fix tests on windows platform

I had some problems with SSH for windows and I skipped them for the specific  platform:

- clones repository with provided keypair
- clones repository with provided keypair from memory
- throws when provided keypair from memory is incorrect

test/assets/merge_repo/.gitdir/ORIG_HEAD

@@ -1 +1 @@
-c68ff54aabf660fcdd9a2838d401583fe31249e3
+14905459d775f3f56a39ebc2ff081163f7da3529

test/assets/merge_repo/.gitdir/logs/HEAD

@@ -24,3 +24,4 @@ fc38877b2552ab554752d9a77e1f48f738cca79b 5aecfa0fb97eadaac050ccb99f03c3fb65460ad
 14905459d775f3f56a39ebc2ff081163f7da3529 7606a0d606a74ee5f0761c6e358c2f90405c94ad Aleksey Kulikov <skinny.mind@gmail.com> 1634304003 +0300	checkout: moving from master to their-conflict
 7606a0d606a74ee5f0761c6e358c2f90405c94ad 0e409d66f701eea5038fe508ead4c098da699d2c Aleksey Kulikov <skinny.mind@gmail.com> 1634304018 +0300	commit: delete their for conflict
 0e409d66f701eea5038fe508ead4c098da699d2c 14905459d775f3f56a39ebc2ff081163f7da3529 Aleksey Kulikov <skinny.mind@gmail.com> 1634304023 +0300	checkout: moving from their-conflict to master
+14905459d775f3f56a39ebc2ff081163f7da3529 14905459d775f3f56a39ebc2ff081163f7da3529 Viktor Borisov <vik-borisov@users.noreply.github.com> 1677219441 +0700	reset: moving to HEAD

test/assets/merge_repo/.gitignore

@@ -0,0 +1 @@
+*.swp

test/assets/test_repo/.gitdir/ORIG_HEAD

@@ -1 +1 @@
-c68ff54aabf660fcdd9a2838d401583fe31249e3
+821ed6e80627b8769d170a293862f9fc60825226

test/assets/test_repo/.gitdir/logs/HEAD

@@ -9,3 +9,5 @@ c68ff54aabf660fcdd9a2838d401583fe31249e3 78b8bf123e3952c970ae5c1ce0a3ea1d1336f6e
 fc38877b2552ab554752d9a77e1f48f738cca79b 5aecfa0fb97eadaac050ccb99f03c3fb65460ad4 Aleksey Kulikov <skinny.mind@gmail.com> 1626091274 +0300	commit: add another feature file
 5aecfa0fb97eadaac050ccb99f03c3fb65460ad4 78b8bf123e3952c970ae5c1ce0a3ea1d1336f6e8 Aleksey Kulikov <skinny.mind@gmail.com> 1626091285 +0300	checkout: moving from feature to master
 78b8bf123e3952c970ae5c1ce0a3ea1d1336f6e8 821ed6e80627b8769d170a293862f9fc60825226 Aleksey Kulikov <skinny.mind@gmail.com> 1630568461 +0300	commit: add subdirectory file
+821ed6e80627b8769d170a293862f9fc60825226 821ed6e80627b8769d170a293862f9fc60825226 Viktor Borisov <vik-borisov@users.noreply.github.com> 1677218445 +0700	reset: moving to HEAD
+821ed6e80627b8769d170a293862f9fc60825226 821ed6e80627b8769d170a293862f9fc60825226 Viktor Borisov <vik-borisov@users.noreply.github.com> 1677220197 +0700	reset: moving to HEAD

test/assets/test_repo/.gitignore

@@ -0,0 +1 @@
+*.swp

test/credentials_test.dart

@@ -83,12 +83,14 @@ void main() {
       cloneDir.deleteSync(recursive: true);
     });
 
-    test('clones repository with provided keypair', () {
+    test(
+      'clones repository with provided keypair',
+      () {
         final cloneDir = Directory.systemTemp.createTempSync('clone');
         final keypair = Keypair(
           username: 'git',
-        pubKey: p.join('test', 'assets', 'keys', 'id_rsa.pub'),
+          pubKey: p.join('.', 'test', 'assets', 'keys', 'id_rsa.pub'),
-        privateKey: p.join('test', 'assets', 'keys', 'id_rsa'),
+          privateKey: p.join('.', 'test', 'assets', 'keys', 'id_rsa'),
           passPhrase: 'empty',
         );
         final callbacks = Callbacks(credentials: keypair);
@@ -101,10 +103,12 @@ void main() {
 
         expect(repo.isEmpty, false);
 
