tests update

8 files changed, 173 insertions, 11 deletions

diff --git a/gerber/__init__.py b/gerber/__init__.py
index 089d7b6..e31bd6f 100644
--- a/gerber/__init__.py
+++ b/gerber/__init__.py
@@ -18,6 +18,17 @@
 
 def read(filename):
     """ Read a gerber or excellon file and return a representative object.
+
+    Parameters
+    ----------
+    filename : string
+        Filename of the file to read.
+
+    Returns
+    -------
+    file : CncFile subclass
+        CncFile object representing the file, either GerberFile or
+        ExcellonFile. Returns None if file is not an Excellon or Gerber file.
     """
     import gerber
     import excellon
diff --git a/gerber/cnc.py b/gerber/cnc.py
index a7f3b85..aaa1a42 100644
--- a/gerber/cnc.py
+++ b/gerber/cnc.py
@@ -29,7 +29,7 @@ class FileSettings(object):
     Provides a common representation of gerber/excellon file settings
     """
     def __init__(self, notation='absolute', units='inch',
-                 zero_suppression='trailing', format=(2,5)):
+                 zero_suppression='trailing', format=(2, 5)):
         if notation not in ['absolute', 'incremental']:
             raise ValueError('Notation must be either absolute or incremental')
         self.notation = notation
@@ -43,7 +43,7 @@ class FileSettings(object):
                              trailling')
         self.zero_suppression = zero_suppression
 
-         if len(format) != 2:
+        if len(format) != 2:
             raise ValueError('Format must be a tuple(n=2) of integers')
         self.format = format
 
@@ -52,13 +52,14 @@ class FileSettings(object):
             return self.notation
         elif key == 'units':
             return self.units
-        elif key =='zero_suppression':
+        elif key == 'zero_suppression':
             return self.zero_suppression
         elif key == 'format':
             return self.format
         else:
             raise KeyError()
 
+
 class CncFile(object):
     """ Base class for Gerber/Excellon files.
 
@@ -101,7 +102,7 @@ class CncFile(object):
             self.notation = 'absolute'
             self.units = 'inch'
             self.zero_suppression = 'trailing'
-            self.format = (2,5)
+            self.format = (2, 5)
         self.filename = filename
 
     @property
diff --git a/gerber/render/__init__.py b/gerber/render/__init__.py
index cc87ee0..0d3527b 100644
--- a/gerber/render/__init__.py
+++ b/gerber/render/__init__.py
@@ -24,5 +24,5 @@ SVG is the only supported format.
 """
 
 
-from svg import GerberSvgContext
+from svgwrite_backend import GerberSvgContext
 
diff --git a/gerber/render/svg.py b/gerber/render/svgwrite_backend.py
index 7d5c8fd..7d5c8fd 100644
--- a/gerber/render/svg.py
+++ b/gerber/render/svgwrite_backend.py
diff --git a/gerber/statements.py b/gerber/statements.py
index 418a852..47dbd69 100644
--- a/gerber/statements.py
+++ b/gerber/statements.py
@@ -48,11 +48,6 @@ class FSParamStmt(ParamStmt):
         notation = 'absolute' if stmt_dict.get('notation') == 'A' else 'incremental'
         x = map(int, stmt_dict.get('x').strip())
         format = (x[0], x[1])
-        if notation == 'incremental':
-            print('This file uses incremental notation. To quote the gerber \
-                  file specification:\nIncremental notation is a source of \
-                  endless confusion. Always use absolute notation.\n\nYou \
-                  have been warned')
         return cls(param, zeros, notation, format)
 
     def __init__(self, param, zero_suppression='leading',
@@ -172,7 +167,7 @@ class IPParamStmt(ParamStmt):
         self.ip = ip
 
     def to_gerber(self):
-        ip = 'POS' if self.ip == 'positive' else 'negative'
+        ip = 'POS' if self.ip == 'positive' else 'NEG'
         return '%IP{0}*%'.format(ip)
 
