Migrate to pytest (#111)

* Migrate to pytest

All tests were update to use pytest.

Tests were alse black formatted. Eventually all code
will be black formatted but need to merge some PRs first.

1 files changed, 103 insertions, 65 deletions

diff --git a/gerber/tests/test_utils.py b/gerber/tests/test_utils.py
index 35f6f47..68484d1 100644
--- a/gerber/tests/test_utils.py
+++ b/gerber/tests/test_utils.py
@@ -3,7 +3,7 @@
 
 # Author: Hamilton Kibbe <ham@hamiltonkib.be>
 
-from .tests import assert_equal, assert_raises
+import pytest
 from ..utils import *
 
 
@@ -14,60 +14,99 @@ def test_zero_suppression():
     fmt = (2, 5)
 
     # Test leading zero suppression
-    zero_suppression = 'leading'
-    test_cases = [('1', 0.00001), ('10', 0.0001), ('100', 0.001),
-                  ('1000', 0.01), ('10000', 0.1), ('100000', 1.0),
-                  ('1000000', 10.0), ('-1', -0.00001), ('-10', -0.0001),
-                  ('-100', -0.001), ('-1000', -0.01), ('-10000', -0.1),
-                  ('-100000', -1.0), ('-1000000', -10.0),
-                  ('0', 0.0)]
+    zero_suppression = "leading"
+    test_cases = [
+        ("1", 0.00001),
+        ("10", 0.0001),
+        ("100", 0.001),
+        ("1000", 0.01),
+        ("10000", 0.1),
+        ("100000", 1.0),
+        ("1000000", 10.0),
+        ("-1", -0.00001),
+        ("-10", -0.0001),
+        ("-100", -0.001),
+        ("-1000", -0.01),
+        ("-10000", -0.1),
+        ("-100000", -1.0),
+        ("-1000000", -10.0),
+        ("0", 0.0),
+    ]
     for string, value in test_cases:
-        assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
-        assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
+        assert value == parse_gerber_value(string, fmt, zero_suppression)
+        assert string == write_gerber_value(value, fmt, zero_suppression)
 
     # Test trailing zero suppression
-    zero_suppression = 'trailing'
-    test_cases = [('1', 10.0), ('01', 1.0), ('001', 0.1), ('0001', 0.01),
-                  ('00001', 0.001), ('000001', 0.0001),
-                  ('0000001', 0.00001), ('-1', -10.0), ('-01', -1.0),
-                  ('-001', -0.1), ('-0001', -0.01), ('-00001', -0.001),
-                  ('-000001', -0.0001), ('-0000001', -0.00001),
-                  ('0', 0.0)]
+    zero_suppression = "trailing"
+    test_cases = [
+        ("1", 10.0),
+        ("01", 1.0),
+        ("001", 0.1),
+        ("0001", 0.01),
+        ("00001", 0.001),
+        ("000001", 0.0001),
+        ("0000001", 0.00001),
+        ("-1", -10.0),
+        ("-01", -1.0),
+        ("-001", -0.1),
+        ("-0001", -0.01),
+        ("-00001", -0.001),
+        ("-000001", -0.0001),
+        ("-0000001", -0.00001),
+        ("0", 0.0),
+    ]
     for string, value in test_cases:
-        assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
-        assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
+        assert value == parse_gerber_value(string, fmt, zero_suppression)
+        assert string == write_gerber_value(value, fmt, zero_suppression)
 
-    assert_equal(write_gerber_value(0.000000001, fmt, 'leading'), '0')
-    assert_equal(write_gerber_value(0.000000001, fmt, 'trailing'), '0')
+    assert write_gerber_value(0.000000001, fmt, "leading") == "0"
+    assert write_gerber_value(0.000000001, fmt, "trailing") == "0"
 
 
 def test_format():
     """ Test gerber value parser and writer handle format correctly
     """
-    zero_suppression = 'leading'
-    test_cases = [((2, 7), '1', 0.0000001), ((2, 6), '1', 0.000001),
-                  ((2, 5), '1', 0.00001), ((2, 4), '1', 0.0001),
-                  ((2, 3), '1', 0.001), ((2, 2), '1', 0.01),
-                  ((2, 1), '1', 0.1), ((2, 7), '-1', -0.0000001),
-                  ((2, 6), '-1', -0.000001), ((2, 5), '-1', -0.00001),
-                  ((2, 4), '-1', -0.0001), ((2, 3), '-1', -0.001),
-                  ((2, 2), '-1', -0.01), ((2, 1), '-1', -0.1),
-                  ((2, 6), '0', 0)]
+    zero_suppression = "leading"
+    test_cases = [
+        ((2, 7), "1", 0.0000001),
+        ((2, 6), "1", 0.000001),
+        ((2, 5), "1", 0.00001),
+        ((2, 4), "1", 0.0001),
+        ((2, 3), "1", 0.001),
+        ((2, 2), "1", 0.01),
+        ((2, 1), "1", 0.1),
+        ((2, 7), "-1", -0.0000001),
+        ((2, 6), "-1", -0.000001),
+        ((2, 5), "-1", -0.00001),
+        ((2, 4), "-1", -0.0001),
+        ((2, 3), "-1", -0.001),
+        ((2, 2), "-1", -0.01),
+        ((2, 1), "-1", -0.1),
+        ((2, 6), "0", 0),
+    ]
     for fmt, string, value in test_cases:
-        assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
-        assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
-
-    zero_suppression = 'trailing'
-    test_cases = [((6, 5), '1', 100000.0), ((5, 5), '1', 10000.0),
-                  ((4, 5), '1', 1000.0), ((3, 5), '1', 100.0),
-                  ((2, 5), '1', 10.0), ((1, 5), '1', 1.0),
-                  ((6, 5), '-1', -100000.0), ((5, 5), '-1', -10000.0),
-                  ((4, 5), '-1', -1000.0), ((3, 5), '-1', -100.0),
-                  ((2, 5), '-1', -10.0), ((1, 5), '-1', -1.0),
-                  ((2, 5), '0', 0)]
+        assert value == parse_gerber_value(string, fmt, zero_suppression)
+        assert string == write_gerber_value(value, fmt, zero_suppression)
+
+    zero_suppression = "trailing"
+    test_cases = [
+        ((6, 5), "1", 100000.0),
+        ((5, 5), "1", 10000.0),
+        ((4, 5), "1", 1000.0),
+        ((3, 5), "1", 100.0),
+        ((2, 5), "1", 10.0),
+        ((1, 5), "1", 1.0),
+        ((6, 5), "-1", -100000.0),
+        ((5, 5), "-1", -10000.0),
+        ((4, 5), "-1", -1000.0),
+        ((3, 5), "-1", -100.0),
+        ((2, 5), "-1", -10.0),
+        ((1, 5), "-1", -1.0),
+        ((2, 5), "0", 0),
+    ]
     for fmt, string, value in test_cases:
-        assert_equal(value, parse_gerber_value(string, fmt, zero_suppression))
-        assert_equal(string, write_gerber_value(value, fmt, zero_suppression))
+        assert value == parse_gerber_value(string, fmt, zero_suppression)
+        assert string == write_gerber_value(value, fmt, zero_suppression)
 
