extract tmp helper

Author: Kelly Selden

src/download-package.js

@@ -1,8 +1,7 @@
 'use strict';
 
 const path = require('path');
-const { promisify } = require('util');
-const tmpDir = promisify(require('tmp').dir);
+const { createTmpDir } = require('./tmp');
 const npa = require('npm-package-arg');
 const run = require('./run');
 
@@ -17,7 +16,7 @@ async function downloadPackage(name, url, range) {
     url += `#semver:${range}`;
   }
 
-  let newTmpDir = await tmpDir();
+  let newTmpDir = await createTmpDir();
   let output = await run(`npm install ${url}`, { cwd: newTmpDir });
   // if (!name) {
   //   name = output.match(/^\+ (.*)@\d\.\d\.\d.*$/m)[1];

src/tmp.js

@@ -0,0 +1,8 @@
+'use strict';
+
+const { promisify } = require('util');
+const createTmpDir = promisify(require('tmp').dir);
+
+module.exports = {
+  createTmpDir
+};

test/integration/check-for-blueprint-updates-test.js

@@ -5,16 +5,15 @@ const { expect } = require('../helpers/chai');
 const checkForBlueprintUpdates = require('../../src/check-for-blueprint-updates');
 const { initBlueprint } = require('../helpers/blueprint');
 const loadSafeBlueprintFile = require('../../src/load-safe-blueprint-file');
-const { promisify } = require('util');
-const tmpDir = promisify(require('tmp').dir);
+const { createTmpDir } = require('../../src/tmp');
 
 describe(checkForBlueprintUpdates, function() {
   this.timeout(30 * 1000);
 
   let tmpPath;
 
   beforeEach(async function() {
-    tmpPath = await tmpDir();
+    tmpPath = await createTmpDir();
   });
 
   it('works', async function() {

test/integration/download-package-test.js

@@ -8,8 +8,7 @@ const { initBlueprint } = require('../helpers/blueprint');
 const parseBlueprintPackage = require('../../src/parse-blueprint-package');
 const downloadPackage = require('../../src/download-package');
 const loadSafeBlueprintFile = require('../../src/load-safe-blueprint-file');
-const { promisify } = require('util');
-const tmpDir = promisify(require('tmp').dir);
+const { createTmpDir } = require('../../src/tmp');
 const fs = require('fs-extra');
 
 describe(downloadPackage, function() {
@@ -18,7 +17,7 @@ describe(downloadPackage, function() {
   let tmpPath;
 
   beforeEach(async function() {
-    tmpPath = path.join(await tmpDir(), 'app');
+    tmpPath = path.join(await createTmpDir(), 'app');
     await fs.mkdir(tmpPath);
   });
 

test/integration/save-blueprint-file-test.js

@@ -3,15 +3,14 @@
 const { describe, it } = require('../helpers/mocha');
 const { expect } = require('../helpers/chai');
 const path = require('path');
-const { promisify } = require('util');
-const tmpDir = promisify(require('tmp').dir);
+const { createTmpDir } = require('../../src/tmp');
 const saveBlueprintFile = require('../../src/save-blueprint-file');
 
 describe(saveBlueprintFile, function() {
   let tmpPath;
 
   beforeEach(async function() {
-    tmpPath = await tmpDir();
+    tmpPath = await createTmpDir();
   });
 
   it('works', async function() {