     def __str__(self):
diff --git a/gerber/tests/test_cnc.py b/gerber/tests/test_cnc.py
new file mode 100644
index 0000000..ace047e
--- /dev/null
+++ b/gerber/tests/test_cnc.py
@@ -0,0 +1,50 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+from ..cnc import CncFile, FileSettings
+from tests import *
+
+
+def test_smoke_filesettings():
+    """ Smoke test FileSettings class
+    """
+    fs = FileSettings()
+
+
+def test_filesettings_defaults():
+    """ Test FileSettings default values
+    """
+    fs = FileSettings()
+    assert_equal(fs.format, (2, 5))
+    assert_equal(fs.notation, 'absolute')
+    assert_equal(fs.zero_suppression, 'trailing')
+    assert_equal(fs.units, 'inch')
+
+
+def test_filesettings_dict():
+    """ Test FileSettings Dict
+    """
+    fs = FileSettings()
+    assert_equal(fs['format'], (2, 5))
+    assert_equal(fs['notation'], 'absolute')
+    assert_equal(fs['zero_suppression'], 'trailing')
+    assert_equal(fs['units'], 'inch')
+
+
+def test_filesettings_assign():
+    """ Test FileSettings attribute assignment
+    """
+    fs = FileSettings()
+    fs.units = 'test'
+    fs.notation = 'test'
+    fs.zero_suppression = 'test'
+    fs.format = 'test'
+    assert_equal(fs.units, 'test')
+    assert_equal(fs.notation, 'test')
+    assert_equal(fs.zero_suppression, 'test')
+    assert_equal(fs.format, 'test')
+
+    def test_smoke_cncfile():
+        pass
diff --git a/gerber/tests/test_statements.py b/gerber/tests/test_statements.py
new file mode 100644
index 0000000..47fbb48
--- /dev/null
+++ b/gerber/tests/test_statements.py
@@ -0,0 +1,87 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+from .tests import *
+from ..statements import *
+
+
+def test_FSParamStmt_factory():
+    """ Test FSParamStruct factory correctly handles parameters
+    """
+    stmt = {'param': 'FS', 'zero': 'L', 'notation': 'A', 'x': '27'}
+    fs = FSParamStmt.from_dict(stmt)
+    assert_equal(fs.param, 'FS')
+    assert_equal(fs.zero_suppression, 'leading')
+    assert_equal(fs.notation, 'absolute')
+    assert_equal(fs.format, (2, 7))
+
+    stmt = {'param': 'FS', 'zero': 'T', 'notation': 'I', 'x': '27'}
+    fs = FSParamStmt.from_dict(stmt)
+    assert_equal(fs.param, 'FS')
+    assert_equal(fs.zero_suppression, 'trailing')
+    assert_equal(fs.notation, 'incremental')
+    assert_equal(fs.format, (2, 7))
+
+
+def test_FSParamStmt_dump():
+    """ Test FSParamStmt to_gerber()
+    """
+    stmt = {'param': 'FS', 'zero': 'L', 'notation': 'A', 'x': '27'}
+    fs = FSParamStmt.from_dict(stmt)
+    assert_equal(fs.to_gerber(), '%FSLAX27Y27*%')
+
+    stmt = {'param': 'FS', 'zero': 'T', 'notation': 'I', 'x': '25'}
+    fs = FSParamStmt.from_dict(stmt)
+    assert_equal(fs.to_gerber(), '%FSTIX25Y25*%')
+
+
+def test_MOParamStmt_factory():
+    """ Test MOParamStruct factory correctly handles parameters
+    """
+    stmt = {'param': 'MO', 'mo': 'IN'}
+    mo = MOParamStmt.from_dict(stmt)
+    assert_equal(mo.param, 'MO')
+    assert_equal(mo.mode, 'inch')
+
+    stmt = {'param': 'MO', 'mo': 'MM'}
+    mo = MOParamStmt.from_dict(stmt)
+    assert_equal(mo.param, 'MO')
+    assert_equal(mo.mode, 'metric')
+
+
+def test_MOParamStmt_dump():
+    """ Test MOParamStmt to_gerber()
+    """
+    stmt = {'param': 'MO', 'mo': 'IN'}
+    mo = MOParamStmt.from_dict(stmt)
+    assert_equal(mo.to_gerber(), '%MOIN*%')
+
+    stmt = {'param': 'MO', 'mo': 'MM'}
+    mo = MOParamStmt.from_dict(stmt)
+    assert_equal(mo.to_gerber(), '%MOMM*%')
+
+
+def test_IPParamStmt_factory():
+    """ Test IPParamStruct factory correctly handles parameters
+    """
+    stmt = {'param': 'IP', 'ip': 'POS'}
+    ip = IPParamStmt.from_dict(stmt)
+    assert_equal(ip.ip, 'positive')
+
+    stmt = {'param': 'IP', 'ip': 'NEG'}
+    ip = IPParamStmt.from_dict(stmt)
+    assert_equal(ip.ip, 'negative')
+
+
+def test_IPParamStmt_dump():
+    """ Test IPParamStmt to_gerber()
+    """
+    stmt = {'param': 'IP', 'ip': 'POS'}
+    ip = IPParamStmt.from_dict(stmt)
+    assert_equal(ip.to_gerber(), '%IPPOS*%')
+
+    stmt = {'param': 'IP', 'ip': 'NEG'}
+    ip = IPParamStmt.from_dict(stmt)
+    assert_equal(ip.to_gerber(), '%IPNEG*%')
diff --git a/gerber/tests/tests.py b/gerber/tests/tests.py
new file mode 100644
index 0000000..29b7899
--- /dev/null
+++ b/gerber/tests/tests.py
@@ -0,0 +1,18 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Author: Hamilton Kibbe <ham@hamiltonkib.be>
+
+from nose.tools import assert_in
+from nose.tools import assert_not_in
+from nose.tools import assert_equal
+from nose.tools import assert_not_equal
+from nose.tools import assert_true
+from nose.tools import assert_false
+from nose.tools import assert_raises
+from nose.tools import raises
+from nose import with_setup
+
+__all__ = ['assert_in', 'assert_not_in', 'assert_equal', 'assert_not_equal',
+           'assert_true', 'assert_false', 'assert_raises', 'raises',
+           'with_setup' ]