tests initialization

package.json

@@ -22,7 +22,9 @@
     "babel-loader": "^6.2.4",
     "babel-polyfill": "^6.9.1",
     "babel-preset-es2015": "^6.9.0",
+    "chai": "^3.5.0",
     "lite-server": "^1.3.1",
+    "mocha": "^2.5.3",
     "source-map-support": "^0.4.0",
     "ts-loader": "^0.8.2",
     "typescript": "^1.8.10",
@@ -41,7 +43,8 @@
     "watch": "node_modules/.bin/webpack --watch",
     "lite": "lite-server",
     "start": "concurrent \"npm run tsc:w\" \"npm run lite\" ",
-    "tests": "node tests/dev-test.js"
+    "test": "node_modules/.bin/mocha --compilers ts:typescript",
+    "typings": "node_modules/.bin/typings install"
   },
   "author": {
     "name": "Timofey Kachalov"

test/utils.ts

@@ -0,0 +1,10 @@
+var assert = require('chai').assert;
+
+describe('Array', function() {
+    describe('#indexOf()', function () {
+        it('should return -1 when the value is not present', function () {
+            assert.equal(-1, [1,2,3].indexOf(5));
+            assert.equal(-1, [1,2,3].indexOf(0));
+        });
+    });
+});

typings.json

@@ -6,6 +6,8 @@
     "estree": "github:DefinitelyTyped/DefinitelyTyped/estree/estree.d.ts",
     "esprima": "github:DefinitelyTyped/DefinitelyTyped/esprima/esprima.d.ts",
     "escodegen": "github:DefinitelyTyped/DefinitelyTyped/escodegen/escodegen.d.ts",
-    "estraverse": "github:DefinitelyTyped/DefinitelyTyped/estraverse/estraverse.d.ts"
+    "estraverse": "github:DefinitelyTyped/DefinitelyTyped/estraverse/estraverse.d.ts",
+    "mocha": "github:DefinitelyTyped/DefinitelyTyped/mocha/mocha.d.ts",
+    "chai": "github:DefinitelyTyped/DefinitelyTyped/chai/chai.d.ts"
   }
 }

typings/browser.d.ts

@@ -1,5 +1,7 @@
+/// <reference path="browser/ambient/chai/index.d.ts" />
 /// <reference path="browser/ambient/escodegen/index.d.ts" />
 /// <reference path="browser/ambient/esprima/index.d.ts" />
 /// <reference path="browser/ambient/estraverse/index.d.ts" />
 /// <reference path="browser/ambient/estree/index.d.ts" />
+/// <reference path="browser/ambient/mocha/index.d.ts" />
 /// <reference path="browser/ambient/node/index.d.ts" />

