Describe

interface Describe

function sum(a, b) {
  return a + b;
}
describe("sum()", () => {
  test("can sum two values", () => {
    expect(sum(1, 1)).toBe(2);
  });
});

• each<T extends readonly [any, any]>(table: readonly T[]): (label: string, fn: (...args: [...T[]]) => void | Promise<unknown>, options?: number | TestOptions) => void

  Returns a function that runs for each item in table.

  @param table

  Array of Arrays with the arguments that are passed into the test fn for each row.

  each<T extends any[]>(table: readonly T[]): (label: string, fn: (...args: Readonly<T>) => void | Promise<unknown>, options?: number | TestOptions) => void

  each<T>(table: T[]): (label: string, fn: (...args: T[]) => void | Promise<unknown>, options?: number | TestOptions) => void
• if(condition: boolean): (label: string, fn: () => void) => void

  Runs this group of tests, only if condition is true.

  This is the opposite of describe.skipIf().

  @param condition

  if these tests should run

• only(label: string, fn: () => void): void

  Skips all other tests, except this group of tests.

  @param label

  the label for the tests

  @param fn

  the function that defines the tests

• skip(label: string, fn: () => void): void

  Skips this group of tests.

  @param label

  the label for the tests

  @param fn

  the function that defines the tests

• skipIf(condition: boolean): (label: string, fn: () => void) => void

  Skips this group of tests, if condition is true.

  @param condition

  if these tests should be skipped

• todo(label: string, fn?: () => void): void

  Marks this group of tests as to be written or to be fixed.

  @param label

  the label for the tests

  @param fn

  the function that defines the tests

• todoIf(condition: boolean): (label: string, fn: () => void) => void

  Marks this group of tests as to be written or to be fixed, if condition is true.

  @param condition

  if these tests should be skipped