Merge pull request wesbos#1 from xandora/jester-tester

Author: xandora

.gitignore

@@ -1 +1,4 @@
-.vscode
+.vscode
+node_modules
+package-lock.json
+package.json

README.md

@@ -9,10 +9,12 @@ There will eventually be a suggested order of completion, but at this time since
 ## How To Use These Exercises
 Before you start you should have a few things installed on your machine:
 1. NPM. To check if you have NPM installed, type `npm --version` in your terminal. If you get back `Command 'npm' not found, but can be installed with:`, do NOT follow the instructions in the terminal to install with `apt-get`. (This causes permission issues.) Instead, install Node with NVM by following the instructions [here](https://github.com/TheOdinProject/curriculum/blob/master/foundations/installations/installing_node.md).
-2. Jasmine. Jasmine is a testing framework for JavaScript. Type `jasmine -v` to check for it. If you need to install it, type `npm install -g jasmine` to do so.
-3. A copy of this repository. Copies of repositories on your machine are called clones. If you need help cloning, you can learn how [here](https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/cloning-a-repository)
+2. Jest. Jest is a testing framework for JavaScript. To install it, type `npm install --save-dev jest`. We use `--save-dev` here to specify this module is for development purposes only.
+3. A copy of this repository. Copies of repositories on your machine are called clones. If you need help cloning, you can learn how [here](https://docs.github.com/en/github/creating-cloning-and-archiving-repositories/cloning-a-repository).
 
-Each exercise includes 3 files: a markdown file with a description of the task, an empty (or mostly empty) JavaScript file, and a set of tests. To complete an exercise, you'll need to go to the exercise directory with `cd exerciseName` in the terminal and run `jasmine exerciseName.spec.js`. This should run the test file and show you the output. When you first run a test, it will fail. This is by design! You must open the exercise file and write the code needed to get the test to pass. Some of the exercises have test conditions defined in their spec file that are defined as 'xit' compared to 'it'. This is purposeful. After you pass your first 'it', you will change the next 'xit' to an 'it' and test your code again. You'll do this until all conditions are satisfied.
+Each exercise includes 3 files: a markdown file with a description of the task, an empty (or mostly empty) JavaScript file, and a set of tests. To complete an exercise, you'll need to go to the exercise directory with `cd exerciseName` in the terminal and run `npm test exerciseName.spec.js`. This should run the test file and show you the output. When you first run a test, it will fail. This is by design! You must open the exercise file and write the code needed to get the test to pass. Some of the exercises have test conditions defined in their spec file that are defined as 'test.skip' compared to 'test'. This is purposeful. After you pass your first 'test', you will change the next 'test.skip' to an 'test' and test your code again. You'll do this until all conditions are satisfied.
+
+**Note**: Due to the way Jest handles failed tests, it will return an exit code of 1 if any tests fail. NPM will interpret this as an error and you may see some `npm ERR!` messages after Jest runs. You can ignore these, or run your test with `npm test exerciseName.spec.js --silent` to supress the errors.
 
 The first exercise, `helloWorld`, will walk you through the process in-depth.
 

caesar/caesar.spec.js

@@ -1,25 +1,23 @@
 const caesar = require('./caesar')
 
-describe('caesar', function() {
-  it('works with single letters', function() {
-    expect(caesar('A', 1)).toEqual('B');
-  });
-  xit('works with words', function() {
-    expect(caesar('Aaa', 1)).toEqual('Bbb');
-  });
-  xit('works with phrases', function() {
-    expect(caesar('Hello, World!', 5)).toEqual('Mjqqt, Btwqi!');
-  });
-  xit('works with negative shift', function() {
-    expect(caesar('Mjqqt, Btwqi!', -5)).toEqual('Hello, World!');
-  });
-  xit('wraps', function() {
-    expect(caesar('Z', 1)).toEqual('A');
-  });
-  xit('works with large shift factors', function() {
-    expect(caesar('Hello, World!', 75)).toEqual('Ebiil, Tloia!');
-  });
-  xit('works with large negative shift factors', function() {
-    expect(caesar('Hello, World!', -29)).toEqual('Ebiil, Tloia!');
-  });
+test('works with single letters', () => {
+  expect(caesar('A', 1)).toBe('B');
+});
+test.skip('works with words', () => {
+  expect(caesar('Aaa', 1)).toBe('Bbb');
+});
+test.skip('works with phrases', () => {
+  expect(caesar('Hello, World!', 5)).toBe('Mjqqt, Btwqi!');
+});
+test.skip('works with negative shift', () => {
+  expect(caesar('Mjqqt, Btwqi!', -5)).toBe('Hello, World!');
+});
+test.skip('wraps', () => {
+  expect(caesar('Z', 1)).toBe('A');
+});
+test.skip('works with large shift factors', () => {
+  expect(caesar('Hello, World!', 75)).toBe('Ebiil, Tloia!');
+});
+test.skip('works with large negative shift factors', () => {
+  expect(caesar('Hello, World!', -29)).toBe('Ebiil, Tloia!');
 });