typings/browser/ambient/chai/index.d.ts

@@ -0,0 +1,403 @@
+// Generated by typings
+// Source: https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/master/chai/chai.d.ts
+// Type definitions for chai 3.4.0
+// Project: http://chaijs.com/
+// Definitions by: Jed Mao <https://github.com/jedmao/>,
+//                 Bart van der Schoor <https://github.com/Bartvds>,
+//                 Andrew Brown <https://github.com/AGBrown>,
+//                 Olivier Chevet <https://github.com/olivr70>,
+//                 Matt Wistrand <https://github.com/mwistrand>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+// <reference path="../assertion-error/assertion-error.d.ts"/>
+
+declare namespace Chai {
+
+    interface ChaiStatic {
+        expect: ExpectStatic;
+        should(): Should;
+        /**
+         * Provides a way to extend the internals of Chai
+         */
+        use(fn: (chai: any, utils: any) => void): ChaiStatic;
+        assert: AssertStatic;
+        config: Config;
+        AssertionError: typeof AssertionError;
+    }
+
+    export interface ExpectStatic extends AssertionStatic {
+        fail(actual?: any, expected?: any, message?: string, operator?: string): void;
+    }
+
+    export interface AssertStatic extends Assert {
+    }
+
+    export interface AssertionStatic {
+        (target: any, message?: string): Assertion;
+    }
+
+    interface ShouldAssertion {
+        equal(value1: any, value2: any, message?: string): void;
+        Throw: ShouldThrow;
+        throw: ShouldThrow;
+        exist(value: any, message?: string): void;
+    }
+
+    interface Should extends ShouldAssertion {
+        not: ShouldAssertion;
+        fail(actual: any, expected: any, message?: string, operator?: string): void;
+    }
+
+    interface ShouldThrow {
+        (actual: Function): void;
+        (actual: Function, expected: string|RegExp, message?: string): void;
+        (actual: Function, constructor: Error|Function, expected?: string|RegExp, message?: string): void;
+    }
+
+    interface Assertion extends LanguageChains, NumericComparison, TypeComparison {
+        not: Assertion;
+        deep: Deep;
+        any: KeyFilter;
+        all: KeyFilter;
+        a: TypeComparison;
+        an: TypeComparison;
+        include: Include;
+        includes: Include;
+        contain: Include;
+        contains: Include;
+        ok: Assertion;
+        true: Assertion;
+        false: Assertion;
+        null: Assertion;
+        undefined: Assertion;
+        NaN: Assertion;
+        exist: Assertion;
+        empty: Assertion;
+        arguments: Assertion;
+        Arguments: Assertion;
+        equal: Equal;
+        equals: Equal;
+        eq: Equal;
+        eql: Equal;
+        eqls: Equal;
+        property: Property;
+        ownProperty: OwnProperty;
+        haveOwnProperty: OwnProperty;
+        ownPropertyDescriptor: OwnPropertyDescriptor;
+        haveOwnPropertyDescriptor: OwnPropertyDescriptor;
+        length: Length;
+        lengthOf: Length;
+        match: Match;
+        matches: Match;
+        string(string: string, message?: string): Assertion;
+        keys: Keys;
+        key(string: string): Assertion;
+        throw: Throw;
+        throws: Throw;
+        Throw: Throw;
+        respondTo: RespondTo;
+        respondsTo: RespondTo;
+        itself: Assertion;
+        satisfy: Satisfy;
+        satisfies: Satisfy;
+        closeTo: CloseTo;
+        approximately: CloseTo;
+        members: Members;
+        increase: PropertyChange;
+        increases: PropertyChange;
+        decrease: PropertyChange;
+        decreases: PropertyChange;
+        change: PropertyChange;
+        changes: PropertyChange;
+        extensible: Assertion;
+        sealed: Assertion;
+        frozen: Assertion;
+        oneOf(list: any[], message?: string): Assertion;
+    }
+
+    interface LanguageChains {
+        to: Assertion;
+        be: Assertion;
+        been: Assertion;
+        is: Assertion;
+        that: Assertion;
+        which: Assertion;
+        and: Assertion;
+        has: Assertion;
+        have: Assertion;
+        with: Assertion;
+        at: Assertion;
+        of: Assertion;
+        same: Assertion;
+    }
+
+    interface NumericComparison {
+        above: NumberComparer;
+        gt: NumberComparer;
+        greaterThan: NumberComparer;
+        least: NumberComparer;
+        gte: NumberComparer;
+        below: NumberComparer;
+        lt: NumberComparer;
+        lessThan: NumberComparer;
+        most: NumberComparer;
+        lte: NumberComparer;
+        within(start: number, finish: number, message?: string): Assertion;
+    }
+
+    interface NumberComparer {
+        (value: number, message?: string): Assertion;
+    }
+
+    interface TypeComparison {
+        (type: string, message?: string): Assertion;
+        instanceof: InstanceOf;
+        instanceOf: InstanceOf;
+    }
+
+    interface InstanceOf {
+        (constructor: Object, message?: string): Assertion;
+    }
+
+    interface CloseTo {
+        (expected: number, delta: number, message?: string): Assertion;
+    }
+
+    interface Deep {
+        equal: Equal;
+        include: Include;
+        property: Property;
+        members: Members;
+    }
+
+    interface KeyFilter {
+        keys: Keys;
+    }
+
+    interface Equal {
+        (value: any, message?: string): Assertion;
+    }
+
+    interface Property {
+        (name: string, value?: any, message?: string): Assertion;
+    }
+
+    interface OwnProperty {
+        (name: string, message?: string): Assertion;
+    }
+
+    interface OwnPropertyDescriptor {
+        (name: string, descriptor: PropertyDescriptor, message?: string): Assertion;
+        (name: string, message?: string): Assertion;
+    }
+
+    interface Length extends LanguageChains, NumericComparison {
+        (length: number, message?: string): Assertion;
+    }
+
+    interface Include {
+        (value: Object, message?: string): Assertion;
+        (value: string, message?: string): Assertion;
+        (value: number, message?: string): Assertion;
+        keys: Keys;
+        members: Members;
+        any: KeyFilter;
+        all: KeyFilter;
+    }
+
+    interface Match {
+        (regexp: RegExp|string, message?: string): Assertion;
+    }
+
+    interface Keys {
+        (...keys: string[]): Assertion;
+        (keys: any[]): Assertion;
+        (keys: Object): Assertion;
+    }
+
+    interface Throw {
+        (): Assertion;
+        (expected: string, message?: string): Assertion;
+        (expected: RegExp, message?: string): Assertion;
+        (constructor: Error, expected?: string, message?: string): Assertion;
+        (constructor: Error, expected?: RegExp, message?: string): Assertion;
