Interface Assertion

test/support/expectjs.d.ts:4–156

declare namespace Expect {
  interface Assertion {
    /**
     * Check if the value is truthy
     */
    ok(): void;

    /**
     * Creates an anonymous function which calls fn with arguments.
     */
    withArgs(...args: any[]): Root;

    /**
     * Assert that the function throws.
     *
     * @param fn callback to match error string against
     */
    throwError(fn?: (exception: any) => void): void;

    /**
     * Assert that the function throws.
     *
     * @param fn callback to match error string against
     */
    throwException(fn?: (exception: any) => void): void;

    /**
     * Assert that the function throws.
     *
     * @param regexp regexp to match error string against
     */
    throwError(regexp: RegExp): void;

    /**
     * Assert that the function throws.
     *
     * @param fn callback to match error string against
     */
    throwException(regexp: RegExp): void;

    /**
     * Checks if the array is empty.
     */
    empty(): Assertion;

    /**
     * Checks if the obj exactly equals another.
     */
    equal(obj: any): Assertion;

    /**
     * Checks if the obj sortof equals another.
     */
    eql(obj: any): Assertion;

    /**
     * Assert within start to finish (inclusive).
     *
     * @param start