Graft pcb-tools upstream onto gerbonara tree

1 files changed, 151 insertions, 0 deletions

diff --git a/gerber/tests/test_cam.py b/gerber/tests/test_cam.py
new file mode 100644
index 0000000..8a71a32
--- /dev/null
+++ b/gerber/tests/test_cam.py
@@ -0,0 +1,151 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+import pytest
+
+from ..cam import CamFile, FileSettings
+
+
+def test_filesettings_defaults():
+    """ Test FileSettings default values
+    """
+    fs = FileSettings()
+    assert fs.format == (2, 5)
+    assert fs.notation == "absolute"
+    assert fs.zero_suppression == "trailing"
+    assert fs.units == "inch"
+
+
+def test_filesettings_dict():
+    """ Test FileSettings Dict
+    """
+    fs = FileSettings()
+    assert fs["format"] == (2, 5)
+    assert fs["notation"] == "absolute"
+    assert fs["zero_suppression"] == "trailing"
+    assert fs["units"] == "inch"
+
+
+def test_filesettings_assign():
+    """ Test FileSettings attribute assignment
+    """
+    fs = FileSettings()
+    fs.units = "test1"
+    fs.notation = "test2"
+    fs.zero_suppression = "test3"
+    fs.format = "test4"
+    assert fs.units == "test1"
+    assert fs.notation == "test2"
+    assert fs.zero_suppression == "test3"
+    assert fs.format == "test4"
+
+
+def test_filesettings_dict_assign():
+    """ Test FileSettings dict-style attribute assignment
+    """
+    fs = FileSettings()
+    fs["units"] = "metric"
+    fs["notation"] = "incremental"
+    fs["zero_suppression"] = "leading"
+    fs["format"] = (1, 2)
+    assert fs.units == "metric"
+    assert fs.notation == "incremental"
+    assert fs.zero_suppression == "leading"
+    assert fs.format == (1, 2)
+
+
+def test_camfile_init():
+    """ Smoke test CamFile test
+    """
+    cf = CamFile()
+
+
+def test_camfile_settings():
+    """ Test CamFile Default Settings
+    """
+    cf = CamFile()
+    assert cf.settings == FileSettings()
+
+
+def test_bounds_override_smoketest():
+    cf = CamFile()
+    cf.bounds
+
+
+def test_zeros():
+    """ Test zero/zero_suppression interaction
+    """
+    fs = FileSettings()
+    assert fs.zero_suppression == "trailing"
+    assert fs.zeros == "leading"
+
+    fs["zero_suppression"] = "leading"
+    assert fs.zero_suppression == "leading"
+    assert fs.zeros == "trailing"
+
+    fs.zero_suppression = "trailing"
+    assert fs.zero_suppression == "trailing"
+    assert fs.zeros == "leading"
+
+    fs["zeros"] = "trailing"
+    assert fs.zeros == "trailing"
+    assert fs.zero_suppression == "leading"
+
+    fs.zeros = "leading"
+    assert fs.zeros == "leading"
+    assert fs.zero_suppression == "trailing"
+
+    fs = FileSettings(zeros="leading")
+    assert fs.zeros == "leading"
+    assert fs.zero_suppression == "trailing"
+
+    fs = FileSettings(zero_suppression="leading")
+    assert fs.zeros == "trailing"
+    assert fs.zero_suppression == "leading"
+
+    fs = FileSettings(zeros="leading", zero_suppression="trailing")
+    assert fs.zeros == "leading"
+    assert fs.zero_suppression == "trailing"
+
+    fs = FileSettings(zeros="trailing", zero_suppression="leading")
+    assert fs.zeros == "trailing"
+    assert fs.zero_suppression == "leading"
+
+
+def test_filesettings_validation():
+    """ Test FileSettings constructor argument validation
+    """
+    # absolute-ish is not a valid notation
+    pytest.raises(ValueError, FileSettings, "absolute-ish", "inch", None, (2, 5), None)
+
+    # degrees kelvin isn't a valid unit for a CAM file
+    pytest.raises(
+        ValueError, FileSettings, "absolute", "degrees kelvin", None, (2, 5), None
+    )
+
+    pytest.raises(
+        ValueError, FileSettings, "absolute", "inch", "leading", (2, 5), "leading"
+    )
+
+    # Technnically this should be an error, but Eangle files often do this incorrectly so we
+    # allow it
+    # pytest.raises(ValueError, FileSettings, 'absolute',
+    #              'inch', 'following', (2, 5), None)
+
+    pytest.raises(
+        ValueError, FileSettings, "absolute", "inch", None, (2, 5), "following"
+    )
+    pytest.raises(ValueError, FileSettings, "absolute", "inch", None, (2, 5, 6), None)
+
+
+def test_key_validation():
+    fs = FileSettings()
+    pytest.raises(KeyError, fs.__getitem__, "octopus")
+    pytest.raises(KeyError, fs.__setitem__, "octopus", "do not care")
+    pytest.raises(ValueError, fs.__setitem__, "notation", "absolute-ish")
+    pytest.raises(ValueError, fs.__setitem__, "units", "degrees kelvin")
+    pytest.raises(ValueError, fs.__setitem__, "zero_suppression", "following")
+    pytest.raises(ValueError, fs.__setitem__, "zeros", "following")
+    pytest.raises(ValueError, fs.__setitem__, "format", (2, 5, 6))