+        (constructor: Function, expected?: string, message?: string): Assertion;
+        (constructor: Function, expected?: RegExp, message?: string): Assertion;
+    }
+
+    interface RespondTo {
+        (method: string, message?: string): Assertion;
+    }
+
+    interface Satisfy {
+        (matcher: Function, message?: string): Assertion;
+    }
+
+    interface Members {
+        (set: any[], message?: string): Assertion;
+    }
+
+    interface PropertyChange {
+        (object: Object, prop: string, msg?: string): Assertion;
+    }
+
+    export interface Assert {
+        /**
+         * @param expression Expression to test for truthiness.
+         * @param message Message to display on error.
+         */
+        (expression: any, message?: string): void;
+
+        fail(actual?: any, expected?: any, msg?: string, operator?: string): void;
+
+        ok(val: any, msg?: string): void;
+        isOk(val: any, msg?: string): void;
+        notOk(val: any, msg?: string): void;
+        isNotOk(val: any, msg?: string): void;
+
+        equal(act: any, exp: any, msg?: string): void;
+        notEqual(act: any, exp: any, msg?: string): void;
+
+        strictEqual(act: any, exp: any, msg?: string): void;
+        notStrictEqual(act: any, exp: any, msg?: string): void;
+
+        deepEqual(act: any, exp: any, msg?: string): void;
+        notDeepEqual(act: any, exp: any, msg?: string): void;
+
+        isTrue(val: any, msg?: string): void;
+        isFalse(val: any, msg?: string): void;
+
+        isNotTrue(val: any, msg?: string): void;
+        isNotFalse(val: any, msg?: string): void;
+
+        isNull(val: any, msg?: string): void;
+        isNotNull(val: any, msg?: string): void;
+
+        isUndefined(val: any, msg?: string): void;
+        isDefined(val: any, msg?: string): void;
+
+        isNaN(val: any, msg?: string): void;
+        isNotNaN(val: any, msg?: string): void;
+
+        isAbove(val: number, abv: number, msg?: string): void;
+        isBelow(val: number, blw: number, msg?: string): void;
+
+        isAtLeast(val: number, atlst: number, msg?: string): void;
+        isAtMost(val: number, atmst: number, msg?: string): void;
+
+        isFunction(val: any, msg?: string): void;
+        isNotFunction(val: any, msg?: string): void;
+
+        isObject(val: any, msg?: string): void;
+        isNotObject(val: any, msg?: string): void;
+
+        isArray(val: any, msg?: string): void;
+        isNotArray(val: any, msg?: string): void;
+
+        isString(val: any, msg?: string): void;
+        isNotString(val: any, msg?: string): void;
+
+        isNumber(val: any, msg?: string): void;
+        isNotNumber(val: any, msg?: string): void;
+
+        isBoolean(val: any, msg?: string): void;
+        isNotBoolean(val: any, msg?: string): void;
+
+        typeOf(val: any, type: string, msg?: string): void;
+        notTypeOf(val: any, type: string, msg?: string): void;
+
+        instanceOf(val: any, type: Function, msg?: string): void;
+        notInstanceOf(val: any, type: Function, msg?: string): void;
+
+        include(exp: string, inc: any, msg?: string): void;
+        include(exp: any[], inc: any, msg?: string): void;
+
+        notInclude(exp: string, inc: any, msg?: string): void;
+        notInclude(exp: any[], inc: any, msg?: string): void;
+
+        match(exp: any, re: RegExp, msg?: string): void;
+        notMatch(exp: any, re: RegExp, msg?: string): void;
+
+        property(obj: Object, prop: string, msg?: string): void;
+        notProperty(obj: Object, prop: string, msg?: string): void;
+        deepProperty(obj: Object, prop: string, msg?: string): void;
+        notDeepProperty(obj: Object, prop: string, msg?: string): void;
+
+        propertyVal(obj: Object, prop: string, val: any, msg?: string): void;
+        propertyNotVal(obj: Object, prop: string, val: any, msg?: string): void;
+
+        deepPropertyVal(obj: Object, prop: string, val: any, msg?: string): void;
+        deepPropertyNotVal(obj: Object, prop: string, val: any, msg?: string): void;
+
+        lengthOf(exp: any, len: number, msg?: string): void;
+        //alias frenzy
+        throw(fn: Function, msg?: string): void;
+        throw(fn: Function, regExp: RegExp): void;
+        throw(fn: Function, errType: Function, msg?: string): void;
+        throw(fn: Function, errType: Function, regExp: RegExp): void;
+
+        throws(fn: Function, msg?: string): void;
+        throws(fn: Function, regExp: RegExp): void;
+        throws(fn: Function, errType: Function, msg?: string): void;
+        throws(fn: Function, errType: Function, regExp: RegExp): void;
+
+        Throw(fn: Function, msg?: string): void;
+        Throw(fn: Function, regExp: RegExp): void;
+        Throw(fn: Function, errType: Function, msg?: string): void;
+        Throw(fn: Function, errType: Function, regExp: RegExp): void;
+
+        doesNotThrow(fn: Function, msg?: string): void;
+        doesNotThrow(fn: Function, regExp: RegExp): void;
+        doesNotThrow(fn: Function, errType: Function, msg?: string): void;
+        doesNotThrow(fn: Function, errType: Function, regExp: RegExp): void;
+
+        operator(val: any, operator: string, val2: any, msg?: string): void;
+        closeTo(act: number, exp: number, delta: number, msg?: string): void;
+        approximately(act: number, exp: number, delta: number, msg?: string): void;
+
+        sameMembers(set1: any[], set2: any[], msg?: string): void;
+        sameDeepMembers(set1: any[], set2: any[], msg?: string): void;
+        includeMembers(superset: any[], subset: any[], msg?: string): void;
+
+        ifError(val: any, msg?: string): void;
+
+        isExtensible(obj: {}, msg?: string): void;
+        extensible(obj: {}, msg?: string): void;
+        isNotExtensible(obj: {}, msg?: string): void;
+        notExtensible(obj: {}, msg?: string): void;
+
+        isSealed(obj: {}, msg?: string): void;
+        sealed(obj: {}, msg?: string): void;
+        isNotSealed(obj: {}, msg?: string): void;
+        notSealed(obj: {}, msg?: string): void;
+
+        isFrozen(obj: Object, msg?: string): void;
+        frozen(obj: Object, msg?: string): void;
+        isNotFrozen(obj: Object, msg?: string): void;
+        notFrozen(obj: Object, msg?: string): void;
+
+        oneOf(inList: any, list: any[], msg?: string): void;
+    }
+
+    export interface Config {
+        includeStack: boolean;
+    }
+
+    export class AssertionError {
+        constructor(message: string, _props?: any, ssf?: Function);
+        name: string;
+        message: string;
+        showDiff: boolean;
+        stack: string;
+    }
+}
+
+declare var chai: Chai.ChaiStatic;
+
+declare module "chai" {
+    export = chai;
+}
+
+interface Object {
+    should: Chai.Assertion;
+}

