exp list: fix ui for tags/branches

tests/func/experiments/test_experiments.py

@@ -362,7 +362,7 @@ def test_list(tmp_dir, scm, dvc, exp_stage):
     exp_c = first(results)
     ref_info_c = first(exp_refs_by_rev(scm, exp_c))
 
-    assert dvc.experiments.ls() == {"master": [(ref_info_c.name, exp_c)]}
+    assert dvc.experiments.ls() == {"refs/heads/master": [(ref_info_c.name, exp_c)]}
 
     exp_list = dvc.experiments.ls(rev=ref_info_a.baseline_sha)
     assert {key: set(val) for key, val in exp_list.items()} == {
@@ -372,20 +372,20 @@ def test_list(tmp_dir, scm, dvc, exp_stage):
     exp_list = dvc.experiments.ls(rev=[baseline_a, scm.get_rev()])
     assert {key: set(val) for key, val in exp_list.items()} == {
         baseline_a: {(ref_info_a.name, exp_a), (ref_info_b.name, exp_b)},
-        "master": {(ref_info_c.name, exp_c)},
+        "refs/heads/master": {(ref_info_c.name, exp_c)},
     }
 
     exp_list = dvc.experiments.ls(all_commits=True)
     assert {key: set(val) for key, val in exp_list.items()} == {
         baseline_a: {(ref_info_a.name, exp_a), (ref_info_b.name, exp_b)},
-        "master": {(ref_info_c.name, exp_c)},
+        "refs/heads/master": {(ref_info_c.name, exp_c)},
     }
 
     scm.checkout("branch", True)
     exp_list = dvc.experiments.ls(all_commits=True)
     assert {key: set(val) for key, val in exp_list.items()} == {
         baseline_a: {(ref_info_a.name, exp_a), (ref_info_b.name, exp_b)},
-        "branch": {(ref_info_c.name, exp_c)},
+        "refs/heads/branch": {(ref_info_c.name, exp_c)},
     }
 
 
@@ -676,7 +676,7 @@ def test_experiment_unchanged(tmp_dir, scm, dvc, exp_stage):
     dvc.experiments.run(exp_stage.addressing)
     dvc.experiments.run(exp_stage.addressing)
 
-    assert len(dvc.experiments.ls()["master"]) == 2
+    assert len(dvc.experiments.ls()["refs/heads/master"]) == 2
 
 
 def test_experiment_run_dry(tmp_dir, scm, dvc, exp_stage):

tests/func/experiments/test_remote.py

@@ -165,7 +165,7 @@ def test_list_remote(tmp_dir, scm, dvc, git_downstream, exp_stage, use_url):
     exp_list = downstream_exp.ls(all_commits=True, git_remote=remote)
     assert {key: set(val) for key, val in exp_list.items()} == {
         baseline_a: {(ref_info_a.name, None), (ref_info_b.name, None)},
-        "master": {(ref_info_c.name, None)},
+        "refs/heads/master": {(ref_info_c.name, None)},
     }
 
 

tests/func/experiments/test_save.py

@@ -71,7 +71,7 @@ def test_exp_save_after_commit(tmp_dir, dvc, scm):
 
     all_exps = dvc.experiments.ls(all_commits=True)
     assert all_exps[baseline][0][0] == "exp-1"
-    assert all_exps["master"][0][0] == "exp-2"
+    assert all_exps["refs/heads/master"][0][0] == "exp-2"
 
 
 def test_exp_save_with_staged_changes(tmp_dir, dvc, scm):

tests/unit/command/test_experiments.py

@@ -198,7 +198,7 @@ def test_experiments_list_format(mocker, capsys, args, expected, dvc, scm):
     mocker.patch(
         "dvc.repo.experiments.ls.ls",
         return_value={
-            "main": [
+            "refs/heads/main": [
                 ("exp-a", "sha-a"),
             ]
         },