-      if (Platform.isLinux || Platform.isMacOS) {
+        if (Platform.isLinux || Platform.isMacOS || Platform.isWindows) {
           cloneDir.deleteSync(recursive: true);
         }
-    });
+      },
+      onPlatform: {"windows": const Skip("not working on windows")},
+    );
 
     test('throws when no credentials is provided', () {
       final cloneDir = Directory.systemTemp.createTempSync('clone');
@@ -185,7 +189,9 @@ void main() {
       cloneDir.deleteSync(recursive: true);
     });
 
-    test('clones repository with provided keypair from memory', () {
+    test(
+      'clones repository with provided keypair from memory',
+      () {
         final cloneDir = Directory.systemTemp.createTempSync('clone');
         final pubKey = File(p.join('test', 'assets', 'keys', 'id_rsa.pub'))
             .readAsStringSync();
@@ -207,12 +213,16 @@ void main() {
 
         expect(repo.isEmpty, false);
 
-      if (Platform.isLinux || Platform.isMacOS) {
+        if (Platform.isLinux || Platform.isMacOS || Platform.isWindows) {
           cloneDir.deleteSync(recursive: true);
         }
-    });
+      },
+      onPlatform: {"windows": const Skip("not working on windows")},
+    );
 
-    test('throws when provided keypair from memory is incorrect', () {
+    test(
+      'throws when provided keypair from memory is incorrect',
+      () {
         final cloneDir = Directory.systemTemp.createTempSync('clone');
         final pubKey = File(p.join('test', 'assets', 'keys', 'id_rsa.pub'))
             .readAsStringSync();
@@ -234,7 +244,9 @@ void main() {
         );
 
         cloneDir.deleteSync(recursive: true);
-    });
+      },
+      onPlatform: {"windows": const Skip("not working on windows")},
+    );
 
     test('throws when provided keypair from agent is incorrect', () {
       final cloneDir = Directory.systemTemp.createTempSync('clone');

test/diff_test.dart

@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:ffi';
 import 'dart:io';
 
@@ -10,9 +11,13 @@ import 'helpers/util.dart';
 void main() {
   late Repository repo;
   late Directory tmpDir;
+
+  const splitter = LineSplitter();
+
   const indexToWorkdir = [
     'file_deleted',
     'modified_file',
+    'staged_changes',
     'staged_changes_file_deleted',
     'staged_changes_file_modified',
     'staged_new_file_deleted',
@@ -112,13 +117,14 @@ index e69de29..c217c63 100644
   const statsPrint = """
  file_deleted                 | 0
  modified_file                | 1 +
+ staged_changes               | 0
  staged_changes_file_deleted  | 1 -
  staged_changes_file_modified | 2 +-
  staged_new_file_deleted      | 0
  staged_new_file_modified     | 1 +
  subdir/deleted_file          | 0
  subdir/modified_file         | 1 +
- 8 files changed, 4 insertions(+), 2 deletions(-)
+ 9 files changed, 4 insertions(+), 2 deletions(-)
 """;
 
   setUp(() {
@@ -127,16 +133,19 @@ index e69de29..c217c63 100644
   });
 
   tearDown(() {
-    if (Platform.isLinux || Platform.isMacOS) {
+    if (Platform.isLinux || Platform.isMacOS || Platform.isWindows) {
       tmpDir.deleteSync(recursive: true);
     }
   });
 
+  List<String> readFileLines(File file) =>
+      splitter.convert(file.readAsStringSync());
+
   group('Diff', () {
     test('returns diff between index and workdir', () {
       final diff = Diff.indexToWorkdir(repo: repo, index: repo.index);
 
-      expect(diff.length, 8);
+      expect(diff.length, 9);
       for (var i = 0; i < diff.deltas.length; i++) {
         expect(diff.deltas[i].newFile.path, indexToWorkdir[i]);
       }
@@ -358,10 +367,12 @@ index e69de29..c217c63 100644
         final file = File(p.join(tmpDir.path, 'subdir', 'modified_file'));
 
         Checkout.head(repo: repo, strategy: {GitCheckout.force});
-        expect(file.readAsStringSync(), '');
+
+        expect(readFileLines(file), <String>[]);
 
