[test] Updated spec

spec/spec.js

@@ -1,47 +1,172 @@
 'use strict';
 
-const InfiniteList = require('..');
-const { InfiniteListItem } = require('..');
+const InfiniteList = require('../es5/infinity.min');
+
+const {
+	InfiniteListItem
+} = require('..');
+
+String.prototype.trimify = function() {
+	return this.replace(/\s/g, '');
+};
+
+const testStrings = [
+	`InfiniteListItem[.. {
+		"i": 35,
+		"a": {
+			"$ref": "$"
+		}
+	} ..]`,
+	`InfiniteList[{
+		"i": 10,
+		"a": {
+			"$ref": "$"
+		}
+	}, {
+		"i": 15,
+		"a": {
+			"$ref": "$"
+		}
+	}, ...]`
+];
 
 /* global describe it expect */
 describe("InfiniteList", () => {
 
 	it("Should be true", () => {
-		const infinite = InfiniteList.create(0, x => x + 2);
-		expect(infinite.get(5) instanceof InfiniteListItem).toBe(true);
-	})
+		const Infinite = new InfiniteList(0, x => x + 2);
+		expect(Infinite instanceof InfiniteList).toBe(true);
+	});
 
-	it("Should be 0", () => {
-		const infinite = InfiniteList.create(0, x => x + 2);
-		expect(infinite.first().value).toBe(0);
-		expect(infinite.top().value).toBe(0);
-		expect(infinite.last().value).toBe(Infinity);
-		expect(infinite.end().value).toBe(Infinity);
-	})
+	it("Should be true", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+		expect(Infinite.get(5) instanceof InfiniteListItem).toBe(true);
+	});
 
 	it("Should be 22", () => {
-		const infinite = InfiniteList.create(0, x => x + 2);
-		expect(infinite.get(11).value).toBe(22);
-	})
+		const Infinite = new InfiniteList(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 0", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+		expect(Infinite.first().value).toBe(0);
+		expect(Infinite.top().value).toBe(0);
+		expect(Infinite.last().value).toBe(Infinity);
+		expect(Infinite.end().value).toBe(Infinity);
+	});
+
+	it("Should be 102", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+		const hundred = Infinite.get(50);
+		expect(hundred.next().value).toBe(102);
+	});
+
+	it("Should be [ 50, 52, 54, 56 ]", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+
+		const fourtyEight = Infinite.get(24);
+		const arr = [
+			fourtyEight.next(),
+			fourtyEight.next(2),
+			fourtyEight.next(3),
+			fourtyEight.next(4)
+		]
+
+		expect(arr.map(x => x.value)).toEqual([ 50, 52, 54, 56 ]);
+	});
+
+	it("Should be 98", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+		const hundred = Infinite.get(50);
+		expect(hundred.previous().value).toBe(98);
+	});
+
+	it("Should be [ 46, 44, 42, 40 ]", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+
+		const fourtyEight = Infinite.get(24);
+		const arr = [
+			fourtyEight.previous(),
+			fourtyEight.previous(2),
+			fourtyEight.previous(3),
+			fourtyEight.previous(4)
+		]
+
+		expect(arr.map(x => x.value)).toEqual([ 46, 44, 42, 40 ]);
+	});
 
-	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 equal []", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+
+		expect(Infinite.take()).toEqual([ ]);
+		expect(Infinite.take(0)).toEqual([ ]);
+	});
+
+	it("Should equal [ 0 ]", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+
+		expect(Infinite.take(0, 0).map(x => x.value)).toEqual([ 0 ]);
+	});
+
+	it("Should equal [ 0, 2, 4, 6, 8 ]", () => {
+		const Infinite = new InfiniteList(0, x => x + 2);
+		expect(Infinite.take(5).map(x => x.value)).toEqual([0, 2, 4, 6, 8]);
+	});
+
+	it("Should equal [ 16, 18, 20 ]", () => {
+		const Infinite = new InfiniteList(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 Infinite = new InfiniteList(0, x => x + 2);
+
 		const acc = [];
-		for(let i of infinite) {
-			if(i.index >= 5) break;
+		for (let i of Infinite) {
+			if (i.index >= 5) break;
 			acc.push(i.value)
 		}
-		expect(acc).toEqual([ 0, 2, 4, 6, 8 ]);
-	})
 
-})
+		expect(acc).toEqual([0, 2, 4, 6, 8]);
+	});
+
+	it("Stringified InfiniteList should equal test string [0]", () => {
+		const a = {
+			i: 10
+		}
+		a.a = a;
+		const next = x => {
+			const y = {
+				i: x.i + 5
+			};
+			y.a = y;
+			return y;
+		}
+
+		const str = new InfiniteList(a, next)
+			.get(5)
+			.toString();
+
+		expect(str.trimify()).toBe(testStrings[0].trimify());
+	});
+
+	it("Stringified InfiniteListItem should equal test string [1]", () => {
+		const a = {
+			i: 10
+		}
+		a.a = a;
+		const next = x => {
+			const y = {
+				i: x.i + 5
+			};
+			y.a = y;
+			return y;
+		}
+
+		const str = new InfiniteList(a, next).toString();
+
+		expect(str.trimify()).toBe(testStrings[1].trimify());
+	});
+
+});