DE-211: add publisher test

tests/publisher/test_remove_deleted_publisher.py

@@ -0,0 +1,36 @@
+from carte_cli.publisher.remove_deleted_publisher import RemoveDeletedPublisher
+
+
+def test_get_datasets_to_delete():
+    publisher = RemoveDeletedPublisher()
+    tables_path = "test-tables-path"
+
+    publisher.tables_path = tables_path
+
+    test_datasets = set(
+        [
+            f"db1/dataset1",
+            f"db1/dataset3",
+            f"db1/dataset4",
+            f"db1/dataset5",
+            f"db2/dataset1",
+        ]
+    )
+
+    test_file_paths = [
+        f"{tables_path}/db1/dataset1.md",
+        f"{tables_path}/db2/dataset1.md",
+        f"{tables_path}/db2/dataset2.md",
+        f"{tables_path}/db1/dataset3.md",
+        f"{tables_path}/db1/dataset4.md",
+        f"{tables_path}/db3/dataset1.md",
+    ]
+
+    to_delete = [
+        dataset
+        for dataset in publisher._get_datasets_to_delete(test_datasets, test_file_paths)
+    ]
+
+    assert len(to_delete) == 2
+    assert "test-tables-path/db3/dataset1.md" in to_delete
+    assert "test-tables-path/db2/dataset2.md" in to_delete