calculator/calculator.js

@@ -1,25 +1,25 @@
-function add () {
-	
+const add = function() {
+
 }
 
-function subtract () {
-	
+const subtract = function() {
+
 }
 
-function sum () {
-	
+const sum = function() {
+
 }
 
-function multiply () {
-	
+const mulitply = function() {
+
 }
 
-function power() {
-	
+const power = function() {
+
 }
 
-function factorial() {
-	
+const factorial = function() {
+
 }
 
 module.exports = {

calculator/calculator.spec.js

@@ -1,77 +1,77 @@
 const calculator = require ('./calculator.js');
 
-describe('add', function() {
-	it('adds 0 and 0', function() {
-		expect(calculator.add(0,0)).toEqual(0);
+describe('add', () => {
+	test('adds 0 and 0', () => {
+		expect(calculator.add(0,0)).toBe(0);
 	});
 
-	xit('adds 2 and 2', function() {
-		expect(calculator.add(2,2)).toEqual(4);
+	test('adds 2 and 2', () => {
+		expect(calculator.add(2,2)).toBe(4);
 	});
 
-	xit('adds positive numbers', function() {
-		expect(calculator.add(2,6)).toEqual(8);
+	test('adds positive numbers', () => {
+		expect(calculator.add(2,6)).toBe(8);
 	});
 });
 
-describe('subtract', function() {
-	xit('subtracts numbers', function() {
-		expect(calculator.subtract(10,4)).toEqual(6);
+describe('subtract', () => {
+	test('subtracts numbers', () => {
+		expect(calculator.subtract(10,4)).toBe(6);
 	});
 });
 
-describe('sum', function() {
-	xit('computes the sum of an empty array', function() {
-		expect(calculator.sum([])).toEqual(0);
+describe('sum', () => {
+	test('computes the sum of an empty array', () => {
+		expect(calculator.sum([])).toBe(0);
 	});
 
-	xit('computes the sum of an array of one number', function() {
-		expect(calculator.sum([7])).toEqual(7);
+	test('computes the sum of an array of one number', () => {
+		expect(calculator.sum([7])).toBe(7);
 	});
 
-	xit('computes the sum of an array of two numbers', function() {
-		expect(calculator.sum([7,11])).toEqual(18);
+	test('computes the sum of an array of two numbers', () => {
+		expect(calculator.sum([7,11])).toBe(18);
 	});
 
-	xit('computes the sum of an array of many numbers', function() {
-		expect(calculator.sum([1,3,5,7,9])).toEqual(25);
+	test('computes the sum of an array of many numbers', () => {
+		expect(calculator.sum([1,3,5,7,9])).toBe(25);
 	});
 });
 
-describe('multiply', function() {
-	xit('multiplies two numbers', function() {
-		expect(calculator.multiply([2,4])).toEqual(8);
+describe('multiply', () => {
+	test('multiplies two numbers', () => {
+		expect(calculator.multiply([2,4])).toBe(8);
 	});
 
-	xit('multiplies several numbers', function() {
-		expect(calculator.multiply([2,4,6,8,10,12,14])).toEqual(645120);
+	test('multiplies several numbers', () => {
+		expect(calculator.multiply([2,4,6,8,10,12,14])).toBe(645120);
 	});
 });
 
-describe('power', function() {
-	xit('raises one number to the power of another number', function() {
-		expect(calculator.power(4,3)).toEqual(64); // 4 to third power is 64
+describe('power', () => {
+	test('raises one number to the power of another number', () => {
+		expect(calculator.power(4,3)).toBe(64); // 4 to third power is 64
 	});
 });
 
-describe('factorial', function() {
-	xit('computes the factorial of 0', function() {
-		expect(calculator.factorial(0)).toEqual(1); // 0! = 1
+describe('factorial', () => {
+	test.skip('computes the factorial of 0', () => {
+		expect(calculator.factorial(0)).toBe(1); // 0! = 1
 	});
 
-	xit('computes the factorial of 1', function() {
-		expect(calculator.factorial(1)).toEqual(1);
+	test.skip('computes the factorial of 1', () => {
+		expect(calculator.factorial(1)).toBe(1);
 	});
 
-	xit('computes the factorial of 2', function() {
-		expect(calculator.factorial(2)).toEqual(2);
+	test.skip('computes the factorial of 2', () => {
+		expect(calculator.factorial(2)).toBe(2);
 	});
 
-	xit('computes the factorial of 5', function() {
-		expect(calculator.factorial(5)).toEqual(120);
+	test.skip('computes the factorial of 5', () => {
+		expect(calculator.factorial(5)).toBe(120);
 	});
 
