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var Stream = require('stream');
var deepEqual = require('deep-equal');
var defined = require('defined');
var path = require('path');
var inherits = require('util').inherits;
var EventEmitter = require('events').EventEmitter;
module.exports = Test;
var nextTick = typeof setImmediate !== 'undefined'
? setImmediate
: process.nextTick
;
inherits(Test, EventEmitter);
function Test (name_, opts_, cb_) {
var self = this;
var name = '(anonymous)';
var opts = {};
var cb;
for (var i = 0; i < arguments.length; i++) {
switch (typeof arguments[i]) {
case 'string':
name = arguments[i];
break;
case 'object':
opts = arguments[i] || opts;
break;
case 'function':
cb = arguments[i];
}
}
this.readable = true;
this.name = name || '(anonymous)';
this.assertCount = 0;
this.pendingCount = 0;
this._skip = opts.skip || false;
this._plan = undefined;
this._cb = cb;
this._progeny = [];
this._ok = true;
}
Test.prototype.run = function () {
if (this._skip) {
return this.end();
}
this.emit('prerun');
try {
this._cb(this);
}
catch (err) {
this.error(err);
this.end();
return;
}
this.emit('run');
};
Test.prototype.test = function (name, opts, cb) {
var self = this;
var t = new Test(name, opts, cb);
this._progeny.push(t);
this.pendingCount++;
this.emit('test', t);
t.on('prerun', function () {
self.assertCount++;
})
if (!self._pendingAsserts()) {
nextTick(function () {
self.end();
});
}
nextTick(function() {
if (!self._plan && self.pendingCount == self._progeny.length) {
self.end();
}
});
};
Test.prototype.comment = function (msg) {
this.emit('result', msg.trim().replace(/^#\s*/, ''));
};
Test.prototype.plan = function (n) {
this._plan = n;
this.emit('plan', n);
};
Test.prototype.end = function () {
var self = this;
if (this._progeny.length) {
var t = this._progeny.shift();
t.on('end', function () {
self.end();
});
t.run();
return;
}
if (!this.ended) this.emit('end');
var pendingAsserts = this._pendingAsserts();
if (!this._planError && this._plan !== undefined && pendingAsserts) {
this._planError = true;
this.fail('plan != count', {
expected : this._plan,
actual : this.assertCount
});
}
this.ended = true;
};
Test.prototype._exit = function () {
if (this._plan !== undefined &&
!this._planError && this.assertCount !== this._plan) {
this._planError = true;
this.fail('plan != count', {
expected : this._plan,
actual : this.assertCount,
exiting : true
});
}
else if (!this.ended) {
this.fail('test exited without ending', {
exiting: true
});
}
};
Test.prototype._pendingAsserts = function () {
if (this._plan === undefined) {
return 1;
} else {
return this._plan -
(this._progeny.length + this.assertCount);
}
}
Test.prototype._assert = function assert (ok, opts) {
var self = this;
var extra = opts.extra || {};
var res = {
id : self.assertCount ++,
ok : Boolean(ok),
skip : defined(extra.skip, opts.skip),
name : defined(extra.message, opts.message, '(unnamed assert)'),
operator : defined(extra.operator, opts.operator),
actual : defined(extra.actual, opts.actual),
expected : defined(extra.expected, opts.expected)
};
this._ok = Boolean(this._ok && ok);
if (!ok) {
res.error = defined(extra.error, opts.error, new Error(res.name));
}
var e = new Error('exception');
var err = (e.stack || '').split('\n');
var dir = path.dirname(__dirname) + '/';
for (var i = 0; i < err.length; i++) {
var m = /^\s*\bat\s+(.+)/.exec(err[i]);
if (!m) continue;
var s = m[1].split(/\s+/);
var filem = /(\/[^:\s]+:(\d+)(?::(\d+))?)/.exec(s[1]);
if (!filem) {
filem = /(\/[^:\s]+:(\d+)(?::(\d+))?)/.exec(s[3]);
if (!filem) continue;
}
if (filem[1].slice(0, dir.length) === dir) continue;
res.functionName = s[0];
res.file = filem[1];
res.line = Number(filem[2]);
if (filem[3]) res.column = filem[3];
res.at = m[1];
break;
}
self.emit('result', res);
var pendingAsserts = self._pendingAsserts();
if (!pendingAsserts) {
if (extra.exiting) {
self.end();
} else {
nextTick(function () {
self.end();
});
}
}
if (!self._planError && pendingAsserts < 0) {
self._planError = true;
self.fail('plan != count', {
expected : self._plan,
actual : self._plan - pendingAsserts
});
}
};
Test.prototype.fail = function (msg, extra) {
