287 строки
9.3 KiB
JavaScript
287 строки
9.3 KiB
JavaScript
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
|
|
//
|
|
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
|
|
//
|
|
// Originally from narwhal.js (http://narwhaljs.org)
|
|
// Copyright (c) 2009 Thomas Robinson <280north.com>
|
|
//
|
|
// 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 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.
|
|
|
|
// UTILITY
|
|
var inherits = require('sys').inherits;
|
|
var pSlice = Array.prototype.slice;
|
|
|
|
// 1. The assert module provides functions that throw
|
|
// AssertionError's when particular conditions are not met. The
|
|
// assert module must conform to the following interface.
|
|
|
|
var assert = exports;
|
|
|
|
// 2. The AssertionError is defined in assert.
|
|
// new assert.AssertionError({message: message, actual: actual, expected: expected})
|
|
|
|
assert.AssertionError = function AssertionError (options) {
|
|
this.name = "AssertionError";
|
|
this.message = options.message;
|
|
this.actual = options.actual;
|
|
this.expected = options.expected;
|
|
this.operator = options.operator;
|
|
var stackStartFunction = options.stackStartFunction || fail;
|
|
|
|
if (Error.captureStackTrace) {
|
|
Error.captureStackTrace(this, stackStartFunction);
|
|
}
|
|
};
|
|
inherits(assert.AssertionError, Error);
|
|
|
|
assert.AssertionError.prototype.toString = function() {
|
|
if (this.message) {
|
|
return [this.name+":", this.message].join(' ');
|
|
} else {
|
|
return [ this.name+":"
|
|
, JSON.stringify(this.expected )
|
|
, this.operator
|
|
, JSON.stringify(this.actual)
|
|
].join(" ");
|
|
}
|
|
}
|
|
|
|
// assert.AssertionError instanceof Error
|
|
|
|
assert.AssertionError.__proto__ = Error.prototype;
|
|
|
|
// At present only the three keys mentioned above are used and
|
|
// understood by the spec. Implementations or sub modules can pass
|
|
// other keys to the AssertionError's constructor - they will be
|
|
// ignored.
|
|
|
|
// 3. All of the following functions must throw an AssertionError
|
|
// when a corresponding condition is not met, with a message that
|
|
// may be undefined if not provided. All assertion methods provide
|
|
// both the actual and expected values to the assertion error for
|
|
// display purposes.
|
|
|
|
function fail(actual, expected, message, operator, stackStartFunction) {
|
|
throw new assert.AssertionError({
|
|
message: message,
|
|
actual: actual,
|
|
expected: expected,
|
|
operator: operator,
|
|
stackStartFunction: stackStartFunction
|
|
});
|
|
}
|
|
|
|
// EXTENSION! allows for well behaved errors defined elsewhere.
|
|
assert.fail = fail;
|
|
|
|
// 4. Pure assertion tests whether a value is truthy, as determined
|
|
// by !!guard.
|
|
// assert.ok(guard, message_opt);
|
|
// This statement is equivalent to assert.equal(true, guard,
|
|
// message_opt);. To test strictly for the value true, use
|
|
// assert.strictEqual(true, guard, message_opt);.
|
|
|
|
assert.ok = function ok(value, message) {
|
|
if (!!!value) fail(value, true, message, "==", assert.ok);
|
|
};
|
|
|
|
// 5. The equality assertion tests shallow, coercive equality with
|
|
// ==.
|
|
// assert.equal(actual, expected, message_opt);
|
|
|
|
assert.equal = function equal(actual, expected, message) {
|
|
if (actual != expected) fail(actual, expected, message, "==", assert.equal);
|
|
};
|
|
|
|
// 6. The non-equality assertion tests for whether two objects are not equal
|
|
// with != assert.notEqual(actual, expected, message_opt);
|
|
|
|
assert.notEqual = function notEqual(actual, expected, message) {
|
|
if (actual == expected) {
|
|
fail(actual, expected, message, "!=", assert.notEqual);
|
|
}
|
|
};
|
|
|
|
// 7. The equivalence assertion tests a deep equality relation.
|
|
// assert.deepEqual(actual, expected, message_opt);
|
|
|
|
assert.deepEqual = function deepEqual(actual, expected, message) {
|
|
if (!_deepEqual(actual, expected)) {
|
|
fail(actual, expected, message, "deepEqual", assert.deepEqual);
|
|
}
|
|
};
|
|
|
|
function _deepEqual(actual, expected) {
|
|
// 7.1. All identical values are equivalent, as determined by ===.
|
|
if (actual === expected) {
|
|
return true;
|
|
|
|
// 7.2. If the expected value is a Date object, the actual value is
|
|
// equivalent if it is also a Date object that refers to the same time.
|
|
} else if (actual instanceof Date && expected instanceof Date) {
|
|
return actual.getTime() === expected.getTime();
|
|
|
|
// 7.3. Other pairs that do not both pass typeof value == "object",
|
|
// equivalence is determined by ==.
