj2, msg) {
        this._sendAssertMessage(obj1, obj2, msg, this.fail)
    }
    
    this._passAssert = function(obj1, obj2, msg) {
        this._sendAssertMessage(obj1, obj2, msg, this.pass)
    }

    this.setPass = function(func) {
        this._doPass = func
        return this
    }
    this.setFail = function(func) {
        this._doFail = func
        return this
    }

    this.getPass = function() {
        return this._doPass
    }
    this.getFail = function() {
        return this._doFail
    }

    this._assertHelper = function(test, obj1, obj2, msg) {
        try {
            if (test())
                this._passAssert(obj1, obj2, msg)
            else
                this._failAssert(obj1, obj2, msg)
        }
        catch (e) {
            if (e === "Test Failed")
                throw e
            this._failAssert(obj1, obj2, "EXCEPTION IN ASSERT: " + e.name)
        }
    }

    this.assert = function(obj, msg) {
        this._assertHelper(function(){return obj}, obj, undefined, msg)
        return this
    }

    this.assertMatches = function(regex, actual, msg) {
        this._assertHelper(function(){return regex.test(actual)}, regex, actual, msg)
        return this
    }
    
    this.assertEquals = function(obj1, obj2, msg) {
        this._assertHelper(function(){return obj1 == obj2}, obj1, obj2, msg)
        return this
    }
    
    this.assertNotEqual = function(obj1, obj2, msg) {
        this._assertHelper(function(){return obj1 != obj2}, obj1, obj2, msg)
        return this
    }
    
    this.assertSame = function(obj1, obj2, msg) {
        this._assertHelper(function(){return obj1 === obj2}, obj1, obj2, msg)
        return this
    }
    
    this.assertSameType = function(obj1, obj2, msg) {
        this._assertHelper(function(){return typeof(obj1) === typeof(obj2)}, obj1, obj2, msg)
        return this
    }
    
    this.assertNull = function(obj, msg) {
        this._assertHelper(function(){return obj === null}, obj, undefined, msg)
        return this
    }
    
    this.assertNotNull = function(obj, msg) {
        this._assertHelper(function(){return obj !== null}, obj, undefined, msg)
        return this
    }
    
    this.assertDefined = function(obj, msg) {
        this._assertHelper(function(){return obj !== undefined}, obj, undefined, msg)
        return this
    }
    
    this.assertUndefined = function(obj, msg) {
        this._assertHelper(function(){return obj === undefined}, obj, undefined, msg)
        return this
    }
    
    this.assertTrue = function(obj, msg) {
        this._assertHelper(function(){return obj === true}, obj, undefined, msg)
        return this
    }
    
    this.assertFalse = function(obj, msg) {
        this._assertHelper(function(){return obj === false}, obj, undefined, msg)
        return this
    }
    
    this.getPassCount = function() {
        return this._passCount
    }
    
    this.getFailCount = function() {
        return this._failCount
    }
    
    this.resetCounts = function() {
        this._passCount = 0
        this._failCount = 0
    }
    
    this.getStatus = function() {
        return "Passed " + this._passCount + " out of " + (this._passCount + this._failCount)
    }

    this.ok = function() {
        return this._lastPassed
    }
    
    suiteCount = 0
    function JSSuite(arg) {

        this._suitePassCounts = {}
        this._suiteFailCount = 0

        this.getFailCount = function() {
            return this._suiteFailCount
        }

        this.getPassCount = function() {
            var count = 0
            for (testName in this._suitePassCounts)
                count++
            return count
        }

        this.getStatus = function() {
            return "Passed " + this.getPassCount() + " out of " +
                   (this.getPassCount() + this.getFailCount())
        }

        if (arg)
            this._name = arg
        if (!arg)
            this._name = "Suite#" + ++suiteCount
        this.setUp = null
        this.tearDown = null
        
        this.run = function() {
            for (prop in this) {
                if (/^test/.test(prop)) {
                    if (this.setUp)
                        this.setUp()
                    this._testName = prop
                    try {
                        this[prop]()
                    }
                    catch (e) {
                        if (e !== "Test Failed")
                            throw e
                    }
                    if (this.tearDown)
                        this.tearDown()
                }
            }
        }

    }
    JSSuite.prototype = this
    
    this.createSuite = function(arg) {
        return new JSSuite(arg)
    }

}()