From c76f04ac28ddf2ae4df4b3ce0aec684a118de1b5 Mon Sep 17 00:00:00 2001
From: Yash Singh <saiansh2525@gmail.com>
Date: Tue, 23 Mar 2021 11:59:38 -0700
Subject: fix(set-script): add completion

PR-URL: https://github.com/npm/cli/pull/2925
Credit: @Yash-Singh1
Close: #2925
Reviewed-by: @ruyadorno
---
 test/lib/set-script.js | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'test')

diff --git a/test/lib/set-script.js b/test/lib/set-script.js
index b6b6e2519..dc00fd374 100644
--- a/test/lib/set-script.js
+++ b/test/lib/set-script.js
@@ -2,6 +2,43 @@ const test = require('tap')
 const requireInject = require('require-inject')
 const parseJSON = require('json-parse-even-better-errors')
 
+test.test('completion', t => {
+  const SetScript = requireInject('../../lib/set-script.js')
+  const emptyDir = t.testdir()
+  t.test('already have a script name', async t => {
+    const setScript = new SetScript({localPrefix: emptyDir})
+    const res = await setScript.completion({conf: {argv: {remain: ['npm', 'run', 'x']}}})
+    t.equal(res, undefined)
+    t.end()
+  })
+  t.test('no package.json', async t => {
+    const setScript = new SetScript({localPrefix: emptyDir})
+    const res = await setScript.completion({conf: {argv: {remain: ['npm', 'run']}}})
+    t.strictSame(res, [])
+    t.end()
+  })
+  t.test('has package.json, no scripts', async t => {
+    const localPrefix = t.testdir({
+      'package.json': JSON.stringify({}),
+    })
+    const setScript = new SetScript({localPrefix})
+    const res = await setScript.completion({conf: {argv: {remain: ['npm', 'run']}}})
+    t.strictSame(res, [])
+    t.end()
+  })
+  t.test('has package.json, with scripts', async t => {
+    const localPrefix = t.testdir({
+      'package.json': JSON.stringify({
+        scripts: { hello: 'echo hello', world: 'echo world' },
+      }),
+    })
+    const setScript = new SetScript({localPrefix})
+    const res = await setScript.completion({conf: {argv: {remain: ['npm', 'run']}}})
+    t.strictSame(res, ['hello', 'world'])
+    t.end()
+  })
+  t.end()
+})
 test.test('fails on invalid arguments', (t) => {
   const SetScript = requireInject('../../lib/set-script.js', {
     npmlog: {},
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