typings/browser/ambient/mocha/index.d.ts

@@ -0,0 +1,238 @@
+// Generated by typings
+// Source: https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/master/mocha/mocha.d.ts
+// Type definitions for mocha 2.2.5
+// Project: http://mochajs.org/
+// Definitions by: Kazi Manzur Rashid <https://github.com/kazimanzurrashid/>, otiai10 <https://github.com/otiai10>, jt000 <https://github.com/jt000>, Vadim Macagon <https://github.com/enlight>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface MochaSetupOptions {
+    //milliseconds to wait before considering a test slow
+    slow?: number;
+
+    // timeout in milliseconds
+    timeout?: number;
+
+    // ui name "bdd", "tdd", "exports" etc
+    ui?: string;
+
+    //array of accepted globals
+    globals?: any[];
+
+    // reporter instance (function or string), defaults to `mocha.reporters.Spec`
+    reporter?: any;
+
+    // bail on the first test failure
+    bail?: boolean;
+
+    // ignore global leaks
+    ignoreLeaks?: boolean;
+
+    // grep string or regexp to filter tests with
+    grep?: any;
+}
+
+interface MochaDone {
+    (error?: Error): void;
+}
+
+declare var mocha: Mocha;
+declare var describe: Mocha.IContextDefinition;
+declare var xdescribe: Mocha.IContextDefinition;
+// alias for `describe`
+declare var context: Mocha.IContextDefinition;
+// alias for `describe`
+declare var suite: Mocha.IContextDefinition;
+declare var it: Mocha.ITestDefinition;
+declare var xit: Mocha.ITestDefinition;
+// alias for `it`
+declare var test: Mocha.ITestDefinition;
+
+declare function before(action: () => void): void;
+
+declare function before(action: (done: MochaDone) => void): void;
+
+declare function before(description: string, action: () => void): void;
+
+declare function before(description: string, action: (done: MochaDone) => void): void;
+
+declare function setup(action: () => void): void;
+
+declare function setup(action: (done: MochaDone) => void): void;
+
+declare function after(action: () => void): void;
+
+declare function after(action: (done: MochaDone) => void): void;
+
+declare function after(description: string, action: () => void): void;
+
+declare function after(description: string, action: (done: MochaDone) => void): void;
+
+declare function teardown(action: () => void): void;
+
+declare function teardown(action: (done: MochaDone) => void): void;
+
+declare function beforeEach(action: () => void): void;
+
+declare function beforeEach(action: (done: MochaDone) => void): void;
+
+declare function beforeEach(description: string, action: () => void): void;
+
+declare function beforeEach(description: string, action: (done: MochaDone) => void): void;
+
+declare function suiteSetup(action: () => void): void;
+
+declare function suiteSetup(action: (done: MochaDone) => void): void;
+
+declare function afterEach(action: () => void): void;
+
+declare function afterEach(action: (done: MochaDone) => void): void;
+
+declare function afterEach(description: string, action: () => void): void;
+
+declare function afterEach(description: string, action: (done: MochaDone) => void): void;
+
+declare function suiteTeardown(action: () => void): void;
+
+declare function suiteTeardown(action: (done: MochaDone) => void): void;
+
+declare class Mocha {
+    constructor(options?: {
+        grep?: RegExp;
+        ui?: string;
+        reporter?: string;
+        timeout?: number;
+        bail?: boolean;
+    });
+
+    /** Setup mocha with the given options. */
+    setup(options: MochaSetupOptions): Mocha;
+    bail(value?: boolean): Mocha;
+    addFile(file: string): Mocha;
+    /** Sets reporter by name, defaults to "spec". */
+    reporter(name: string): Mocha;
+    /** Sets reporter constructor, defaults to mocha.reporters.Spec. */
+    reporter(reporter: (runner: Mocha.IRunner, options: any) => any): Mocha;
+    ui(value: string): Mocha;
+    grep(value: string): Mocha;
+    grep(value: RegExp): Mocha;
+    invert(): Mocha;
+    ignoreLeaks(value: boolean): Mocha;
+    checkLeaks(): Mocha;
+    /**
+     * Function to allow assertion libraries to throw errors directly into mocha.
+     * This is useful when running tests in a browser because window.onerror will
+     * only receive the 'message' attribute of the Error.
+     */
+    throwError(error: Error): void;
+    /** Enables growl support. */
+    growl(): Mocha;
+    globals(value: string): Mocha;
+    globals(values: string[]): Mocha;
+    useColors(value: boolean): Mocha;
+    useInlineDiffs(value: boolean): Mocha;
+    timeout(value: number): Mocha;
+    slow(value: number): Mocha;
+    enableTimeouts(value: boolean): Mocha;
+    asyncOnly(value: boolean): Mocha;
+    noHighlighting(value: boolean): Mocha;
+    /** Runs tests and invokes `onComplete()` when finished. */
+    run(onComplete?: (failures: number) => void): Mocha.IRunner;
+}
+
+// merge the Mocha class declaration with a module
+declare namespace Mocha {
+    /** Partial interface for Mocha's `Runnable` class. */
+    interface IRunnable {
+        title: string;
+        fn: Function;
+        async: boolean;
+        sync: boolean;
+        timedOut: boolean;
+    }
+
+    /** Partial interface for Mocha's `Suite` class. */
+    interface ISuite {
+        parent: ISuite;
+        title: string;
+
+        fullTitle(): string;
+    }
+
+    /** Partial interface for Mocha's `Test` class. */
+    interface ITest extends IRunnable {
+        parent: ISuite;
+        pending: boolean;
+
+        fullTitle(): string;
+    }
+
+    /** Partial interface for Mocha's `Runner` class. */
+    interface IRunner {}
+
+    interface IContextDefinition {
+        (description: string, spec: () => void): ISuite;
+        only(description: string, spec: () => void): ISuite;
+        skip(description: string, spec: () => void): void;
+        timeout(ms: number): void;
+    }
+
+    interface ITestDefinition {
+        (expectation: string, assertion?: () => void): ITest;
+        (expectation: string, assertion?: (done: MochaDone) => void): ITest;
+        only(expectation: string, assertion?: () => void): ITest;
+        only(expectation: string, assertion?: (done: MochaDone) => void): ITest;
+        skip(expectation: string, assertion?: () => void): void;
+        skip(expectation: string, assertion?: (done: MochaDone) => void): void;
+        timeout(ms: number): void;
+    }
+
+    export module reporters {
+        export class Base {
+            stats: {
+                suites: number;
+                tests: number;
+                passes: number;
+                pending: number;
+                failures: number;
+            };
+
+            constructor(runner: IRunner);
+        }
+
+        export class Doc extends Base {}
+        export class Dot extends Base {}
+        export class HTML extends Base {}
+        export class HTMLCov extends Base {}
+        export class JSON extends Base {}
+        export class JSONCov extends Base {}
+        export class JSONStream extends Base {}
+        export class Landing extends Base {}
+        export class List extends Base {}
+        export class Markdown extends Base {}
+        export class Min extends Base {}
+        export class Nyan extends Base {}
+        export class Progress extends Base {
+            /**
+             * @param options.open String used to indicate the start of the progress bar.
+             * @param options.complete String used to indicate a complete test on the progress bar.
+             * @param options.incomplete String used to indicate an incomplete test on the progress bar.
+             * @param options.close String used to indicate the end of the progress bar.
+             */
+            constructor(runner: IRunner, options?: {
+                open?: string;
+                complete?: string;
+                incomplete?: string;
+                close?: string;
+            });
+        }
+        export class Spec extends Base {}
+        export class TAP extends Base {}
+        export class XUnit extends Base {
+            constructor(runner: IRunner, options?: any);
+        }
+    }
+}
+
+declare module "mocha" {
+    export = Mocha;
+}

