From 8b3edc0401da5615cbb50de707bd0d63ca15fe68 Mon Sep 17 00:00:00 2001
From: Felix Angelov <felangelov@gmail.com>
Date: Thu, 18 Jul 2019 15:03:15 -0500
Subject: [PATCH] Add operatingSystemVersion

---
 lib/src/interface/local_platform.dart | 3 +++
 lib/src/interface/platform.dart       | 4 ++++
 lib/src/testing/fake_platform.dart    | 6 ++++++
 test/fake_platform_test.dart          | 2 ++
 test/platform.json                    | 1 +
 5 files changed, 16 insertions(+)

diff --git a/lib/src/interface/local_platform.dart b/lib/src/interface/local_platform.dart
index 27c1871..20b4bbe 100644
--- a/lib/src/interface/local_platform.dart
+++ b/lib/src/interface/local_platform.dart
@@ -20,6 +20,9 @@ class LocalPlatform extends Platform {
   @override
   String get operatingSystem => io.Platform.operatingSystem;
 
+  @override
+  String get operatingSystemVersion => io.Platform.operatingSystemVersion;
+
   @override
   String get localHostname => io.Platform.localHostname;
 
diff --git a/lib/src/interface/platform.dart b/lib/src/interface/platform.dart
index 1ebc5a9..afc527a 100644
--- a/lib/src/interface/platform.dart
+++ b/lib/src/interface/platform.dart
@@ -22,6 +22,9 @@ abstract class Platform {
   /// representing the operating system.
   String get operatingSystem;
 
+  /// A string representing the version of the operating system or platform.
+  String get operatingSystemVersion;
+
   /// Get the local hostname for the system.
   String get localHostname;
 
@@ -129,6 +132,7 @@ abstract class Platform {
       'numberOfProcessors': numberOfProcessors,
       'pathSeparator': pathSeparator,
       'operatingSystem': operatingSystem,
+      'operatingSystemVersion': operatingSystemVersion,
       'localHostname': localHostname,
       'environment': environment,
       'executable': executable,
diff --git a/lib/src/testing/fake_platform.dart b/lib/src/testing/fake_platform.dart
index 3626d54..0d868bd 100644
--- a/lib/src/testing/fake_platform.dart
+++ b/lib/src/testing/fake_platform.dart
@@ -16,6 +16,7 @@ class FakePlatform extends Platform {
     this.numberOfProcessors,
     this.pathSeparator,
     this.operatingSystem,
+    this.operatingSystemVersion,
     this.localHostname,
     this.environment,
     this.executable,
@@ -36,6 +37,7 @@ class FakePlatform extends Platform {
       : numberOfProcessors = platform.numberOfProcessors,
         pathSeparator = platform.pathSeparator,
         operatingSystem = platform.operatingSystem,
+        operatingSystemVersion = platform.operatingSystemVersion,
         localHostname = platform.localHostname,
         environment = new Map<String, String>.from(platform.environment),
         executable = platform.executable,
@@ -61,6 +63,7 @@ class FakePlatform extends Platform {
       numberOfProcessors: map['numberOfProcessors'],
       pathSeparator: map['pathSeparator'],
       operatingSystem: map['operatingSystem'],
+      operatingSystemVersion: map['operatingSystemVersion'],
       localHostname: map['localHostname'],
       environment: map['environment'].cast<String, String>(),
       executable: map['executable'],
@@ -85,6 +88,9 @@ class FakePlatform extends Platform {
   @override
   String operatingSystem;
 
+  @override
+  String operatingSystemVersion;
+
   @override
   String localHostname;
 
diff --git a/test/fake_platform_test.dart b/test/fake_platform_test.dart
index 1fa7e8f..90d8209 100644
--- a/test/fake_platform_test.dart
+++ b/test/fake_platform_test.dart
@@ -11,6 +11,7 @@ void _expectPlatformsEqual(Platform actual, Platform expected) {
   expect(actual.numberOfProcessors, expected.numberOfProcessors);
   expect(actual.pathSeparator, expected.pathSeparator);
   expect(actual.operatingSystem, expected.operatingSystem);
+  expect(actual.operatingSystemVersion, expected.operatingSystemVersion);
   expect(actual.localHostname, expected.localHostname);
   expect(actual.environment, expected.environment);
   expect(actual.executable, expected.executable);
@@ -63,6 +64,7 @@ void main() {
         expect(fake.numberOfProcessors, 8);
         expect(fake.pathSeparator, '/');
         expect(fake.operatingSystem, 'macos');
+        expect(fake.operatingSystemVersion, '10.14.5');
         expect(fake.localHostname, 'platform.test.org');
         expect(fake.environment, <String, String>{
           'PATH': '/bin',
diff --git a/test/platform.json b/test/platform.json
index a39381c..8fb41ee 100644
--- a/test/platform.json
+++ b/test/platform.json
@@ -2,6 +2,7 @@
   "numberOfProcessors": 8,
   "pathSeparator": "/",
   "operatingSystem": "macos",
+  "operatingSystemVersion": "10.14.5",
   "localHostname": "platform.test.org",
   "environment": {
     "PATH": "/bin",