Add tests for filesystem constants

tests/test_filesystem_constants.py

@@ -0,0 +1,57 @@
+from premise.filesystem_constants import (
+    DATA_DIR, INVENTORY_DIR, VARIABLES_DIR, IAM_OUTPUT_DIR,
+    DIR_CACHED_DB
+)
+import os
+from pathlib import Path
+
+dd_root = str(DATA_DIR.parent.parent)
+cd_root = str(DIR_CACHED_DB.parent.parent)
+
+
+def test_data_dir():
+    assert isinstance(DATA_DIR, Path)
+    assert DATA_DIR.is_dir()
+    assert len(list(DATA_DIR.iterdir())) > 2
+    for fp in DATA_DIR.iterdir():
+        assert os.access(fp, os.R_OK)
+    assert dd_root not in cd_root and cd_root not in dd_root
+
+
+def test_inventory_dir():
+    assert isinstance(INVENTORY_DIR, Path)
+    assert INVENTORY_DIR.is_dir()
+    for fp in INVENTORY_DIR.iterdir():
+        assert os.access(fp, os.R_OK)
+    assert len(list(INVENTORY_DIR.iterdir())) > 2
+    assert str(DATA_DIR) in str(INVENTORY_DIR)
+
+
+def test_variables_dir():
+    assert isinstance(VARIABLES_DIR, Path)
+    assert VARIABLES_DIR.is_dir()
+    assert len(list(VARIABLES_DIR.iterdir())) > 2
+    for fp in VARIABLES_DIR.iterdir():
+        assert os.access(fp, os.R_OK)
+    assert str(DATA_DIR) not in str(VARIABLES_DIR)
+    assert dd_root in str(VARIABLES_DIR)
+    assert cd_root not in str(VARIABLES_DIR)
+
+
+def test_iam_output_dir():
+    assert isinstance(IAM_OUTPUT_DIR, Path)
+    assert IAM_OUTPUT_DIR.is_dir()
+    for fp in IAM_OUTPUT_DIR.iterdir():
+        assert os.access(fp, os.R_OK)
+    assert len(list(IAM_OUTPUT_DIR.iterdir())) > 2
+    assert str(DATA_DIR) in str(IAM_OUTPUT_DIR)
+
+
+def test_user_data_dir():
+    assert isinstance(DIR_CACHED_DB, Path)
+    assert DIR_CACHED_DB.is_dir()
+    assert os.access(DIR_CACHED_DB, os.W_OK)
+    assert os.access(DIR_CACHED_DB, os.R_OK)
+    assert cd_root in str(DIR_CACHED_DB)
+    assert dd_root not in str(DIR_CACHED_DB)
+    assert "cache" in str(DIR_CACHED_DB)