test: Add the sidebar file already exists test

Author: sy-records

Diff for: e2e/commands/generate.test.js

@@ -25,4 +25,7 @@ test('generate _sidebar.md', t => {
   run(['generate', 'docs'], {cwd: genPath})
   // Check for existence
   t.true(fs.existsSync(path.join(docsPath, '_sidebar.md')))
+
+  const {stderr} = run(['generate', 'docs'], {cwd: genPath})
+  t.is(stderr, 'the sidebar file \'_sidebar.md\' already exists.')
 })

Diff for: lib/commands/generate.js

@@ -21,7 +21,7 @@ module.exports = function (path = '', sidebar) {
         return true
       }
 
-      console.error(chalk.red(`${sidebarPath}`) + ' already exists.')
+      console.error(chalk.red(`the sidebar file '${sidebar}' already exists.`))
       return false
     }
   }

Diff for: lib/commands/init.js

@@ -22,7 +22,7 @@ module.exports = function (path = '', local, theme) {
   const cwdPath = cwd(path || '.')
 
   if (exists(cwdPath)) {
-    console.log(chalk.red(`${path || '.'}`) + ' already exists.')
+    console.log(chalk.red(`${path || '.'} already exists.`))
 
     prompt({
       type: 'confirm',