typings/main.d.ts

@@ -1,5 +1,7 @@
+/// <reference path="main/ambient/chai/index.d.ts" />
 /// <reference path="main/ambient/escodegen/index.d.ts" />
 /// <reference path="main/ambient/esprima/index.d.ts" />
 /// <reference path="main/ambient/estraverse/index.d.ts" />
 /// <reference path="main/ambient/estree/index.d.ts" />
+/// <reference path="main/ambient/mocha/index.d.ts" />
 /// <reference path="main/ambient/node/index.d.ts" />

typings/main/ambient/chai/index.d.ts

@@ -0,0 +1,403 @@
+// Generated by typings
+// Source: https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/master/chai/chai.d.ts
+// Type definitions for chai 3.4.0
+// Project: http://chaijs.com/
+// Definitions by: Jed Mao <https://github.com/jedmao/>,
+//                 Bart van der Schoor <https://github.com/Bartvds>,
+//                 Andrew Brown <https://github.com/AGBrown>,
+//                 Olivier Chevet <https://github.com/olivr70>,
+//                 Matt Wistrand <https://github.com/mwistrand>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+// <reference path="../assertion-error/assertion-error.d.ts"/>
+
+declare namespace Chai {
+
+    interface ChaiStatic {
+        expect: ExpectStatic;
+        should(): Should;
+        /**
+         * Provides a way to extend the internals of Chai
+         */
+        use(fn: (chai: any, utils: any) => void): ChaiStatic;
+        assert: AssertStatic;
+        config: Config;
+        AssertionError: typeof AssertionError;
+    }
+
+    export interface ExpectStatic extends AssertionStatic {
+        fail(actual?: any, expected?: any, message?: string, operator?: string): void;
+    }
+
+    export interface AssertStatic extends Assert {
+    }
+
+    export interface AssertionStatic {
+        (target: any, message?: string): Assertion;
+    }
+
+    interface ShouldAssertion {
+        equal(value1: any, value2: any, message?: string): void;
+        Throw: ShouldThrow;
+        throw: ShouldThrow;
+        exist(value: any, message?: string): void;
+    }
+
+    interface Should extends ShouldAssertion {
+        not: ShouldAssertion;
+        fail(actual: any, expected: any, message?: string, operator?: string): void;
+    }
+
+    interface ShouldThrow {
+        (actual: Function): void;
+        (actual: Function, expected: string|RegExp, message?: string): void;
+        (actual: Function, constructor: Error|Function, expected?: string|RegExp, message?: string): void;
+    }
+
+    interface Assertion extends LanguageChains, NumericComparison, TypeComparison {
+        not: Assertion;
+        deep: Deep;
+        any: KeyFilter;
+        all: KeyFilter;
+        a: TypeComparison;
+        an: TypeComparison;
+        include: Include;
+        includes: Include;
+        contain: Include;
+        contains: Include;
+        ok: Assertion;
+        true: Assertion;
+        false: Assertion;
+        null: Assertion;
+        undefined: Assertion;
+        NaN: Assertion;
+        exist: Assertion;
+        empty: Assertion;
+        arguments: Assertion;
+        Arguments: Assertion;
+        equal: Equal;
+        equals: Equal;
+        eq: Equal;
+        eql: Equal;
+        eqls: Equal;
+        property: Property;
+        ownProperty: OwnProperty;
+        haveOwnProperty: OwnProperty;
+        ownPropertyDescriptor: OwnPropertyDescriptor;
+        haveOwnPropertyDescriptor: OwnPropertyDescriptor;
+        length: Length;
+        lengthOf: Length;
+        match: Match;
+        matches: Match;
+        string(string: string, message?: string): Assertion;
+        keys: Keys;
+        key(string: string): Assertion;
+        throw: Throw;
+        throws: Throw;
+        Throw: Throw;
+        respondTo: RespondTo;
+        respondsTo: RespondTo;
+        itself: Assertion;
+        satisfy: Satisfy;
+        satisfies: Satisfy;
+        closeTo: CloseTo;
+        approximately: CloseTo;
+        members: Members;
+        increase: PropertyChange;
+        increases: PropertyChange;
+        decrease: PropertyChange;
+        decreases: PropertyChange;
+        change: PropertyChange;
+        changes: PropertyChange;
+        extensible: Assertion;
+        sealed: Assertion;
+        frozen: Assertion;
+        oneOf(list: any[], message?: string): Assertion;
+    }
+
+    interface LanguageChains {
+        to: Assertion;
+        be: Assertion;
+        been: Assertion;
+        is: Assertion;
+        that: Assertion;
+        which: Assertion;
+        and: Assertion;
+        has: Assertion;
+        have: Assertion;
+        with: Assertion;
+        at: Assertion;
+        of: Assertion;
+        same: Assertion;
+    }