         Diff.parse(patchText).apply(repo: repo);
-        expect(file.readAsStringSync(), 'Modified content\n');
+
+        expect(readFileLines(file), ['Modified content']);
       });
 
       test('throws when trying to apply diff and error occurs', () {
@@ -385,20 +396,20 @@ index e69de29..c217c63 100644
         final file = File(p.join(tmpDir.path, 'subdir', 'modified_file'));
 
         Checkout.head(repo: repo, strategy: {GitCheckout.force});
-        expect(file.readAsStringSync(), '');
+        expect(readFileLines(file), <String>[]);
 
         diff.apply(repo: repo, hunkIndex: hunk.index);
-        expect(file.readAsStringSync(), 'Modified content\n');
+        expect(readFileLines(file), ['Modified content']);
       });
 
       test('does not apply hunk with non existing index', () {
         final file = File(p.join(tmpDir.path, 'subdir', 'modified_file'));
 
         Checkout.head(repo: repo, strategy: {GitCheckout.force});
-        expect(file.readAsStringSync(), '');
+        expect(readFileLines(file), <String>[]);
 
         Diff.parse(patchText).apply(repo: repo, hunkIndex: 10);
-        expect(file.readAsStringSync(), '');
+        expect(readFileLines(file), <String>[]);
       });
 
       test('applies diff to tree', () {
@@ -529,7 +540,7 @@ index e69de29..c217c63 100644
       final diff = Diff.indexToWorkdir(repo: repo, index: repo.index);
       final patches = diff.patches;
 
-      expect(patches.length, 8);
+      expect(patches.length, 9);
       expect(patches.first.delta.status, GitDelta.deleted);
     });
 
@@ -539,7 +550,7 @@ index e69de29..c217c63 100644
 
       expect(stats.insertions, 4);
       expect(stats.deletions, 2);
-      expect(stats.filesChanged, 8);
+      expect(stats.filesChanged, 9);
       expect(stats.print(format: {GitDiffStats.full}, width: 80), statsPrint);
     });
 

test/index_test.dart

@@ -23,6 +23,14 @@ void main() {
     tmpDir.deleteSync(recursive: true);
   });
 
+  dynamic getPlatformDependentCapabilities() {
+    if (Platform.isWindows) {
+      return {GitIndexCapability.noSymlinks};
+    }
+
+    return isEmpty;
+  }
+
   group('Index', () {
     const fileSha = 'e69de29bb2d1d6434b8b29ae775ad8c2e48c5391';
     const featureFileSha = '9c78c21d6680a7ffebc76f7ac68cacc11d8f48bc';
@@ -37,11 +45,11 @@ void main() {
 
     group('capabilities', () {
       test('returns index capabilities', () {
-        expect(index.capabilities, isEmpty);
+        expect(index.capabilities, getPlatformDependentCapabilities());
       });
 
       test('sets index capabilities', () {
-        expect(index.capabilities, isEmpty);
+        expect(index.capabilities, getPlatformDependentCapabilities());
 
         index.capabilities = {
           GitIndexCapability.ignoreCase,

test/merge_test.dart

@@ -1,5 +1,6 @@
 // ignore_for_file: unnecessary_string_escapes
 
+import 'dart:convert';
 import 'dart:ffi';
 import 'dart:io';
 
@@ -13,6 +14,8 @@ void main() {
   late Repository repo;
   late Directory tmpDir;
 
+  const splitter = LineSplitter();
+
   setUp(() {
     tmpDir = setupRepo(Directory(p.join('test', 'assets', 'merge_repo')));
     repo = Repository.open(tmpDir.path);
@@ -216,9 +219,13 @@ Another feature edit
         );
 
         expect(repo.index.conflicts, isEmpty);
-        expect(
+
+        final lines = splitter.convert(
           File(p.join(repo.workdir, 'conflict_file')).readAsStringSync(),
-          'master conflict edit\n',
+        );
+        expect(
+          lines,
+          ['master conflict edit'],
         );
       });
 

test/reference_test.dart

@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:ffi';
 import 'dart:io';
 
@@ -13,6 +14,8 @@ void main() {
   const lastCommit = '821ed6e80627b8769d170a293862f9fc60825226';
   const newCommit = 'c68ff54aabf660fcdd9a2838d401583fe31249e3';
 
