1 files changed, 38 insertions, 0 deletions
diff --git a/gerber/tests/test_common.py b/gerber/tests/test_common.py
new file mode 100644
index 0000000..a6b1264
--- /dev/null
+++ b/gerber/tests/test_common.py
@@ -0,0 +1,38 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+from ..exceptions import ParseError
+from ..common import read, loads
+from ..excellon import ExcellonFile
+from ..rs274x import GerberFile
+import os
+import pytest
+
+
+NCDRILL_FILE = os.path.join(os.path.dirname(__file__), "resources/ncdrill.DRD")
+TOP_COPPER_FILE = os.path.join(os.path.dirname(__file__), "resources/top_copper.GTL")
+
+
+def test_file_type_detection():
+    """ Test file type detection
+    """
+    ncdrill = read(NCDRILL_FILE)
+    top_copper = read(TOP_COPPER_FILE)
+    assert isinstance(ncdrill, ExcellonFile)
+    assert isinstance(top_copper, GerberFile)
+
+
+def test_load_from_string():
+    with open(NCDRILL_FILE, "rU") as f:
+        ncdrill = loads(f.read())
+    with open(TOP_COPPER_FILE, "rU") as f:
+        top_copper = loads(f.read())
+    assert isinstance(ncdrill, ExcellonFile)
+    assert isinstance(top_copper, GerberFile)
+
+
+def test_file_type_validation():
+    """ Test file format validation
+    """
+    pytest.raises(ParseError, read, __file__)