From 1f8ddaddfdce30c3b1dfd2a5ab2a80fb2a0c2eee Mon Sep 17 00:00:00 2001
From: James Godfrey-Kittle <jamesgk@google.com>
Date: Tue, 29 Sep 2015 18:09:59 -0700
Subject: Move exhaustive tests to common_tests

---
 scripts/common_tests.py | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

(limited to 'scripts/common_tests.py')

diff --git a/scripts/common_tests.py b/scripts/common_tests.py
index e92e1c8..9c9eef5 100644
--- a/scripts/common_tests.py
+++ b/scripts/common_tests.py
@@ -24,6 +24,7 @@ from fontTools import ttLib
 from nototools import coverage
 from nototools import font_data
 from nototools import noto_fonts
+from nototools import unicode_data
 
 import freetype
 
@@ -505,3 +506,76 @@ class TestGlyphAreas(unittest.TestCase):
                 else:
                     msg = name + " has changed, but should not have."
                 self.assertEqual(unchanged, name in self.unchanged, msg)
+
+
+class TestSpacingMarks(FontTest):
+    """Tests that spacing marks are indeed spacing."""
+
+    def setUp(self):
+        self.font_files, _ = self.loaded_fonts
+        charset = coverage.character_set(self.font_files[0])
+        self.marks_to_test = [char for char in charset
+                              if unicode_data.category(char) in ['Lm', 'Sk']]
+        self.advance_cache = {}
+
+    def test_individual_spacing_marks(self):
+        """Tests that spacing marks are spacing by themselves."""
+        for font in self.font_files:
+            print 'Testing %s for stand-alone spacing marks...' % font
+            for mark in self.marks_to_test:
+                mark = unichr(mark)
+                advances = layout.get_advances(mark, font)
+                assert len(advances) == 1
+                self.assertNotEqual(advances[0], 0)
+
+    def test_spacing_marks_in_combination(self):
+        """Tests that spacing marks do not combine with base letters."""
+        for font in self.font_files:
+            print 'Testing %s for spacing marks in combination...' % font
+            for base_letter in (u'A\u00C6BCDEFGHIJKLMNO\u00D8\u01A0PRST'
+                                u'U\u01AFVWXYZ'
+                                u'a\u00E6bcdefghi\u0131j\u0237klmn'
+                                u'o\u00F8\u01A1prs\u017Ftu\u01B0vwxyz'
+                                u'\u03D2'):
+                print 'Testing %s combinations' % base_letter
+                for mark in self.marks_to_test:
+                    if mark == 0x02DE:
+                        # Skip rhotic hook, as it's perhaps OK for it to form
+                        # ligatures
+                        continue
+                    mark = unichr(mark)
+                    advances = layout.get_advances(base_letter + mark, font)
+                    self.assertEqual(len(advances), 2,
+                        'The sequence <%04X, %04X> combines, '
+                        'but it should not' % (ord(base_letter), ord(mark)))
+
+
+class TestSoftDottedChars(FontTest):
+    """Tests that soft-dotted characters lose their dots."""
+
+    def setUp(self):
+        self.font_files, _ = self.loaded_fonts
+        charset = coverage.character_set(self.font_files[0])
+        self.marks_to_test = [char for char in charset
+                              if unicode_data.combining(char) == 230]
+        self.advance_cache = {}
+
+    def test_combinations(self):
+        """Tests that soft-dotted characters lose their dots when combined."""
+
+        for font in self.font_files:
+            print 'Testing %s for soft-dotted combinations...' % font
+
+            # TODO: replace the following list with actual derivation based on
+            # Unicode's soft-dotted property
+            for base_letter in (u'ij\u012F\u0249\u0268\u029D\u02B2\u03F3\u0456'
+                                u'\u0458\u1D62\u1D96\u1DA4\u1DA8\u1E2D\u1ECB'
+                                u'\u2071\u2C7C'):
+                print 'Testing %s combinations' % base_letter.encode('UTF-8')
+                for mark in self.marks_to_test:
+                    mark = unichr(mark)
+                    letter_only = layout.get_glyphs(base_letter, font)
+                    combination = layout.get_glyphs(base_letter + mark, font)
+                    self.assertNotEqual(combination[0], letter_only[0],
+                        "The sequence <%04X, %04X> doesn't lose its dot, "
+                        "but it should" % (ord(base_letter), ord(mark)))
-- 
cgit v1.2.3