diff --git a/tests/.gitignore b/tests/test_metrics/.gitignore similarity index 100% rename from tests/.gitignore rename to tests/test_metrics/.gitignore diff --git a/tests/test_metrics/__init__.py b/tests/test_metrics/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/tests/create_sample_data_and_reference_results.py b/tests/test_metrics/create_sample_data_and_reference_results.py similarity index 100% rename from tests/create_sample_data_and_reference_results.py rename to tests/test_metrics/create_sample_data_and_reference_results.py diff --git a/tests/test_input_checks.py b/tests/test_metrics/test_input_checks.py similarity index 100% rename from tests/test_input_checks.py rename to tests/test_metrics/test_input_checks.py diff --git a/tests/test_interface.py b/tests/test_metrics/test_interface.py similarity index 100% rename from tests/test_interface.py rename to tests/test_metrics/test_interface.py diff --git a/tests/test_stats.py b/tests/test_metrics/test_stats.py similarity index 100% rename from tests/test_stats.py rename to tests/test_metrics/test_stats.py diff --git a/tests/test_toarstats.py b/tests/test_metrics/test_toarstats.py similarity index 100% rename from tests/test_toarstats.py rename to tests/test_metrics/test_toarstats.py diff --git a/tests/time_series.csv b/tests/test_metrics/time_series.csv similarity index 100% rename from tests/time_series.csv rename to tests/test_metrics/time_series.csv