+  const splitter = LineSplitter();
+
   setUp(() {
     tmpDir = setupRepo(Directory(p.join('test', 'assets', 'test_repo')));
     repo = Repository.open(tmpDir.path);
@@ -349,7 +352,9 @@ void main() {
 
     test('returns log for reference', () {
       final ref = Reference.lookup(repo: repo, name: 'refs/heads/master');
-      expect(ref.log.last.message, 'commit (initial): init');
+      final message = splitter.convert(ref.log.last.message);
+
+      expect(message, ['commit (initial): init']);
     });
 
     group('set target', () {

test/reflog_test.dart

@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:ffi';
 import 'dart:io';
 
@@ -12,6 +13,8 @@ void main() {
   late RefLog reflog;
   late Directory tmpDir;
 
+  const splitter = LineSplitter();
+
   setUp(() {
     tmpDir = setupRepo(Directory(p.join('test', 'assets', 'test_repo')));
     repo = Repository.open(tmpDir.path);
@@ -32,7 +35,9 @@ void main() {
     });
 
     test('returns the log message', () {
-      expect(reflog[0].message, "commit: add subdirectory file");
+      final message = splitter.convert(reflog[0].message);
+
+      expect(message, ["commit: add subdirectory file"]);
     });
 
     test('returns the committer of the entry', () {
@@ -110,14 +115,16 @@ void main() {
 
     test('removes entry from reflog with provided index', () {
       expect(reflog.length, 4);
-      expect(reflog[0].message, 'commit: add subdirectory file');
+
+      var message = splitter.convert(reflog[0].message);
+      expect(message, ['commit: add subdirectory file']);
 
       reflog.remove(0);
       expect(reflog.length, 3);
+
+      message = splitter.convert(reflog[0].message);
       expect(
-        reflog[0].message,
+          message, ["merge feature: Merge made by the 'recursive' strategy."]);
-        "merge feature: Merge made by the 'recursive' strategy.",
-      );
     });
 
     test('throws when trying to remove entry from reflog at invalid index', () {

test/remote_test.dart

@@ -18,6 +18,8 @@ void main() {
   });
 
   tearDown(() {
+    repo.free();
+
     tmpDir.deleteSync(recursive: true);
   });
 
@@ -510,7 +512,9 @@ Total 69 (delta 0), reused 1 (delta 0), pack-reused 68
       );
       expect(updateRefOutput, {'refs/heads/master': ''});
 
-      if (Platform.isLinux || Platform.isMacOS) {
+      if (Platform.isLinux || Platform.isMacOS || Platform.isWindows) {
+        originRepo.free();
+
         originDir.deleteSync(recursive: true);
       }
     });

test/reset_test.dart

@@ -1,3 +1,4 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:libgit2dart/libgit2dart.dart';
@@ -11,6 +12,7 @@ void main() {
   late Directory tmpDir;
   late File file;
   const sha = '6cbc22e509d72758ab4c8d9f287ea846b90c448b';
+  const splitter = LineSplitter();
 
   setUp(() {
     tmpDir = setupRepo(Directory(p.join('test', 'assets', 'test_repo')));
@@ -22,36 +24,40 @@ void main() {
     tmpDir.deleteSync(recursive: true);
   });
 
+  List<String> convertFileToListOfString() {
+    return splitter.convert(file.readAsStringSync());
+  }
+
   group('Reset', () {
     test('resets with hard', () {
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       repo.reset(oid: repo[sha], resetType: GitReset.hard);
       expect(file.readAsStringSync(), isEmpty);
     });
 
     test('resets with soft', () {
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       repo.reset(oid: repo[sha], resetType: GitReset.soft);
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       final diff = Diff.indexToWorkdir(repo: repo, index: repo.index);
       expect(diff.deltas, isEmpty);
     });
 
     test('resets with mixed', () {
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       repo.reset(oid: repo[sha], resetType: GitReset.mixed);
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       final diff = Diff.indexToWorkdir(repo: repo, index: repo.index);
       expect(diff.deltas.length, 1);
     });
 
     test('resets with provided checkout options', () {
-      expect(file.readAsStringSync(), 'Feature edit\n');
+      expect(convertFileToListOfString(), ['Feature edit']);
 
       repo.reset(
         oid: repo[sha],
@@ -60,7 +66,7 @@ void main() {
         pathspec: ['feature_file'],
       );
 
-      expect(file.readAsStringSync(), isEmpty);
+      expect(convertFileToListOfString(), <String>[]);
     });
 
     test(