WIP - test for cli args

test/cli-test.js

@@ -3,13 +3,92 @@
 const { test } = require('tap')
 const { spawn } = require('child_process')
 const subsystems = require('../lib/rules/subsystem')
+const rules = require('../lib/rules')
+const { promisify } = require('util')
+const fs = require('fs')
+
+
+const readFile = promisify(fs.readFile)
+
+
+const cmd = './bin/cmd.js'
 
 test('Test cli flags', (t) => {
+  t.test('test usage', (tt) => {
+    const usage = spawn(cmd, ['--help'])
+    let chunk = ''
+    usage.stdout.on('data', (data) => {
+      chunk += data
+    })
+
+    usage.stderr.on('data', (data) => {
+      tt.fail('This should not happen')
+    })
+
+    usage.on('close', async () => {
+      const usageTxt = await readFile(`${process.cwd()}/bin/usage.txt`, 'utf8')
+      tt.equal(chunk, usageTxt, 'helps should be equal')
+      tt.end()
+    })
+  })
+
+  t.test('test version', (tt) => {
+    const version = spawn(cmd, ['--version'])
+    let chunk = ''
+
+    version.stdout.on('data', (data) => {
+      chunk += data
+    })
+
+    version.stderr.on('data', (data) => {
+      tt.fail('this should not happen')
+    })
+
+    version.on('close', (code) => {
+      tt.equal(chunk.trim(),
+               `core-validate-commit v${require('../package.json').version}`,
+               'Versions should be equal to the version in the package.json')
+      tt.end()
+    })
+
+  })
+
+  t.test('test list flag', (tt) => {
+    const list = spawn(cmd, ['--list'])
+    let chunk = ''
+    list.stdout.on('data', (data) => {
+      chunk += data
+    })
+
+    list.stderr.on('data', (data) => {
+      tt.fail('This should not happen')
+    })
+
+    list.on('close', (code) => {
+      const rulesFromOutput = chunk.trim().split('\n')
+      const missing = []
+      for (const rule in rules) {
+        const filtered = rulesFromOutput.find((x) => {
+          return x.trim()
+              === `${rules[rule].id} ${rules[rule].meta.description}`
+        })
+
+        if (!filtered) {
+          missing.push(rule)
+        }
+      }
+
+      tt.equal(missing.length, 0, 'Should have no missing subsystems')
+
+      tt.end()
+    })
+  })
+
   t.test('test list-subsystems', (tt) => {
-    const ls = spawn('./bin/cmd.js', ['--list-subsystems'])
-    let compiledData = ''
+    const ls = spawn(cmd, ['--list-subsystems'])
+    let chunk = ''
     ls.stdout.on('data', (data) => {
-      compiledData += data
+      chunk += data
     })
 
     ls.stderr.on('data', (data) => {
@@ -19,7 +98,7 @@ test('Test cli flags', (t) => {
     ls.on('close', (code) => {
       // Get the list of subsytems as an Array.
       // Need to match words that also have the "-" in them
-      const subsystemsFromOutput = compiledData.match(/[\w'-]+/g)
+      const subsystemsFromOutput = chunk.match(/[\w'-]+/g)
       const defaultSubsystems = subsystems.defaults.subsystems
 
       tt.equal(subsystemsFromOutput.length,