src/cli.ts

@@ -1,6 +1,7 @@
 import { Command } from "commander";
 import randomBunny from "./index";
 import ICliOptions from "./contracts/ICliOptions";
+import { exit } from "process";
 
 const program = new Command();
 
@@ -30,10 +31,12 @@ randomBunny(options.subreddit)
             outputLines.push(`Upvotes = ${result.Ups}`);
             outputLines.push(`Url = ${result.Url}`);
 
-            console.log(outputLines.join("\n") + "\n");
+            console.log(outputLines.join("\n"));
+            exit(0);
         } else {
             const error = response.Error!;
 
             console.error(error.Message, error.Code);
+            exit(1);
         }
     });

tests/cli.test.ts

@@ -1,6 +1,31 @@
 import { exec } from "child_process";
 import path from "path";
 
+describe('default', () => {
+    test('GIVEN no options are supplied, EXPECT standard output', async () => {
+        const result = await cli([], '.');
+
+        const keys = result.stdout.split('\n')
+            .flatMap(x => x.split(' = ')[0])
+            .filter(x => x && x.length > 0);
+        const values = result.stdout.split('\n')
+            .flatMap(x => x.split(' = ')[1])
+            .filter(x => x && x.length > 0);
+
+
+        expect(result.code).toBe(0);
+        expect(keys).toStrictEqual(['Archived', 'Downvotes', 'Hidden', 'Permalink', 'Subreddit', 'Subreddit Subscribers', 'Title', 'Upvotes', 'Url']);
+        expect(values.length).toBe(9);
+    }, 5000);
+
+    test('GIVEN an error occurs, EXPECT error output', async () => {
+        const result = await cli(['-s', 'textonly'], '.');
+
+        expect(result.code).toBe(1);
+        expect(result.stderr).toBeDefined();
+    }, 5000);
+});
+
 describe('version', () => {
     test('GIVEN -V flag is supplied, EXPECT version returned', async () => {
         const result = await cli(['-V'], '.');
@@ -31,6 +56,38 @@ describe('help', () => {
         expect(result.code).toBe(0);
         expect(result.stdout.split('\n')[0]).toBe('Usage: random-bunny [options]');
     });
+});
+
+describe('subreddit', () => {
+    test('GIVEN -s is not supplied, EXPECT subreddit to be defaulted', async () => {
+        const result = await cli([], '.');
+
+        const subreddit = result.stdout.split('\n')
+            .find(x => x && x.length > 0 && x.split(' = ')[0] == 'Subreddit')!
+            .split(' = ')[1];
+
+        expect(subreddit).toBe('Rabbits');
+    }, 5000);
+
+    test('GIVEN -s is supplied, EXPECT subreddit to be changed', async () => {
+        const result = await cli(['-s', 'horses'], '.');
+
+        const subreddit = result.stdout.split('\n')
+            .find(x => x && x.length > 0 && x.split(' = ')[0] == 'Subreddit')!
+            .split(' = ')[1];
+
+        expect(subreddit).toBe('Horses');
+    }, 5000);
+
+    test('GIVEN --subreddit is supplied, EXPECT subreddit to be changed', async () => {
+        const result = await cli(['--subreddit', 'horses'], '.');
+
+        const subreddit = result.stdout.split('\n')
+            .find(x => x && x.length > 0 && x.split(' = ')[0] == 'Subreddit')!
+            .split(' = ')[1];
+
+        expect(subreddit).toBe('Horses');
+    }, 5000);
 })
 
 function cli(args: string[], cwd: string): Promise<cliResult> {