Change name, add tests, minor fixes

atom/browser/api/atom_api_app.cc

@@ -875,7 +875,7 @@ std::string App::GetLocale() {
   return g_browser_process->GetApplicationLocale();
 }
 
-std::string App::GetRegion() {
+std::string App::GetLocaleCountryCode() {
   std::string region;
 #if defined(OS_WIN)
   WCHAR locale_name[LOCALE_NAME_MAX_LENGTH] = {0};
@@ -892,31 +892,25 @@ std::string App::GetRegion() {
   CFStringRef value = CFStringRef(
       static_cast<CFTypeRef>(CFLocaleGetValue(locale, kCFLocaleCountryCode)));
   const CFIndex kCStringSize = 128;
-  char temporaryCString[kCStringSize];
-  bzero(temporaryCString, kCStringSize);
+  char temporaryCString[kCStringSize] = {0};
   CFStringGetCString(value, temporaryCString, kCStringSize,
                      kCFStringEncodingUTF8);
   region = temporaryCString;
 #else
   const char* locale_ptr = setlocale(LC_TIME, NULL);
   if (locale_ptr == NULL)
     locale_ptr = setlocale(LC_NUMERIC, NULL);
-
   if (locale_ptr) {
     std::string locale = locale_ptr;
-    std::string::size_type rpos = locale.rfind('.');
+    std::string::size_type rpos = locale.find('.');
     if (rpos != std::string::npos)
       locale = locale.substr(0, rpos);
-
-    rpos = locale.rfind('_');
+    rpos = locale.find('_');
     if (rpos != std::string::npos && rpos + 1 < locale.size())
-      region = locale.substr(rpos + 1, 2);
+      region = locale.substr(rpos + 1);
   }
 #endif
-  if (region.size() == 2)
-    return region;
-
-  return std::string();
+  return region.size() == 2 ? region : std::string();
 }
 
 void App::OnSecondInstance(const base::CommandLine::StringVector& cmd,
@@ -1344,7 +1338,7 @@ void App::BuildPrototype(v8::Isolate* isolate,
       .SetMethod("setPath", &App::SetPath)
       .SetMethod("getPath", &App::GetPath)
       .SetMethod("setDesktopName", &App::SetDesktopName)
-      .SetMethod("getLocale", &App::GetLocale)
+      .SetMethod("getLocaleCountryCode", &App::GetLocaleCountryCode)
       .SetMethod("getRegion", &App::GetRegion)
 #if defined(USE_NSS_CERTS)
       .SetMethod("importCertificate", &App::ImportCertificate)

atom/browser/api/atom_api_app.h

@@ -182,7 +182,7 @@ class App : public AtomBrowserClient::Delegate,
 
   void SetDesktopName(const std::string& desktop_name);
   std::string GetLocale();
-  std::string GetRegion();
+  std::string GetLocaleCountryCode();
   void OnSecondInstance(const base::CommandLine::StringVector& cmd,
                         const base::FilePath& cwd);
   bool HasSingleInstanceLock() const;

docs/api/app.md

@@ -580,8 +580,9 @@ To set the locale, you'll want to use a command line switch at app startup, whic
 
 **Note:** On Windows you have to call it after the `ready` events gets emitted.
 
-### `app.getRegion()` _macOS_ _Linux_ _Windows_
-Returns `String` - User operating system region in ISO3166 [here](https://www.iso.org/iso-3166-country-codes.html). The value is taken from OS apis.
+### `app.GetLocaleCountryCode()`
+Returns `String` - User operating system´s region in ISO3166 [here](https://www.iso.org/iso-3166-country-codes.html). The value is taken from native OS APIs.
+
 **Note:** When unable to detect region, it returns empty string.
 
 ### `app.addRecentDocument(path)` _macOS_ _Windows_

spec/api-app-spec.js

@@ -122,6 +122,12 @@ describe('app module', () => {
     })
   })
 
+  describe('app.getLocaleCountryCode()', () => {
+    it('should be empty or have length of two', () => {
+      expect(app.getLocaleCountryCode()).to.have.lengthOf.oneOf([0, 2])
+    })
+  })
+
   describe('app.isPackaged', () => {
     it('should be false durings tests', () => {
       expect(app.isPackaged).to.be.false()