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qwen/nodejs/node_modules/@sinonjs/commons/lib/every.test.js

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+"use strict";
+
+var assert = require("@sinonjs/referee-sinon").assert;
+var sinon = require("@sinonjs/referee-sinon").sinon;
+var every = require("./every");
+
+describe("util/core/every", function () {
+    it("returns true when the callback function returns true for every element in an iterable", function () {
+        var obj = [true, true, true, true];
+        var allTrue = every(obj, function (val) {
+            return val;
+        });
+
+        assert(allTrue);
+    });
+
+    it("returns false when the callback function returns false for any element in an iterable", function () {
+        var obj = [true, true, true, false];
+        var result = every(obj, function (val) {
+            return val;
+        });
+
+        assert.isFalse(result);
+    });
+
+    it("calls the given callback once for each item in an iterable until it returns false", function () {
+        var iterableOne = [true, true, true, true];
+        var iterableTwo = [true, true, false, true];
+        var callback = sinon.spy(function (val) {
+            return val;
+        });
+
+        every(iterableOne, callback);
+        assert.equals(callback.callCount, 4);
+
+        callback.resetHistory();
+
+        every(iterableTwo, callback);
+        assert.equals(callback.callCount, 3);
+    });
+});