add test

tests/func/plots/test_collect.py

@@ -0,0 +1,60 @@
+import pytest
+
+import dpath
+from dvc.repo.plots import Plots
+
+
+def test_plots_definitions_works_with_nested_plots(tmp_dir, scm, dvc):
+    data_v1 = [
+        {"x": 1, "y": 0.1},
+        {"x": 2, "y": 0.2},
+        {"x": 3, "y": 0.3},
+    ]
+    data_subdir_v1 = [
+        {"x": 1, "y": 0.2, "z": 0.1},
+        {"x": 2, "y": 0.3, "z": 0.2},
+        {"x": 3, "y": 0.4, "z": 0.3},
+    ]
+
+    plots_dir = tmp_dir / "plots"
+    subdir = plots_dir / "subdir"
+
+    plots_dir.mkdir()
+    subdir.mkdir()
+
+    (plots_dir / "data_v1.json").dump_json(data_v1)
+    (subdir / "data_subdir_v1.json").dump_json(data_subdir_v1)
+
+    plots_config = [
+        {
+            "plots/subdir/": {
+                "x": "z",
+            }
+        },
+        {
+            "plots": {
+                "x": "x",
+            }
+        },
+    ]
+
+    from dvc.utils.serialize import modify_yaml
+
+    with modify_yaml("dvc.yaml") as dvcfile_content:
+        dvcfile_content["plots"] = plots_config
+
+    scm.add(
+        [
+            "plots/data_v1.json",
+            "plots/subdir/data_subdir_v1.json",
+            "dvc.yaml",
+        ]
+    )
+    scm.commit("add data sources")
+
+    plots = next(Plots(dvc).collect())
+
+    assert dpath.get(plots, "workspace/definitions/data/dvc.yaml/data") == {
+        "plots/data_v1.json": {"x": "x"},
+        "plots/subdir/data_subdir_v1.json": {"x": "z"},
+    }