test: disable repository owner verification for tests (#47)

lib/src/bindings/libgit2_bindings.dart

@@ -2480,17 +2480,39 @@ class Libgit2 {
   /// @return 0 on success, <0 on failure
   int git_libgit2_opts(
     int option,
+    ffi.Pointer<ffi.Int8> out,
   ) {
     return _git_libgit2_opts(
       option,
+      out,
     );
   }
 
-  late final _git_libgit2_optsPtr =
-      _lookup<ffi.NativeFunction<ffi.Int32 Function(ffi.Int32)>>(
+  late final _git_libgit2_optsPtr = _lookup<
+      ffi.NativeFunction<
+          ffi.Int32 Function(
+              ffi.Int32, ffi.Pointer<ffi.Int8>)>>('git_libgit2_opts');
+  late final _git_libgit2_opts = _git_libgit2_optsPtr
+      .asFunction<int Function(int, ffi.Pointer<ffi.Int8>)>();
+
+  /// Set a library global option.
+  ///
+  /// Look at [git_libgit2_opts]
+  int git_libgit2_opts_set(
+    int option,
+    int value,
+  ) {
+    return _git_libgit2_opts_set(
+      option,
+      value,
+    );
+  }
+
+  late final _git_libgit2_opts_setPtr =
+      _lookup<ffi.NativeFunction<ffi.Int32 Function(ffi.Int32, ffi.Int32)>>(
           'git_libgit2_opts');
-  late final _git_libgit2_opts =
-      _git_libgit2_optsPtr.asFunction<int Function(int)>();
+  late final _git_libgit2_opts_set =
+      _git_libgit2_opts_setPtr.asFunction<int Function(int, int)>();
 
   /// Free the memory referred to by the git_buf.
   ///

lib/src/libgit2.dart

@@ -2,6 +2,7 @@ import 'dart:ffi';
 
 import 'package:ffi/ffi.dart';
 import 'package:libgit2dart/libgit2dart.dart';
+import 'package:libgit2dart/src/bindings/libgit2_bindings.dart';
 import 'package:libgit2dart/src/util.dart';
 
 class Libgit2 {
@@ -33,4 +34,25 @@ class Libgit2 {
         .where((e) => featuresInt & e.value == e.value)
         .toSet();
   }
+
+  /// Returns owner validation setting for repository directories.
+  static bool get ownerValidation {
+    libgit2.git_libgit2_init();
+    final out = calloc<Int8>();
+    libgit2.git_libgit2_opts(
+      git_libgit2_opt_t.GIT_OPT_GET_OWNER_VALIDATION,
+      out,
+    );
+    return out.value == 1 || false;
+  }
+
+  /// Sets owner validation setting for repository directories.
+  static set ownerValidation(bool value) {
+    libgit2.git_libgit2_init();
+    final valueC = value ? 1 : 0;
+    libgit2.git_libgit2_opts_set(
+      git_libgit2_opt_t.GIT_OPT_SET_OWNER_VALIDATION,
+      valueC,
+    );
+  }
 }

test/helpers/util.dart

@@ -1,7 +1,9 @@
 import 'dart:io';
+import 'package:libgit2dart/libgit2dart.dart';
 import 'package:path/path.dart' as p;
 
 Directory setupRepo(Directory repoDir) {
+  Libgit2.ownerValidation = false;
   final tmpDir = Directory.systemTemp.createTempSync('testrepo');
   copyRepo(from: repoDir, to: tmpDir);
   return tmpDir;

test/libgit2_test.dart

@@ -14,5 +14,16 @@ void main() {
         {GitFeature.threads, GitFeature.https, GitFeature.ssh, GitFeature.nsec},
       );
     });
+
+    test(
+        'sets and returns the owner validation setting for repository '
+        'directories', () {
+      final oldValue = Libgit2.ownerValidation;
+      Libgit2.ownerValidation = !oldValue;
+      expect(Libgit2.ownerValidation, equals(!oldValue));
+
+      // Set it back
+      Libgit2.ownerValidation = oldValue;
+    });
   });
 }