this._assert(false, {
message : msg,
operator : 'fail',
extra : extra
});
};
Test.prototype.pass = function (msg, extra) {
this._assert(true, {
message : msg,
operator : 'pass',
extra : extra
});
};
Test.prototype.skip = function (msg, extra) {
this._assert(true, {
message : msg,
operator : 'skip',
skip : true,
extra : extra
});
};
Test.prototype.ok
= Test.prototype['true']
= Test.prototype.assert
= function (value, msg, extra) {
this._assert(value, {
message : msg,
operator : 'ok',
expected : true,
actual : value,
extra : extra
});
};
Test.prototype.notOk
= Test.prototype['false']
= Test.prototype.notok
= function (value, msg, extra) {
this._assert(!value, {
message : msg,
operator : 'notOk',
expected : false,
actual : value,
extra : extra
});
};
Test.prototype.error
= Test.prototype.ifError
= Test.prototype.ifErr
= Test.prototype.iferror
= function (err, msg, extra) {
this._assert(!err, {
message : defined(msg, String(err)),
operator : 'error',
actual : err,
extra : extra
});
};
Test.prototype.equal
= Test.prototype.equals
= Test.prototype.isEqual
= Test.prototype.is
= Test.prototype.strictEqual
= Test.prototype.strictEquals
= function (a, b, msg, extra) {
this._assert(a === b, {
message : defined(msg, 'should be equal'),
operator : 'equal',
actual : a,
expected : b,
extra : extra
});
};
Test.prototype.notEqual
= Test.prototype.notEquals
= Test.prototype.notStrictEqual
= Test.prototype.notStrictEquals
= Test.prototype.isNotEqual
= Test.prototype.isNot
= Test.prototype.not
= Test.prototype.doesNotEqual
= Test.prototype.isInequal
= function (a, b, msg, extra) {
this._assert(a !== b, {
message : defined(msg, 'should not be equal'),
operator : 'notEqual',
actual : a,
notExpected : b,
extra : extra
});
};
Test.prototype.deepEqual
= Test.prototype.deepEquals
= Test.prototype.isEquivalent
= Test.prototype.same
= function (a, b, msg, extra) {
this._assert(deepEqual(a, b, { strict: true }), {
message : defined(msg, 'should be equivalent'),
operator : 'deepEqual',
actual : a,
expected : b,
extra : extra
});
};
Test.prototype.deepLooseEqual
= Test.prototype.looseEqual
= Test.prototype.looseEquals
= function (a, b, msg, extra) {
this._assert(deepEqual(a, b), {
message : defined(msg, 'should be equivalent'),
operator : 'deepLooseEqual',
actual : a,
expected : b,
extra : extra
});
};
Test.prototype.notDeepEqual
= Test.prototype.notEquivalent
= Test.prototype.notDeeply
= Test.prototype.notSame
= Test.prototype.isNotDeepEqual
= Test.prototype.isNotDeeply
= Test.prototype.isNotEquivalent
= Test.prototype.isInequivalent
= function (a, b, msg, extra) {
this._assert(!deepEqual(a, b, { strict: true }), {
message : defined(msg, 'should not be equivalent'),
operator : 'notDeepEqual',
actual : a,
notExpected : b,
extra : extra
});
};
Test.prototype.notDeepLooseEqual
= Test.prototype.notLooseEqual
= Test.prototype.notLooseEquals
= function (a, b, msg, extra) {
this._assert(deepEqual(a, b), {
message : defined(msg, 'should be equivalent'),
operator : 'notDeepLooseEqual',
actual : a,
expected : b,
extra : extra
});
};
Test.prototype['throws'] = function (fn, expected, msg, extra) {
if (typeof expected === 'string') {
msg = expected;
expected = undefined;
}
var caught = undefined;
try {
fn();
}
catch (err) {
caught = { error : err };
var message = err.message;
delete err.message;
err.message = message;
}
var passed = caught;
if (expected instanceof RegExp) {
passed = expected.test(caught && caught.error);
expected = String(expected);
}
this._assert(passed, {
message : defined(msg, 'should throw'),
operator : 'throws',
actual : caught && caught.error,
expected : expected,
error: !passed && caught && caught.error,
extra : extra
});
};
Test.prototype.doesNotThrow = function (fn, expected, msg, extra) {
if (typeof expected === 'string') {
msg = expected;
expected = undefined;
}
var caught = undefined;
try {
fn();
}
catch (err) {
caught = { error : err };
}
this._assert(!caught, {
message : defined(msg, 'should throw'),
operator : 'throws',
actual : caught && caught.error,
expected : expected,
error : caught && caught.error,
extra : extra
});
};
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