From 4eb0e063bcd34c21b737023aa6ed5baed80658d1 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 13 Jun 2021 15:00:17 +0200 Subject: Repo re-org, make gerberex tests run --- gerbonara/gerber/tests/test_utils.py | 167 +++++++++++++++++++++++++++++++++++ 1 file changed, 167 insertions(+) create mode 100644 gerbonara/gerber/tests/test_utils.py (limited to 'gerbonara/gerber/tests/test_utils.py') diff --git a/gerbonara/gerber/tests/test_utils.py b/gerbonara/gerber/tests/test_utils.py new file mode 100644 index 0000000..68484d1 --- /dev/null +++ b/gerbonara/gerber/tests/test_utils.py @@ -0,0 +1,167 @@ +#! /usr/bin/env python +# -*- coding: utf-8 -*- + +# Author: Hamilton Kibbe + +import pytest +from ..utils import * + + +def test_zero_suppression(): + """ Test gerber value parser and writer handle zero suppression correctly. + """ + # Default format + 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), + ] + for string, value in test_cases: + 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), + ] + for string, value in test_cases: + assert value == parse_gerber_value(string, fmt, zero_suppression) + assert string == write_gerber_value(value, fmt, zero_suppression) + + 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), + ] + for fmt, string, value in test_cases: + 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 value == parse_gerber_value(string, fmt, zero_suppression) + assert string == write_gerber_value(value, fmt, zero_suppression) + + +def test_decimal_truncation(): + """ Test decimal_string truncates value to the correct precision + """ + 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 result == calculated + + +def test_decimal_padding(): + """ Test decimal_string padding + """ + value = 1.123 + 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 + """ + 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 + """ + 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 "unknown" == detect_file_format("gerber/tests/__init__.py") + + +def test_validate_coordinates(): + 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 set(convex_hull(points)) == set(expected) -- cgit