Test for actual resolved ref in test

Author: sigurdm

test/get/git/tag_pattern_test.dart

@@ -381,7 +381,7 @@ void main() {
   );
 
   test(
-    'Multiple path dependencies to same package work (regression https://github.com/dart-lang/pub/issues/4706)',
+    'multiple path dependencies to same package work (regression https://github.com/dart-lang/pub/issues/4706)',
     () async {
       await d.git('foo.git', [
         d.dir('one', [
@@ -407,7 +407,9 @@ void main() {
         ]),
         d.dir('three', [d.libPubspec('three', '1.0.0', sdk: '^3.9.0')]),
       ]).create();
-      await d.git('foo.git', []).tag('1.0.0');
+      final g = d.git('foo.git', []);
+      await g.tag('1.0.0');
+      final ref = await g.revParse('HEAD');
 
       await d
           .appDir(
@@ -435,6 +437,50 @@ void main() {
         ),
         environment: {'_PUB_TEST_SDK_VERSION': '3.9.0'},
       );
+      final lockfile =
+          loadYaml(
+                File(
+                  p.join(d.sandbox, appPath, 'pubspec.lock'),
+                ).readAsStringSync(),
+              )
+              as Map;
+      final packages = lockfile['packages'] as Map;
+      final one = packages['one'];
+      expect(one, {
+        'dependency': 'direct main',
+        'description': {
+          'path': 'one',
+          'resolved-ref': ref,
+          'tag-pattern': '{{version}}',
+          'url': '../foo.git',
+        },
+        'source': 'git',
+        'version': '1.0.0',
+      });
+      final two = packages['two'];
+      expect(two, {
+        'dependency': 'transitive',
+        'description': {
+          'path': 'two',
+          'resolved-ref': ref,
+          'tag-pattern': '{{version}}',
+          'url': '../foo.git',
+        },
+        'source': 'git',
+        'version': '1.0.0',
+      });
+      final three = packages['three'];
+      expect(three, {
+        'dependency': 'transitive',
+        'description': {
+          'path': 'three',
+          'resolved-ref': ref,
+          'tag-pattern': '{{version}}',
+          'url': '../foo.git',
+        },
+        'source': 'git',
+        'version': '1.0.0',
+      });
     },
   );
 }