@types/assert
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TypeScript definitions for assert
107 lines (96 loc) • 4.7 kB
TypeScript
/** An alias of `assert.ok()`. */
declare function assert(value: any, message?: string | Error): asserts value;
declare namespace assert {
class AssertionError extends Error {
actual: any;
expected: any;
operator: string;
generatedMessage: boolean;
code: "ERR_ASSERTION";
constructor(options?: {
/** If provided, the error message is set to this value. */
message?: string | undefined;
/** The `actual` property on the error instance. */
actual?: any;
/** The `expected` property on the error instance. */
expected?: any;
/** The `operator` property on the error instance. */
operator?: string | undefined;
/** If provided, the generated stack trace omits frames before this function. */
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
stackStartFn?: Function | undefined;
});
}
type AssertPredicate = RegExp | (new() => object) | ((thrown: any) => boolean) | object | Error;
function fail(message?: string | Error): never;
/** @deprecated since v10.0.0 - use fail([message]) or other assert functions instead. */
function fail(
actual: any,
expected: any,
message?: string | Error,
operator?: string,
// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
stackStartFn?: Function,
): never;
function ok(value: any, message?: string | Error): asserts value;
/** @deprecated since v9.9.0 - use strictEqual() instead. */
function equal(actual: any, expected: any, message?: string | Error): void;
/** @deprecated since v9.9.0 - use notStrictEqual() instead. */
function notEqual(actual: any, expected: any, message?: string | Error): void;
/** @deprecated since v9.9.0 - use deepStrictEqual() instead. */
function deepEqual(actual: any, expected: any, message?: string | Error): void;
/** @deprecated since v9.9.0 - use notDeepStrictEqual() instead. */
function notDeepEqual(actual: any, expected: any, message?: string | Error): void;
function strictEqual<T>(actual: any, expected: T, message?: string | Error): asserts actual is T;
function notStrictEqual(actual: any, expected: any, message?: string | Error): void;
function deepStrictEqual<T>(actual: any, expected: T, message?: string | Error): asserts actual is T;
function notDeepStrictEqual(actual: any, expected: any, message?: string | Error): void;
function throws(block: () => any, message?: string | Error): void;
function throws(block: () => any, error: AssertPredicate, message?: string | Error): void;
function doesNotThrow(block: () => any, message?: string | Error): void;
function doesNotThrow(block: () => any, error: AssertPredicate, message?: string | Error): void;
function ifError(value: any): asserts value is null | undefined;
function rejects(block: (() => Promise<any>) | Promise<any>, message?: string | Error): Promise<void>;
function rejects(
block: (() => Promise<any>) | Promise<any>,
error: AssertPredicate,
message?: string | Error,
): Promise<void>;
function doesNotReject(block: (() => Promise<any>) | Promise<any>, message?: string | Error): Promise<void>;
function doesNotReject(
block: (() => Promise<any>) | Promise<any>,
error: AssertPredicate,
message?: string | Error,
): Promise<void>;
function match(value: string, regExp: RegExp, message?: string | Error): void;
function doesNotMatch(value: string, regExp: RegExp, message?: string | Error): void;
const strict:
& Omit<
typeof assert,
| "equal"
| "notEqual"
| "deepEqual"
| "notDeepEqual"
| "ok"
| "strictEqual"
| "deepStrictEqual"
| "ifError"
| "strict"
>
& {
(value: any, message?: string | Error): asserts value;
equal: typeof strictEqual;
notEqual: typeof notStrictEqual;
deepEqual: typeof deepStrictEqual;
notDeepEqual: typeof notDeepStrictEqual;
// Mapped types and assertion functions are incompatible?
// TS2775: Assertions require every name in the call target
// to be declared with an explicit type annotation.
ok: typeof ok;
strictEqual: typeof strictEqual;
deepStrictEqual: typeof deepStrictEqual;
ifError: typeof ifError;
strict: typeof strict;
};
}
export = assert;