+
+    interface NumericComparison {
+        above: NumberComparer;
+        gt: NumberComparer;
+        greaterThan: NumberComparer;
+        least: NumberComparer;
+        gte: NumberComparer;
+        below: NumberComparer;
+        lt: NumberComparer;
+        lessThan: NumberComparer;
+        most: NumberComparer;
+        lte: NumberComparer;
+        within(start: number, finish: number, message?: string): Assertion;
+    }
+
+    interface NumberComparer {
+        (value: number, message?: string): Assertion;
+    }
+
+    interface TypeComparison {
+        (type: string, message?: string): Assertion;
+        instanceof: InstanceOf;
+        instanceOf: InstanceOf;
+    }
+
+    interface InstanceOf {
+        (constructor: Object, message?: string): Assertion;
+    }
+
+    interface CloseTo {
+        (expected: number, delta: number, message?: string): Assertion;
+    }
+
+    interface Deep {
+        equal: Equal;
+        include: Include;
+        property: Property;
+        members: Members;
+    }
+
+    interface KeyFilter {
+        keys: Keys;
+    }
+
+    interface Equal {
+        (value: any, message?: string): Assertion;
+    }
+
+    interface Property {
+        (name: string, value?: any, message?: string): Assertion;
+    }
+
+    interface OwnProperty {
+        (name: string, message?: string): Assertion;
+    }
+
+    interface OwnPropertyDescriptor {
+        (name: string, descriptor: PropertyDescriptor, message?: string): Assertion;
+        (name: string, message?: string): Assertion;
+    }
+
+    interface Length extends LanguageChains, NumericComparison {
+        (length: number, message?: string): Assertion;
+    }
+
+    interface Include {
+        (value: Object, message?: string): Assertion;
+        (value: string, message?: string): Assertion;
+        (value: number, message?: string): Assertion;
+        keys: Keys;
+        members: Members;
+        any: KeyFilter;
+        all: KeyFilter;
+    }
+
+    interface Match {
+        (regexp: RegExp|string, message?: string): Assertion;
+    }
+
+    interface Keys {
+        (...keys: string[]): Assertion;
+        (keys: any[]): Assertion;
+        (keys: Object): Assertion;
+    }
+
+    interface Throw {
+        (): Assertion;
+        (expected: string, message?: string): Assertion;
+        (expected: RegExp, message?: string): Assertion;
+        (constructor: Error, expected?: string, message?: string): Assertion;
+        (constructor: Error, expected?: RegExp, message?: string): Assertion;
+        (constructor: Function, expected?: string, message?: string): Assertion;
+        (constructor: Function, expected?: RegExp, message?: string): Assertion;
+    }
+
+    interface RespondTo {
+        (method: string, message?: string): Assertion;
+    }
+
+    interface Satisfy {
+        (matcher: Function, message?: string): Assertion;
+    }
+
+    interface Members {
+        (set: any[], message?: string): Assertion;
+    }
+
+    interface PropertyChange {
+        (object: Object, prop: string, msg?: string): Assertion;
+    }
+
+    export interface Assert {
+        /**
+         * @param expression Expression to test for truthiness.
+         * @param message Message to display on error.
+         */
+        (expression: any, message?: string): void;
+
+        fail(actual?: any, expected?: any, msg?: string, operator?: string): void;
+
+        ok(val: any, msg?: string): void;
+        isOk(val: any, msg?: string): void;
+        notOk(val: any, msg?: string): void;
+        isNotOk(val: any, msg?: string): void;
+
+        equal(act: any, exp: any, msg?: string): void;
+        notEqual(act: any, exp: any, msg?: string): void;
+
+        strictEqual(act: any, exp: any, msg?: string): void;
+        notStrictEqual(act: any, exp: any, msg?: string): void;
+
+        deepEqual(act: any, exp: any, msg?: string): void;
+        notDeepEqual(act: any, exp: any, msg?: string): void;
+
+        isTrue(val: any, msg?: string): void;
+        isFalse(val: any, msg?: string): void;
+
+        isNotTrue(val: any, msg?: string): void;
+        isNotFalse(val: any, msg?: string): void;
+
+        isNull(val: any, msg?: string): void;
+        isNotNull(val: any, msg?: string): void;
+
+        isUndefined(val: any, msg?: string): void;
+        isDefined(val: any, msg?: string): void;
+
+        isNaN(val: any, msg?: string): void;
+        isNotNaN(val: any, msg?: string): void;
+
+        isAbove(val: number, abv: number, msg?: string): void;
+        isBelow(val: number, blw: number, msg?: string): void;
+
+        isAtLeast(val: number, atlst: number, msg?: string): void;
