prettier/tests/flow/core_tests/__snapshots__/jsfmt.spec.js.snap

// Jest Snapshot v1, https://goo.gl/fbAQLP

exports[`boolean.js - flow-verify 1`] = `
// @flow

// Boolean (the class) tests. booleans (the literals) are not part of core.js

let tests = [
  // constructor
  function() {
    new Boolean();
    new Boolean(0);
    new Boolean(-0);
    new Boolean(null);
    new Boolean(false);
    new Boolean(NaN);
    new Boolean(undefined);
    new Boolean("");
  },

  // toString
  function() {
    (true).toString();
    let x: boolean = false;
    x.toString();
    (new Boolean(true)).toString();
  },

  // valueOf
  function() {
    ((new Boolean(0)).valueOf(): boolean);
  },

  // casting
  function() {
    Boolean();
    Boolean(0);
    Boolean(-0);
    Boolean(null);
    Boolean(false);
    Boolean(NaN);
    Boolean(undefined);
    Boolean("");
  },
];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// @flow

// Boolean (the class) tests. booleans (the literals) are not part of core.js

let tests = [
  // constructor
  function() {
    new Boolean();
    new Boolean(0);
    new Boolean(-0);
    new Boolean(null);
    new Boolean(false);
    new Boolean(NaN);
    new Boolean(undefined);
    new Boolean("");
  },

  // toString
  function() {
    true.toString();
    let x: boolean = false;
    x.toString();
    new Boolean(true).toString();
  },

  // valueOf
  function() {
    (new Boolean(0).valueOf(): boolean);
  },

  // casting
  function() {
    Boolean();
    Boolean(0);
    Boolean(-0);
    Boolean(null);
    Boolean(false);
    Boolean(NaN);
    Boolean(undefined);
    Boolean("");
  }
];

`;

exports[`map.js - flow-verify 1`] = `
// @flow

function* generator(): Iterable<[string, number]> {
  while (true) {
    yield ['foo', 123];
  }
}

let tests = [
  // good constructors
  function() {
    let w = new Map();
    let x = new Map(null);
    let y = new Map([['foo', 123]]);
    let z = new Map(generator());
    let a: Map<string, number> = new Map();
    let b: Map<string, number> = new Map([['foo', 123]]);
    let c: Map<string, number> = new Map(generator());
  },

  // bad constructors
  function() {
    let x = new Map(['foo', 123]); // error
    let y: Map<number, string> = new Map([['foo', 123]]); // error
  },

  // get()
  function(x: Map<string, number>) {
    (x.get('foo'): boolean); // error, string | void
    x.get(123); // error, wrong key type
  },
];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// @flow

function* generator(): Iterable<[string, number]> {
  while (true) {
    yield ["foo", 123];
  }
}

let tests = [
  // good constructors
  function() {
    let w = new Map();
    let x = new Map(null);
    let y = new Map([["foo", 123]]);
    let z = new Map(generator());
    let a: Map<string, number> = new Map();
    let b: Map<string, number> = new Map([["foo", 123]]);
    let c: Map<string, number> = new Map(generator());
  },

  // bad constructors
  function() {
    let x = new Map(["foo", 123]); // error
    let y: Map<number, string> = new Map([["foo", 123]]); // error
  },

  // get()
  function(x: Map<string, number>) {
    (x.get("foo"): boolean); // error, string | void
    x.get(123); // error, wrong key type
  }
];

`;

exports[`regexp.js - flow-verify 1`] = `
// @flow

let tests = [
  // constructor
  function() {
    new RegExp('foo');
    new RegExp(/foo/);
    new RegExp('foo', 'i');
    new RegExp('foo', 'ig');
    new RegExp(/foo/, 'i'); // invalid in ES5, valid in ES6
    new RegExp(/foo/g, 'i'); // invalid in ES5, valid in ES6
  },

  // called as a function (equivalent to the constructor per ES6 21.2.3)
  function() {
    RegExp('foo');
    RegExp(/foo/);
    RegExp('foo', 'i');
    RegExp('foo', 'ig');
    RegExp(/foo/, 'i'); // invalid in ES5, valid in ES6
    RegExp(/foo/g, 'i'); // invalid in ES5, valid in ES6
  },

  // invalid flags
  function() {
    RegExp('foo', 'z'); // error
    new RegExp('foo', 'z'); // error
  }
];
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// @flow

let tests = [
  // constructor
  function() {
    new RegExp("foo");
    new RegExp(/foo/);
    new RegExp("foo", "i");
    new RegExp("foo", "ig");
    new RegExp(/foo/, "i"); // invalid in ES5, valid in ES6
    new RegExp(/foo/g, "i"); // invalid in ES5, valid in ES6
  },

  // called as a function (equivalent to the constructor per ES6 21.2.3)
  function() {
    RegExp("foo");
    RegExp(/foo/);
    RegExp("foo", "i");
    RegExp("foo", "ig");
    RegExp(/foo/, "i"); // invalid in ES5, valid in ES6
    RegExp(/foo/g, "i"); // invalid in ES5, valid in ES6
  },

  // invalid flags
  function() {
    RegExp("foo", "z"); // error
    new RegExp("foo", "z"); // error
  }
];

`;

exports[`weakset.js - flow-verify 1`] = `
// @flow

let ws = new WeakSet();
let obj: Object = {};
let dict: {foo: string} = {foo: 'bar'};

ws.add(window);
ws.add(obj);
ws.add(dict);
ws.has(window);
ws.has(obj);
ws.has(dict);
ws.delete(window);
ws.delete(obj);
ws.delete(dict);

let ws2 = new WeakSet([obj, dict]);

let ws3 = new WeakSet([1, 2, 3]); // error, must be objects

function* generator(): Iterable<{foo: string}> {
  while (true) {
    yield {foo: 'bar'};
  }
}

let ws4 = new WeakSet(generator());

function* numbers(): Iterable<number> {
  let i = 0;
  while (true) {
    yield i++;
  }
}

let ws5 = new WeakSet(numbers()); // error, must be objects
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// @flow

let ws = new WeakSet();
let obj: Object = {};
let dict: { foo: string } = { foo: "bar" };

ws.add(window);
ws.add(obj);
ws.add(dict);
ws.has(window);
ws.has(obj);
ws.has(dict);
ws.delete(window);
ws.delete(obj);
ws.delete(dict);

let ws2 = new WeakSet([obj, dict]);

let ws3 = new WeakSet([1, 2, 3]); // error, must be objects

function* generator(): Iterable<{ foo: string }> {
  while (true) {
    yield { foo: "bar" };
  }
}

let ws4 = new WeakSet(generator());

function* numbers(): Iterable<number> {
  let i = 0;
  while (true) {
    yield i++;
  }
}

let ws5 = new WeakSet(numbers()); // error, must be objects

`;