From d5a36a913ed722c90a9cf294359ecb27c6cd4c4f Mon Sep 17 00:00:00 2001
From: Arthur Lu <learthurgo@gmail.com>
Date: Sat, 5 Nov 2022 20:19:14 -0700
Subject: [PATCH] implement unittest.js, implement unittest.test.js

Signed-off-by: Arthur Lu <learthurgo@gmail.com>
---
 unittest/unittest.js      |  60 +++++++++++++++++++--
 unittest/unittest.test.js | 110 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 165 insertions(+), 5 deletions(-)
 create mode 100644 unittest/unittest.test.js

diff --git a/unittest/unittest.js b/unittest/unittest.js
index c72bea1..bf894fd 100644
--- a/unittest/unittest.js
+++ b/unittest/unittest.js
@@ -1,9 +1,59 @@
-function environment(name, tests) {}
+module.exports = {test, item, assert};
 
-function test(name, items) {}
+var itemsFailed;
 
-function item(name, method) {}
+/*
+ * Calls multiple item functions.
+ *
+ * param 	name 		string 	name of the test
+ * param 	items 		func	callable function that contains item calls
+ * 
+ * return				bool	whether the test passed or failed
+*/
+function test(name, items) {
+	console.log(name);    
+    items();
+}
 
-function assert(result, expected) {}
+/*
+ * Contain multiple assertions to test specific behavior
+ * 
+ * param 	name		string 	name of the specific item
+ * param	items		func	multple assertion calls
+ * 
+ * return 				bool	whether the item passed or failed
+*/
+function item(name, method) {
+	try{
+		method();
+		console.log('\t\x1b[32m%s\x1b[0m', '\u2714 ' + name);
+		itemsFailed += 0;
+		return true;
+	}
+	catch (error) {
+		console.log('\t\x1b[31m%s\x1b[0m', '\u2718 ' + name);
+        itemsFailed += 1;
+		return false;
+	}
+}
 
-module.exports = {environment, test, item, assert};
\ No newline at end of file
+/*
+ * Given two inputs, comapres if they equivalent.
+ *
+ * param 	input		any		output of some function to be tested.
+ * param	expected	any		expected output of the function
+ * 
+ * return				bool 	whether input = expected
+*/
+function assert(input, expected) {
+	let result;
+	if (typeof(input) === 'object') {
+		result = JSON.stringify(input) === JSON.stringify(expected);
+	}
+	else {
+		result = input === expected;
+	}
+	if(!result){
+		throw new Error();
+	}
+}
\ No newline at end of file
diff --git a/unittest/unittest.test.js b/unittest/unittest.test.js
new file mode 100644
index 0000000..16c0d4e
--- /dev/null
+++ b/unittest/unittest.test.js
@@ -0,0 +1,110 @@
+const unittest = require("./unittest.js");
+
+const localStorageMock = (function () {
+	let store = {};
+	return {
+		getItem(key) {
+			return store[key];
+		},
+		setItem(key, value) {
+			store[key] = value;
+		},
+		clear() {
+			store = {};
+		},
+		removeItem(key) {
+			delete store[key];
+		},
+		getAll() {
+			return store;
+		},
+	};
+})();
+let window = {};
+Object.defineProperty(window, "localStorage", { value: localStorageMock });
+
+function assertion_test () {
+	try { unittest.assert(1, 1); }
+	catch (error) { console.log("Failed assert(1,1)") }
+
+	try { unittest.assert(65536, 65536); }
+	catch (error) { console.log("Failed assert(655366,65536)") }
+
+	try { unittest.assert(-50, 50); console.log("Failed assert(-50,50)") }
+	catch (error) {  }
+
+	try { unittest.assert(0, 1); console.log("Failed assert(0,1)") }
+	catch (error) {  }
+
+	try { unittest.assert(true, true); }
+	catch (error) { console.log("Failed assert(true,true)") }
+
+	try { unittest.assert(false, false); }
+	catch (error) { console.log("Failed assert(false,false)") }
+
+	try { unittest.assert(true, false); console.log("Failed assert(true,false)") }
+	catch (error) {  }
+
+	try { unittest.assert(false, true); console.log("Failed assert(false,true)") }
+	catch (error) {  }
+
+    try { unittest.assert("Test", "Test"); }
+	catch (error) { console.log("Failed assert('Test','Test')") }
+    
+    try { unittest.assert("Test", "Yay"); console.log("Failed assert('Test','Yay')") }
+	catch (error) {  }
+
+    try { unittest.assert({one: 1, two: 2}, {one: 1, two: 2}); }
+	catch (error) { console.log("Failed assert({one: 1, two: 2},{one: 1, two: 2})") }
+
+    try { unittest.assert({one: 1, two: 2}, {two: 2, three: 3}); console.log("Failed assert({one: 1, two: 2}, {two: 2, three: 3})") }
+	catch (error) {  }
+}
+assertion_test();
+
+function item_test () {
+	unittest.item("passing item", () => {
+		unittest.assert(1, 1);
+	});
+	unittest.item("failing item", () => {
+		unittest.assert(1, 2);
+	});
+}
+item_test();
+
+function test_test () {
+    unittest.test("example test", () => {
+		unittest.item("assert 1 = 1", () => {
+			unittest.assert(1, 1);
+		});
+		unittest.item("assert 1 = 2", () => {
+			unittest.assert(1, 2);
+		})
+	});
+}
+test_test();
+
+function environment_test () {
+	function testfunc1 () {
+		window.localStorage.clear();
+		window.localStorage.setItem("testkey", "testvalue");
+		return window.localStorage.getItem("testkey");
+	}
+
+	function testfunc2 (){
+		window.localStorage.removeItem("testkey");
+	}
+
+	unittest.test("test add item", () => {
+		unittest.item("testfunc1", () => {
+			unittest.assert(testfunc1(), "testvalue");
+		});
+	});
+
+	unittest.test("test delete item", () => {
+		unittest.item("testfunc2", () => {
+			unittest.assert(testfunc2(), undefined);
+		});
+	});
+}
+environment_test();
\ No newline at end of file