Add tests for Promise.all|race resolve lookup

Ref tc39/ecma262#1506

test/built-ins/Promise/all/invoke-resolve-get-once-multiple-calls.js

@@ -0,0 +1,45 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+  Gets constructor's `resolve` method once from zero to many invocations.
+esid: sec-promise.all
+info: |
+  Runtime Semantics: PerformPromiseAll
+
+  1. Let promiseResolve be ? Get(constructor, `"resolve"`).
+  1. If IsCallable(promiseResolve) is false, throw a TypeError exception.
+  ...
+  1. Repeat,
+    ...
+    1. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
+---*/
+
+var p1 = Promise.resolve(1);
+var p2 = Promise.resolve(1);
+var p3 = Promise.reject(1);
+var p4 = Promise.resolve(1);
+var resolve = Promise.resolve;
+var getCount = 0;
+var callCount = 0;
+
+Object.defineProperty(Promise, 'resolve', {
+  configurable: true,
+  get() {
+    getCount += 1;
+    return function() {
+      callCount += 1;
+      return resolve.apply(Promise, arguments);
+    };
+  }
+});
+
+Promise.all([p1, p2, p3, p4]);
+
+assert.sameValue(
+  getCount, 1, 'Got `resolve` only once for each iterated value'
+);
+assert.sameValue(
+  callCount, 4, '`resolve` invoked once for each iterated value'
+);

test/built-ins/Promise/all/invoke-resolve-get-once-no-calls.js

@@ -0,0 +1,42 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+  Gets constructor's `resolve` method once from zero to many invocations.
+esid: sec-promise.allsettled
+info: |
+  Runtime Semantics: PerformPromiseAll
+
+  1. Let promiseResolve be ? Get(constructor, `"resolve"`).
+  1. If IsCallable(promiseResolve) is false, throw a TypeError exception.
+  ...
+  1. Repeat,
+    ...
+    1. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
+features: [Promise.allSettled]
+---*/
+
+var resolve = Promise.resolve;
+var getCount = 0;
+var callCount = 0;
+
+Object.defineProperty(Promise, 'resolve', {
+  configurable: true,
+  get() {
+    getCount += 1;
+    return function() {
+      callCount += 1;
+      return resolve.apply(Promise, arguments);
+    };
+  }
+});
+
+Promise.all([]);
+
+assert.sameValue(
+  getCount, 1, 'Got `resolve` only once for each iterated value'
+);
+assert.sameValue(
+  callCount, 0, '`resolve` not called for empty iterator'
+);

test/built-ins/Promise/race/invoke-resolve-get-once-multiple-calls.js

@@ -0,0 +1,45 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+  Gets constructor's `resolve` method once from zero to many invocations.
+esid: sec-promise.race
+info: |
+  Runtime Semantics: PerformPromiseRace
+
+  1. Let promiseResolve be ? Get(constructor, `"resolve"`).
+  1. If IsCallable(promiseResolve) is false, throw a TypeError exception.
+  ...
+  1. Repeat,
+    ...
+    1. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
+---*/
+
+var p1 = Promise.resolve(1);
+var p2 = Promise.resolve(1);
+var p3 = Promise.reject(1);
+var p4 = Promise.resolve(1);
+var resolve = Promise.resolve;
+var getCount = 0;
+var callCount = 0;
+
+Object.defineProperty(Promise, 'resolve', {
+  configurable: true,
+  get() {
+    getCount += 1;
+    return function() {
+      callCount += 1;
+      return resolve.apply(Promise, arguments);
+    };
+  }
+});
+
+Promise.race([p1, p2, p3, p4]);
+
+assert.sameValue(
+  getCount, 1, 'Got `resolve` only once for each iterated value'
+);
+assert.sameValue(
+  callCount, 4, '`resolve` invoked once for each iterated value'
+);

test/built-ins/Promise/race/invoke-resolve-get-once-no-calls.js

@@ -0,0 +1,41 @@
+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+  Gets constructor's `resolve` method once from zero to many invocations.
+esid: sec-promise.race
+info: |
+  Runtime Semantics: PerformPromiseRace
+
+  1. Let promiseResolve be ? Get(constructor, `"resolve"`).
+  1. If IsCallable(promiseResolve) is false, throw a TypeError exception.
+  ...
+  1. Repeat,
+    ...
+    1. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
+---*/
+
+var resolve = Promise.resolve;
+var getCount = 0;
+var callCount = 0;
+
+Object.defineProperty(Promise, 'resolve', {
+  configurable: true,
+  get() {
+    getCount += 1;
+    return function() {
+      callCount += 1;
+      return resolve.apply(Promise, arguments);
+    };
+  }
+});
+
+Promise.race([]);
+
+assert.sameValue(
+  getCount, 1, 'Got `resolve` only once for each iterated value'
+);
+assert.sameValue(
+  callCount, 0, '`resolve` not called for empty iterator'
+);