test: adding some basic npm ls tests

Credit: @zkat
PR-URL: https://github.com/npm/npm/pull/12685
Reviewed-By: @othiym23

1 files changed, 151 insertions, 0 deletions

diff --git a/test/tap/ls.js b/test/tap/ls.js
new file mode 100644
index 000000000..f75811ec8
--- /dev/null
+++ b/test/tap/ls.js
@@ -0,0 +1,151 @@
+'use strict'
+var test = require('tap').test
+var path = require('path')
+var rimraf = require('rimraf')
+var common = require('../common-tap.js')
+var basepath = path.resolve(__dirname, path.basename(__filename, '.js'))
+var fixturepath = path.resolve(basepath, 'npm-test-files')
+var pkgpath = path.resolve(fixturepath, 'npm-test-ls')
+var Tacks = require('tacks')
+var File = Tacks.File
+var Dir = Tacks.Dir
+
+test('ls without arg', function (t) {
+  var fixture = new Tacks(
+    Dir({
+      'npm-test-ls': Dir({
+        'package.json': File({
+          name: 'npm-test-ls',
+          version: '1.0.0',
+          dependencies: {
+            'dep': 'file:../dep'
+          }
+        })
+      }),
+      'dep': Dir({
+        'package.json': File({
+          name: 'dep',
+          version: '1.0.0'
+        })
+      })
+    })
+  )
+  withFixture(t, fixture, function (done) {
+    common.npm([
+      'ls', '--json'
+    ], {
+      cwd: pkgpath
+    }, function (err, code, stdout, stderr) {
+      t.ifErr(err, 'ls succeeded')
+      t.equal(0, code, 'exit 0 on ls')
+      var pkg = JSON.parse(stdout)
+      var deps = pkg.dependencies
+      t.ok(deps.dep, 'dep present')
+      done()
+    })
+  })
+})
+
+test('ls with filter arg', function (t) {
+  var fixture = new Tacks(
+    Dir({
+      'npm-test-ls': Dir({
+        'package.json': File({
+          name: 'npm-test-ls',
+          version: '1.0.0',
+          dependencies: {
+            'dep': 'file:../dep'
+          }
+        })
+      }),
+      'dep': Dir({
+        'package.json': File({
+          name: 'dep',
+          version: '1.0.0'
+        })
+      }),
+      'otherdep': Dir({
+        'package.json': File({
+          name: 'otherdep',
+          version: '1.0.0'
+        })
+      })
+    })
+  )
+  withFixture(t, fixture, function (done) {
+    common.npm([
+      'ls', 'dep',
+      '--json'
+    ], {
+      cwd: path.join(fixturepath, 'npm-test-ls')
+    }, function (err, code, stdout, stderr) {
+      t.ifErr(err, 'ls succeeded')
+      t.equal(0, code, 'exit 0 on ls')
+      var pkg = JSON.parse(stdout)
+      var deps = pkg.dependencies
+      t.ok(deps.dep, 'dep present')
+      t.notOk(deps.otherdep, 'other dep not present')
+      done()
+    })
+  })
+})
+
+test('ls with missing filtered arg', function (t) {
+  var fixture = new Tacks(
+    Dir({
+      'npm-test-ls': Dir({
+        'package.json': File({
+          name: 'npm-test-ls',
+          version: '1.0.0',
+          dependencies: {
+            'dep': 'file:../dep'
+          }
+        })
+      }),
+      'dep': Dir({
+        'package.json': File({
+          name: 'dep',
+          version: '1.0.0'
+        })
+      })
+    })
+  )
+  withFixture(t, fixture, function (done) {
+    common.npm([
+      'ls', 'notadep',
+      '--json'
+    ], {
+      cwd: path.join(fixturepath, 'npm-test-ls')
+    }, function (err, code, stdout, stderr) {
+      t.ifErr(err, 'ls succeeded')
+      t.equal(1, code, 'exit 1 on ls')
+      var pkg = JSON.parse(stdout)
+      var deps = pkg.dependencies
+      t.notOk(deps, 'deps missing')
+      t.done()
+    })
+  })
+})
+
+test('cleanup', function (t) {
+  rimraf.sync(basepath)
+  t.done()
+})
+
+function withFixture (t, fixture, tester) {
+  fixture.create(fixturepath)
+  common.npm(['install'], {
+    cwd: path.join(fixturepath, 'npm-test-ls')
+  }, checkAndTest)
+  function checkAndTest (err, code) {
+    if (err) throw err
+    t.is(code, 0, 'install went ok')
+    tester(removeAndDone)
+  }
+  function removeAndDone (err) {
+    if (err) throw err
+    fixture.remove(fixturepath)
+    rimraf.sync(basepath)
+    t.done()
+  }
+}