Add PCB interface

this incorporates some of @chintal's layers.py changes
PCB.from_directory() simplifies loading of multiple gerbers
the PCB() class should be pretty helpful going forward...

the context classes could use some cleaning up, although I'd like to wait until the freecad stuff gets merged, that way we can try to refactor the context base to support more use cases

1 files changed, 33 insertions, 0 deletions

diff --git a/gerber/tests/test_layers.py b/gerber/tests/test_layers.py
new file mode 100644
index 0000000..c77084d
--- /dev/null
+++ b/gerber/tests/test_layers.py
@@ -0,0 +1,33 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+from .tests import *
+from ..layers import guess_layer_class, hints
+
+
+def test_guess_layer_class():
+    """ Test layer type inferred correctly from filename
+    """
+
+    # Add any specific test cases here (filename, layer_class)
+    test_vectors = [(None, 'unknown'), ('NCDRILL.TXT', 'unknown'),
+                    ('example_board.gtl', 'top'),
+                    ('exampmle_board.sst', 'topsilk'),
+                    ('ipc-d-356.ipc', 'ipc_netlist'),]
+
+    for hint in hints:
+        for ext in hint.ext:
+            assert_equal(hint.layer, guess_layer_class('board.{}'.format(ext)))
+        for name in hint.name:
+            assert_equal(hint.layer, guess_layer_class('{}.pho'.format(name)))
+
+    for filename, layer_class in test_vectors:
+        assert_equal(layer_class, guess_layer_class(filename))
+
+
+def test_sort_layers():
+    """ Test layer ordering
+    """
+    pass