1 files changed, 65 insertions, 0 deletions
diff --git a/tests/test_utility.py b/tests/test_utility.py
new file mode 100644
index 0000000..4ede8d5
--- /dev/null
+++ b/tests/test_utility.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
+
+import unittest
+
+from gerberex.utility import *
+from math import sqrt
+
+class TestUtility(unittest.TestCase):
+    def test_rotate(self):
+        x0, y0 = (10, 0)
+
+        x1, y1 = rotate(x0, y0, 60, (0, 0))
+        self.assertAlmostEqual(x1, 5)
+        self.assertAlmostEqual(y1, 10 * sqrt(3) / 2)
+
+        x1, y1 = rotate(x0, y0, 180, (5, 0))
+        self.assertAlmostEqual(x1, 0)
+        self.assertAlmostEqual(y1, 0)
+
+        x1, y1 = rotate(x0, y0, -90, (10, 5))
+        self.assertAlmostEqual(x1, 5)
+        self.assertAlmostEqual(y1, 5)
+
+    def test_is_equal_value(self):
+        a = 10.0001
+        b = 10.01
+
+        self.assertTrue(is_equal_value(a, b, 0.1))
+        self.assertTrue(is_equal_value(a, b, 0.01))
+        self.assertFalse(is_equal_value(a, b, 0.001))
+        self.assertFalse(is_equal_value(a, b))
+
+        self.assertTrue(is_equal_value(b, a, 0.1))
+        self.assertTrue(is_equal_value(b, a, 0.01))
+        self.assertFalse(is_equal_value(b, a, 0.001))
+        self.assertFalse(is_equal_value(b, a))
+
+    def test_is_equal_point(self):
+        p0 = (10.01, 5.001)
+        p1 = (10.0001, 5)
+        self.assertTrue(is_equal_point(p0, p1, 0.1))
+        self.assertTrue(is_equal_point(p0, p1, 0.01))
+        self.assertFalse(is_equal_point(p0, p1, 0.001))
+        self.assertFalse(is_equal_point(p0, p1))
+        self.assertTrue(is_equal_point(p1, p0, 0.1))
+        self.assertTrue(is_equal_point(p1, p0, 0.01))
+        self.assertFalse(is_equal_point(p1, p0, 0.001))
+        self.assertFalse(is_equal_point(p1, p0))
+
+        p0 = (5.001, 10.01)
+        p1 = (5, 10.0001)
+        self.assertTrue(is_equal_point(p0, p1, 0.1))
+        self.assertTrue(is_equal_point(p0, p1, 0.01))
+        self.assertFalse(is_equal_point(p0, p1, 0.001))
+        self.assertFalse(is_equal_point(p0, p1))
+        self.assertTrue(is_equal_point(p1, p0, 0.1))
+        self.assertTrue(is_equal_point(p1, p0, 0.01))
+        self.assertFalse(is_equal_point(p1, p0, 0.001))
+        self.assertFalse(is_equal_point(p1, p0))
+
+if __name__ == '__main__':
+    unittest.main()