+        isAtMost(val: number, atmst: number, msg?: string): void;
+
+        isFunction(val: any, msg?: string): void;
+        isNotFunction(val: any, msg?: string): void;
+
+        isObject(val: any, msg?: string): void;
+        isNotObject(val: any, msg?: string): void;
+
+        isArray(val: any, msg?: string): void;
+        isNotArray(val: any, msg?: string): void;
+
+        isString(val: any, msg?: string): void;
+        isNotString(val: any, msg?: string): void;
+
+        isNumber(val: any, msg?: string): void;
+        isNotNumber(val: any, msg?: string): void;
+
+        isBoolean(val: any, msg?: string): void;
+        isNotBoolean(val: any, msg?: string): void;
+
+        typeOf(val: any, type: string, msg?: string): void;
+        notTypeOf(val: any, type: string, msg?: string): void;
+
+        instanceOf(val: any, type: Function, msg?: string): void;
+        notInstanceOf(val: any, type: Function, msg?: string): void;
+
+        include(exp: string, inc: any, msg?: string): void;
+        include(exp: any[], inc: any, msg?: string): void;
+
+        notInclude(exp: string, inc: any, msg?: string): void;
+        notInclude(exp: any[], inc: any, msg?: string): void;
+
+        match(exp: any, re: RegExp, msg?: string): void;
+        notMatch(exp: any, re: RegExp, msg?: string): void;
+
+        property(obj: Object, prop: string, msg?: string): void;
+        notProperty(obj: Object, prop: string, msg?: string): void;
+        deepProperty(obj: Object, prop: string, msg?: string): void;
+        notDeepProperty(obj: Object, prop: string, msg?: string): void;
+
+        propertyVal(obj: Object, prop: string, val: any, msg?: string): void;
+        propertyNotVal(obj: Object, prop: string, val: any, msg?: string): void;
+
+        deepPropertyVal(obj: Object, prop: string, val: any, msg?: string): void;
+        deepPropertyNotVal(obj: Object, prop: string, val: any, msg?: string): void;
+
+        lengthOf(exp: any, len: number, msg?: string): void;
+        //alias frenzy
+        throw(fn: Function, msg?: string): void;
+        throw(fn: Function, regExp: RegExp): void;
+        throw(fn: Function, errType: Function, msg?: string): void;
+        throw(fn: Function, errType: Function, regExp: RegExp): void;
+
+        throws(fn: Function, msg?: string): void;
+        throws(fn: Function, regExp: RegExp): void;
+        throws(fn: Function, errType: Function, msg?: string): void;
+        throws(fn: Function, errType: Function, regExp: RegExp): void;
+
+        Throw(fn: Function, msg?: string): void;
+        Throw(fn: Function, regExp: RegExp): void;
+        Throw(fn: Function, errType: Function, msg?: string): void;
+        Throw(fn: Function, errType: Function, regExp: RegExp): void;
+
+        doesNotThrow(fn: Function, msg?: string): void;
+        doesNotThrow(fn: Function, regExp: RegExp): void;
+        doesNotThrow(fn: Function, errType: Function, msg?: string): void;
+        doesNotThrow(fn: Function, errType: Function, regExp: RegExp): void;
+
+        operator(val: any, operator: string, val2: any, msg?: string): void;
+        closeTo(act: number, exp: number, delta: number, msg?: string): void;
+        approximately(act: number, exp: number, delta: number, msg?: string): void;
+
+        sameMembers(set1: any[], set2: any[], msg?: string): void;
+        sameDeepMembers(set1: any[], set2: any[], msg?: string): void;
+        includeMembers(superset: any[], subset: any[], msg?: string): void;
+
+        ifError(val: any, msg?: string): void;
+
+        isExtensible(obj: {}, msg?: string): void;
+        extensible(obj: {}, msg?: string): void;
+        isNotExtensible(obj: {}, msg?: string): void;
+        notExtensible(obj: {}, msg?: string): void;
+
+        isSealed(obj: {}, msg?: string): void;
+        sealed(obj: {}, msg?: string): void;
+        isNotSealed(obj: {}, msg?: string): void;
+        notSealed(obj: {}, msg?: string): void;
+
+        isFrozen(obj: Object, msg?: string): void;
+        frozen(obj: Object, msg?: string): void;
+        isNotFrozen(obj: Object, msg?: string): void;
+        notFrozen(obj: Object, msg?: string): void;
+
+        oneOf(inList: any, list: any[], msg?: string): void;
+    }
+
+    export interface Config {
+        includeStack: boolean;
+    }
+
+    export class AssertionError {
+        constructor(message: string, _props?: any, ssf?: Function);
+        name: string;
+        message: string;
+        showDiff: boolean;
+        stack: string;
+    }
+}
+
+declare var chai: Chai.ChaiStatic;
+
+declare module "chai" {
+    export = chai;
+}
+
+interface Object {
+    should: Chai.Assertion;
+}