 
 def test_decimal_truncation():
@@ -76,54 +115,53 @@ def test_decimal_truncation():
     value = 1.123456789
     for x in range(10):
         result = decimal_string(value, precision=x)
-        calculated = '1.' + ''.join(str(y) for y in range(1, x + 1))
-        assert_equal(result, calculated)
+        calculated = "1." + "".join(str(y) for y in range(1, x + 1))
+        assert result == calculated
 
 
 def test_decimal_padding():
     """ Test decimal_string padding
     """
     value = 1.123
-    assert_equal(decimal_string(value, precision=3, padding=True), '1.123')
-    assert_equal(decimal_string(value, precision=4, padding=True), '1.1230')
-    assert_equal(decimal_string(value, precision=5, padding=True), '1.12300')
-    assert_equal(decimal_string(value, precision=6, padding=True), '1.123000')
-    assert_equal(decimal_string(0, precision=6, padding=True), '0.000000')
+    assert decimal_string(value, precision=3, padding=True) == "1.123"
+    assert decimal_string(value, precision=4, padding=True) == "1.1230"
+    assert decimal_string(value, precision=5, padding=True) == "1.12300"
+    assert decimal_string(value, precision=6, padding=True) == "1.123000"
+    assert decimal_string(0, precision=6, padding=True) == "0.000000"
 
 
 def test_parse_format_validation():
     """ Test parse_gerber_value() format validation
     """
-    assert_raises(ValueError, parse_gerber_value, '00001111', (7, 5))
-    assert_raises(ValueError, parse_gerber_value, '00001111', (5, 8))
-    assert_raises(ValueError, parse_gerber_value, '00001111', (13, 1))
+    pytest.raises(ValueError, parse_gerber_value, "00001111", (7, 5))
+    pytest.raises(ValueError, parse_gerber_value, "00001111", (5, 8))
+    pytest.raises(ValueError, parse_gerber_value, "00001111", (13, 1))
 
 
 def test_write_format_validation():
     """ Test write_gerber_value() format validation
     """
-    assert_raises(ValueError, write_gerber_value, 69.0, (7, 5))
-    assert_raises(ValueError, write_gerber_value, 69.0, (5, 8))
-    assert_raises(ValueError, write_gerber_value, 69.0, (13, 1))
+    pytest.raises(ValueError, write_gerber_value, 69.0, (7, 5))
+    pytest.raises(ValueError, write_gerber_value, 69.0, (5, 8))
+    pytest.raises(ValueError, write_gerber_value, 69.0, (13, 1))
 
 
 def test_detect_format_with_short_file():
     """ Verify file format detection works with short files
     """
-    assert_equal('unknown', detect_file_format('gerber/tests/__init__.py'))
+    assert "unknown" == detect_file_format("gerber/tests/__init__.py")
 
 
 def test_validate_coordinates():
-    assert_raises(TypeError, validate_coordinates, 3)
-    assert_raises(TypeError, validate_coordinates, 3.1)
-    assert_raises(TypeError, validate_coordinates, '14')
-    assert_raises(TypeError, validate_coordinates, (0,))
-    assert_raises(TypeError, validate_coordinates, (0, 1, 2))
-    assert_raises(TypeError, validate_coordinates, (0, 'string'))
+    pytest.raises(TypeError, validate_coordinates, 3)
+    pytest.raises(TypeError, validate_coordinates, 3.1)
+    pytest.raises(TypeError, validate_coordinates, "14")
+    pytest.raises(TypeError, validate_coordinates, (0,))
+    pytest.raises(TypeError, validate_coordinates, (0, 1, 2))
+    pytest.raises(TypeError, validate_coordinates, (0, "string"))
 
 
 def test_convex_hull():
     points = [(0, 0), (1, 0), (1, 1), (0.5, 0.5), (0, 1), (0, 0)]
     expected = [(0, 0), (1, 0), (1, 1), (0, 1), (0, 0)]
-    assert_equal(set(convex_hull(points)), set(expected))
-    
\ No newline at end of file
+    assert set(convex_hull(points)) == set(expected)