-	xit('computes the factorial of 10', function() {
-		expect(calculator.factorial(10)).toEqual(3628800);
+	test.skip('computes the factorial of 10', () => {
+		expect(calculator.factorial(10)).toBe(3628800);
 	});
 });

fibonacci/fibonacci.js

@@ -2,4 +2,4 @@ const fibonacci = function() {
 
 }
 
-module.exports = fibonacci
+module.exports = fibonacci;

fibonacci/fibonacci.spec.js

@@ -1,31 +1,31 @@
 const fibonacci = require('./fibonacci')
 
-describe('fibonacci', function() {
-  it('works', function() {
-    expect(fibonacci(4)).toEqual(3);
+describe('fibonacci', () => {
+  test('4th fibonacci number is 3', () => {
+    expect(fibonacci(4)).toBe(3);
   });
-  xit('works', function() {
-    expect(fibonacci(6)).toEqual(8);
+  test.skip('6th fibonacci number is 8', () => {
+    expect(fibonacci(6)).toBe(8);
   });
-  xit('works', function() {
-    expect(fibonacci(10)).toEqual(55);
+  test.skip('10th fibonacci number is 55', () => {
+    expect(fibonacci(10)).toBe(55);
   });
-  xit('works', function() {
-    expect(fibonacci(15)).toEqual(610);
+  test.skip('15th fibonacci number is 610', () => {
+    expect(fibonacci(15)).toBe(610);
   });
-  xit('works', function() {
-    expect(fibonacci(25)).toEqual(75025);
+  test.skip('25th fibonacci number is 75025', () => {
+    expect(fibonacci(25)).toBe(75025);
   });
-  xit('doesn\'t accept negatives', function() {
-    expect(fibonacci(-25)).toEqual("OOPS");
+  test.skip('doesn\'t accept negatives', () => {
+    expect(fibonacci(-25)).toBe("OOPS");
   });
-  xit('DOES accept strings', function() {
-    expect(fibonacci("1")).toEqual(1);
+  test.skip('DOES accept strings', () => {
+    expect(fibonacci("1")).toBe(1);
   });
-  xit('DOES accept strings', function() {
-    expect(fibonacci("2")).toEqual(1);
+  test.skip('DOES accept strings', () => {
+    expect(fibonacci("2")).toBe(1);
   });
-  xit('DOES accept strings', function() {
-    expect(fibonacci("8")).toEqual(21);
+  test.skip('DOES accept strings', () => {
+    expect(fibonacci("8")).toBe(21);
   });
 });

findTheOldest/findTheOldest.js

@@ -1,4 +1,4 @@
-let findTheOldest = function() {
+const findTheOldest = function() {
 
 }
 

findTheOldest/findTheOldest.spec.js

@@ -1,7 +1,7 @@
-let findTheOldest = require('./findTheOldest')
+const findTheOldest = require('./findTheOldest')
 
-describe('findTheOldest', function() {
-  it('finds the oldest person!', function() {
+describe('findTheOldest', () => {
+  test('finds the oldest person!', () => {
     const people = [
       {
         name: 'Carly',
@@ -19,9 +19,9 @@ describe('findTheOldest', function() {
         yearOfDeath: 1941
       },
     ]
-    expect(findTheOldest(people).name).toEqual('Ray');
+    expect(findTheOldest(people).name).toBe('Ray');
   });
-  xit('finds the oldest person if someone is still living', function() {
+  test.skip('finds the oldest person if someone is still living', () => {
     const people = [
       {
         name: 'Carly',
@@ -38,9 +38,9 @@ describe('findTheOldest', function() {
         yearOfDeath: 1941
       },
     ]
-    expect(findTheOldest(people).name).toEqual('Ray');
+    expect(findTheOldest(people).name).toBe('Ray');
   });
-  xit('finds the oldest person if the OLDEST is still living', function() {
+  test.skip('finds the oldest person if the OLDEST is still living', () => {
     const people = [
       {
         name: 'Carly',
@@ -57,7 +57,7 @@ describe('findTheOldest', function() {
         yearOfDeath: 1941
       },
     ]
-    expect(findTheOldest(people).name).toEqual('Carly');
+    expect(findTheOldest(people).name).toBe('Carly');
   });
 
 });

getTheTitles/getTheTitles.spec.js

@@ -1,6 +1,6 @@
-let getTheTitles = require('./getTheTitles')
+const getTheTitles = require('./getTheTitles')
 
-describe('getTheTitles', function() {
+describe('getTheTitles', () => {
     const books = [
       {
         title: 'Book',
@@ -12,8 +12,8 @@ describe('getTheTitles', function() {
       }
     ]
 
-  it('gets titles', function() {
-    expect(getTheTitles(books)).toEqual(['Book','Book2']);
+  test('gets titles', () => {
+    expect(getTheTitles(books)).toBe(['Book','Book2']);
   });
 
 });