[tests] Added spec

spec/spec.js

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+'use strict';
+
+const infiniteList = require('../index');
+
+/* global describe it expect */
+describe("InfiniteList", () => {
+
+	it("Should be 0", () => {
+		const infinite = infiniteList.create(0, x => x + 2);
+		expect(infinite.first().value).toBe(0);
+	})
+
+	it("Should be 22", () => {
+		const infinite = infiniteList.create(0, x => x + 2);
+		expect(infinite.get(11).value).toBe(22);
+	})
+
+	it("Should be [ 0, 2, 4, 6, 8 ]", () => {
+		const infinite = infiniteList.create(0, x => x + 2);
+		expect(infinite.take(5).map(x => x.value)).toEqual([ 0, 2, 4, 6, 8 ]);
+	})
+
+	it("Should be [ 16, 18, 20 ]", () => {
+		const infinite = infiniteList.create(0, x => x + 2);
+		expect(infinite.take(8, 10).map(x => x.value)).toEqual([ 16, 18, 20 ]);
+	})
+
+	it("Should be [ 0, 2, 4, 6, 8 ]", () => {
+		const infinite = infiniteList.create(0, x => x + 2);
+		const acc = [];
+		for(let i of infinite) {
+			if(i.index >= 5) break;
+			acc.push(i.value)
+		}
+		expect(acc).toEqual([ 0, 2, 4, 6, 8 ]);
+	})
+
+})

spec/support/jasmine.json

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+{
+  "spec_dir": "spec",
+  "spec_files": [
+    "**/*[sS]pec.js"
+  ],
+  "helpers": [
+    "helpers/**/*.js"
+  ],
+  "stopSpecOnExpectationFailure": false,
+  "random": true
+}