Documentation

Assertion( subject, [optionalDetails] )

Constructor for Assert.

Parameters

• subject {*}: the object assertions are made for

• optionalDetails {String}: details that should be printed whenever no details are given for an assertion method

Assertion#isNotNull( [optionalDetails] )

Throws an error if the subject is null or undefined.

Parameters

• optionalDetails {String}: details to append to the error message

Returns

• {Assertion}: this instance

Assertion#hasType( type, [optionalDetails] )

Throws an error if the subject is not of the given type. No error is thrown for null or undefined.

Parameters

• type {Function}: the expected type of the subject

• optionalDetails {String}: details to append to the error message

Returns

• {Assertion}: this instance

Assertion#hasProperty( property, [optionalDetails] )

Throws an error if the subject is no object or the given property is not defined on it.

Parameters

• property {String}: the property that is expected for the subject

• optionalDetails {String}: details to append to the error message

Returns

• {Assertion}: this instance

assert( subject, [optionalDetails] )

Creates and returns a mew Assertion instance for the given subject.

Parameters

• subject {*}: the object assertions are made for

• optionalDetails {String}: details that should be printed whenever no details are given for an assertion method

Returns

• {Assertion}: the assertion instance

function Object() { [native code] }#codeIsUnreachable( [optionalDetails] )

Marks a code path as erroneous if reached by throwing an error.

Parameters

• optionalDetails {String}: details to append to the error message

function Object() { [native code] }#state( expression, [optionalDetails] )

Throws an error if the given expression is falsy.

Parameters

• expression {*}: the expression to test for truthyness

• optionalDetails {String}: details to append to the error message