|
|
} else if (typeof actual != 'object' && typeof expected != 'object') {
|
|
return actual == expected;
|
|
|
|
// 7.4. For all other Object pairs, including Array objects, equivalence is
|
|
// determined by having the same number of owned properties (as verified
|
|
// with Object.prototype.hasOwnProperty.call), the same set of keys
|
|
// (although not necessarily the same order), equivalent values for every
|
|
// corresponding key, and an identical "prototype" property. Note: this
|
|
// accounts for both named and indexed properties on Arrays.
|
|
} else {
|
|
return objEquiv(actual, expected);
|
|
}
|
|
}
|
|
|
|
function isUndefinedOrNull (value) {
|
|
return value === null || value === undefined;
|
|
}
|
|
|
|
function isArguments (object) {
|
|
return Object.prototype.toString.call(object) == '[object Arguments]';
|
|
}
|
|
|
|
function objEquiv (a, b) {
|
|
if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
|
|
return false;
|
|
// an identical "prototype" property.
|
|
if (a.prototype !== b.prototype) return false;
|
|
//~~~I've managed to break Object.keys through screwy arguments passing.
|
|
// Converting to array solves the problem.
|
|
if (isArguments(a)) {
|
|
if (!isArguments(b)) {
|
|
return false;
|
|
}
|
|
a = pSlice.call(a);
|
|
b = pSlice.call(b);
|
|
return _deepEqual(a, b);
|
|
}
|
|
try{
|
|
var ka = Object.keys(a),
|
|
kb = Object.keys(b),
|
|
key, i;
|
|
} catch (e) {//happens when one is a string literal and the other isn't
|
|
return false;
|
|
}
|
|
// having the same number of owned properties (keys incorporates hasOwnProperty)
|
|
if (ka.length != kb.length)
|
|
return false;
|
|
//the same set of keys (although not necessarily the same order),
|
|
ka.sort();
|
|
kb.sort();
|
|
//~~~cheap key test
|
|
for (i = ka.length - 1; i >= 0; i--) {
|
|
if (ka[i] != kb[i])
|
|
return false;
|
|
}
|
|
//equivalent values for every corresponding key, and
|
|
//~~~possibly expensive deep test
|
|
for (i = ka.length - 1; i >= 0; i--) {
|
|
key = ka[i];
|
|
if (!_deepEqual(a[key], b[key] ))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// 8. The non-equivalence assertion tests for any deep inequality.
|
|
// assert.notDeepEqual(actual, expected, message_opt);
|
|
|
|
assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
|
|
if (_deepEqual(actual, expected)) {
|
|
fail(actual, expected, message, "notDeepEqual", assert.notDeepEqual);
|
|
}
|
|
};
|
|
|
|
// 9. The strict equality assertion tests strict equality, as determined by ===.
|
|
// assert.strictEqual(actual, expected, message_opt);
|
|
|
|
assert.strictEqual = function strictEqual(actual, expected, message) {
|
|
if (actual !== expected) {
|
|
fail(actual, expected, message, "===", assert.strictEqual);
|
|
}
|
|
};
|
|
|
|
// 10. The strict non-equality assertion tests for strict inequality, as determined by !==.
|
|
// assert.notStrictEqual(actual, expected, message_opt);
|
|
|
|
assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
|
|
if (actual === expected) {
|
|
fail(actual, expected, message, "!==", assert.notStrictEqual);
|
|
}
|
|
};
|
|
|
|
function _throws (shouldThrow, block, err, message) {
|
|
var exception = null,
|
|
threw = false,
|
|
typematters = true;
|
|
|
|
message = message || "";
|
|
|
|
//handle optional arguments
|
|
if (arguments.length == 3) {
|
|
if (typeof(err) == "string") {
|
|
message = err;
|
|
typematters = false;
|
|
}
|
|
} else if (arguments.length == 2) {
|
|
typematters = false;
|
|
}
|
|
|
|
try {
|
|
block();
|
|
} catch (e) {
|
|
threw = true;
|
|
exception = e;
|
|
}
|
|
|
|
if (shouldThrow && !threw) {
|
|
fail( "Missing expected exception"
|
|
+ (err && err.name ? " ("+err.name+")." : '.')
|
|
+ (message ? " " + message : "")
|
|
);
|
|
}
|
|
if (!shouldThrow && threw && typematters && exception instanceof err) {
|
|
fail( "Got unwanted exception"
|
|
+ (err && err.name ? " ("+err.name+")." : '.')
|
|
+ (message ? " " + message : "")
|
|
);
|
|
}
|
|
if ((shouldThrow && threw && typematters && !(exception instanceof err)) ||
|
|
(!shouldThrow && threw)) {
|
|
throw exception;
|
|
}
|
|
}
|
|
|
|
// 11. Expected to throw an error:
|
|
// assert.throws(block, Error_opt, message_opt);
|
|
|
|
assert.throws = function(block, /*optional*/error, /*optional*/message) {
|
|
_throws.apply(this, [true].concat(pSlice.call(arguments)));
|
|
};
|
|
|
|
// EXTENSION! This is annoying to write outside this module.
|
|
assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
|
|
_throws.apply(this, [false].concat(pSlice.call(arguments)));
|
|
};
|
|
|