typings/main/ambient/mocha/index.d.ts

@@ -0,0 +1,238 @@
+// Generated by typings
+// Source: https://raw.githubusercontent.com/DefinitelyTyped/DefinitelyTyped/master/mocha/mocha.d.ts
+// Type definitions for mocha 2.2.5
+// Project: http://mochajs.org/
+// Definitions by: Kazi Manzur Rashid <https://github.com/kazimanzurrashid/>, otiai10 <https://github.com/otiai10>, jt000 <https://github.com/jt000>, Vadim Macagon <https://github.com/enlight>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+interface MochaSetupOptions {
+    //milliseconds to wait before considering a test slow
+    slow?: number;
+
+    // timeout in milliseconds
+    timeout?: number;
+
+    // ui name "bdd", "tdd", "exports" etc
+    ui?: string;
+
+    //array of accepted globals
+    globals?: any[];
+
+    // reporter instance (function or string), defaults to `mocha.reporters.Spec`
+    reporter?: any;
+
+    // bail on the first test failure
+    bail?: boolean;
+
+    // ignore global leaks
+    ignoreLeaks?: boolean;
+
+    // grep string or regexp to filter tests with
+    grep?: any;
+}
+
+interface MochaDone {
+    (error?: Error): void;
+}
+
+declare var mocha: Mocha;
+declare var describe: Mocha.IContextDefinition;
+declare var xdescribe: Mocha.IContextDefinition;
+// alias for `describe`
+declare var context: Mocha.IContextDefinition;
+// alias for `describe`
+declare var suite: Mocha.IContextDefinition;
+declare var it: Mocha.ITestDefinition;
+declare var xit: Mocha.ITestDefinition;
+// alias for `it`
+declare var test: Mocha.ITestDefinition;
+
+declare function before(action: () => void): void;
+
+declare function before(action: (done: MochaDone) => void): void;
+
+declare function before(description: string, action: () => void): void;
+
+declare function before(description: string, action: (done: MochaDone) => void): void;
+
+declare function setup(action: () => void): void;
+
+declare function setup(action: (done: MochaDone) => void): void;
+
+declare function after(action: () => void): void;
+
+declare function after(action: (done: MochaDone) => void): void;
+
+declare function after(description: string, action: () => void): void;
+
+declare function after(description: string, action: (done: MochaDone) => void): void;
+
+declare function teardown(action: () => void): void;
+
+declare function teardown(action: (done: MochaDone) => void): void;
+
+declare function beforeEach(action: () => void): void;
+
+declare function beforeEach(action: (done: MochaDone) => void): void;
+
+declare function beforeEach(description: string, action: () => void): void;
+
+declare function beforeEach(description: string, action: (done: MochaDone) => void): void;
+
+declare function suiteSetup(action: () => void): void;
+
+declare function suiteSetup(action: (done: MochaDone) => void): void;
+
+declare function afterEach(action: () => void): void;
+
+declare function afterEach(action: (done: MochaDone) => void): void;
+
+declare function afterEach(description: string, action: () => void): void;
+
+declare function afterEach(description: string, action: (done: MochaDone) => void): void;
+
+declare function suiteTeardown(action: () => void): void;
+
+declare function suiteTeardown(action: (done: MochaDone) => void): void;
+
+declare class Mocha {
+    constructor(options?: {
+        grep?: RegExp;
+        ui?: string;
+        reporter?: string;
+        timeout?: number;
+        bail?: boolean;
+    });
+
+    /** Setup mocha with the given options. */
+    setup(options: MochaSetupOptions): Mocha;
+    bail(value?: boolean): Mocha;
+    addFile(file: string): Mocha;
+    /** Sets reporter by name, defaults to "spec". */
+    reporter(name: string): Mocha;
+    /** Sets reporter constructor, defaults to mocha.reporters.Spec. */
+    reporter(reporter: (runner: Mocha.IRunner, options: any) => any): Mocha;
+    ui(value: string): Mocha;
+    grep(value: string): Mocha;
+    grep(value: RegExp): Mocha;
+    invert(): Mocha;
+    ignoreLeaks(value: boolean): Mocha;
+    checkLeaks(): Mocha;
+    /**
+     * Function to allow assertion libraries to throw errors directly into mocha.
+     * This is useful when running tests in a browser because window.onerror will
+     * only receive the 'message' attribute of the Error.
+     */
+    throwError(error: Error): void;
+    /** Enables growl support. */
+    growl(): Mocha;
+    globals(value: string): Mocha;
+    globals(values: string[]): Mocha;
+    useColors(value: boolean): Mocha;
+    useInlineDiffs(value: boolean): Mocha;
+    timeout(value: number): Mocha;
+    slow(value: number): Mocha;
+    enableTimeouts(value: boolean): Mocha;
+    asyncOnly(value: boolean): Mocha;
+    noHighlighting(value: boolean): Mocha;
+    /** Runs tests and invokes `onComplete()` when finished. */
+    run(onComplete?: (failures: number) => void): Mocha.IRunner;
+}
+
+// merge the Mocha class declaration with a module
+declare namespace Mocha {
+    /** Partial interface for Mocha's `Runnable` class. */
+    interface IRunnable {
+        title: string;
+        fn: Function;
+        async: boolean;
+        sync: boolean;
+        timedOut: boolean;
+    }
+
+    /** Partial interface for Mocha's `Suite` class. */
+    interface ISuite {
+        parent: ISuite;
+        title: string;
+
+        fullTitle(): string;
+    }
+
+    /** Partial interface for Mocha's `Test` class. */
+    interface ITest extends IRunnable {
+        parent: ISuite;
+        pending: boolean;
+
+        fullTitle(): string;
+    }
+
+    /** Partial interface for Mocha's `Runner` class. */
+    interface IRunner {}
+
+    interface IContextDefinition {
+        (description: string, spec: () => void): ISuite;
+        only(description: string, spec: () => void): ISuite;
+        skip(description: string, spec: () => void): void;
+        timeout(ms: number): void;
+    }
+
+    interface ITestDefinition {
+        (expectation: string, assertion?: () => void): ITest;
+        (expectation: string, assertion?: (done: MochaDone) => void): ITest;
+        only(expectation: string, assertion?: () => void): ITest;
+        only(expectation: string, assertion?: (done: MochaDone) => void): ITest;
+        skip(expectation: string, assertion?: () => void): void;
+        skip(expectation: string, assertion?: (done: MochaDone) => void): void;
+        timeout(ms: number): void;
+    }
+
+    export module reporters {
+        export class Base {
+            stats: {
+                suites: number;
+                tests: number;
+                passes: number;
+                pending: number;
+                failures: number;
+            };
+
+            constructor(runner: IRunner);
+        }
+
+        export class Doc extends Base {}
+        export class Dot extends Base {}
+        export class HTML extends Base {}
+        export class HTMLCov extends Base {}
+        export class JSON extends Base {}
+        export class JSONCov extends Base {}
+        export class JSONStream extends Base {}
+        export class Landing extends Base {}
+        export class List extends Base {}
+        export class Markdown extends Base {}
+        export class Min extends Base {}
+        export class Nyan extends Base {}
+        export class Progress extends Base {
+            /**
+             * @param options.open String used to indicate the start of the progress bar.
+             * @param options.complete String used to indicate a complete test on the progress bar.
+             * @param options.incomplete String used to indicate an incomplete test on the progress bar.
+             * @param options.close String used to indicate the end of the progress bar.
+             */
+            constructor(runner: IRunner, options?: {
+                open?: string;
+                complete?: string;
+                incomplete?: string;
+                close?: string;
+            });
+        }
+        export class Spec extends Base {}
+        export class TAP extends Base {}
+        export class XUnit extends Base {
+            constructor(runner: IRunner, options?: any);
+        }
+    }
+}
+
+declare module "mocha" {
+    export = Mocha;
+}