Add tests for get_mathvariant (#329)

diff --git a/test/api/test-ot-math.c b/test/api/test-ot-math.c
index 99993e0..4d6f67b 100644 (file)
--- a/test/api/test-ot-math.c
+++ b/test/api/test-ot-math.c
@@ -515,6 +515,165 @@ test_get_glyph_variants (void)
   cleanupFreeType();
 }
 
+static void
+test_get_glyph_assembly (void)
+{
+  hb_codepoint_t glyph;
+  initFreeType();
+
+  openFont("fonts/MathTestFontEmpty.otf");
+  g_assert(hb_font_get_glyph_from_name (hb_font, "space", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_RTL, 0, NULL, NULL, NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_BTT, 0, NULL, NULL, NULL), ==, 0);
+  closeFont();
+
+  openFont("fonts/MathTestFontPartial1.otf");
+  g_assert(hb_font_get_glyph_from_name (hb_font, "space", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_RTL, 0, NULL, NULL, NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_BTT, 0, NULL, NULL, NULL), ==, 0);
+  closeFont();
+
+  openFont("fonts/MathTestFontPartial2.otf");
+  g_assert(hb_font_get_glyph_from_name (hb_font, "space", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_RTL, 0, NULL, NULL, NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_BTT, 0, NULL, NULL, NULL), ==, 0);
+  closeFont();
+
+  openFont("fonts/MathTestFontPartial3.otf");
+  g_assert(hb_font_get_glyph_from_name (hb_font, "space", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_RTL, 0, NULL, NULL, NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_BTT, 0, NULL, NULL, NULL), ==, 0);
+  closeFont();
+
+  openFont("fonts/MathTestFontPartial4.otf");
+  g_assert(hb_font_get_glyph_from_name (hb_font, "space", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_RTL, 0, NULL, NULL, NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font, glyph, HB_DIRECTION_BTT, 0, NULL, NULL, NULL), ==, 0);
+  closeFont();
+
+  openFont("fonts/MathTestFontFull.otf");
+
+  g_assert(hb_font_get_glyph_from_name (hb_font, "arrowright", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font,
+                                                 glyph,
+                                                 HB_DIRECTION_BTT,
+                                                 0,
+                                                 NULL,
+                                                 NULL,
+                                                 NULL), ==, 0);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font,
+                                                 glyph,
+                                                 HB_DIRECTION_RTL,
+                                                 0,
+                                                 NULL,
+                                                 NULL,
+                                                 NULL), ==, 3);
+
+  g_assert(hb_font_get_glyph_from_name (hb_font, "arrowdown", -1, &glyph));
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font,
+                                                 glyph,
+                                                 HB_DIRECTION_BTT,
+                                                 0,
+                                                 NULL,
+                                                 NULL,
+                                                 NULL), ==, 5);
+  g_assert_cmpint(hb_ot_math_get_glyph_assembly (hb_font,
+                                                 glyph,
+                                                 HB_DIRECTION_RTL,
+                                                 0,
+                                                 NULL,
+                                                 NULL,
+                                                 NULL), ==, 0);
+
+  g_assert(hb_font_get_glyph_from_name (hb_font, "arrowright", -1, &glyph));
+  hb_math_glyph_part_t parts[20];
+  unsigned partsSize = sizeof (parts) / sizeof (parts[0]);
+  unsigned int count;
+  unsigned int offset = 0;
+  do {
+    count = partsSize;
+    hb_ot_math_get_glyph_assembly (hb_font,
+                                   glyph,
+                                   HB_DIRECTION_RTL,
+                                   offset,
+                                   &count,
+                                   parts,
+                                   NULL);
+    offset += count;
+  } while (count == partsSize);
+  g_assert_cmpint(offset, ==, 3);
+  g_assert(hb_font_get_glyph_from_name (hb_font, "left", -1, &glyph));
+  g_assert_cmpint(parts[0].glyph, ==, glyph);
+  g_assert_cmpint(parts[0].start_connector_length, ==, 800);
+  g_assert_cmpint(parts[0].end_connector_length, ==, 384);
+  g_assert_cmpint(parts[0].full_advance, ==, 2000);
+  g_assert(!(parts[0].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER));
+  g_assert(hb_font_get_glyph_from_name (hb_font, "horizontal", -1, &glyph));
+  g_assert_cmpint(parts[1].glyph, ==, glyph);
+  g_assert_cmpint(parts[1].start_connector_length, ==, 524);
+  g_assert_cmpint(parts[1].end_connector_length, ==, 800);
+  g_assert_cmpint(parts[1].full_advance, ==, 2000);
+  g_assert(parts[1].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER);
+  g_assert(hb_font_get_glyph_from_name (hb_font, "right", -1, &glyph));
+  g_assert_cmpint(parts[2].glyph, ==, glyph);
+  g_assert_cmpint(parts[2].start_connector_length, ==, 316);
+  g_assert_cmpint(parts[2].end_connector_length, ==, 454);
+  g_assert_cmpint(parts[2].full_advance, ==, 2000);
+  g_assert(!(parts[2].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER));
+
+  g_assert(hb_font_get_glyph_from_name (hb_font, "arrowdown", -1, &glyph));
+  offset = 0;
+  do {
+    count = partsSize;
+    hb_ot_math_get_glyph_assembly (hb_font,
+                                   glyph,
+                                   HB_DIRECTION_BTT,
+                                   offset,
+                                   &count,
+                                   parts,
+                                   NULL);
+    offset += count;
+  } while (count == partsSize);
+  g_assert_cmpint(offset, ==, 5);
+  g_assert(hb_font_get_glyph_from_name (hb_font, "bottom", -1, &glyph));
+  g_assert_cmpint(parts[0].glyph, ==, glyph);
+  g_assert_cmpint(parts[0].start_connector_length, ==, 365);
+  g_assert_cmpint(parts[0].end_connector_length, ==, 158);
+  g_assert_cmpint(parts[0].full_advance, ==, 1000);
+  g_assert(!(parts[0].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER));
+  g_assert(hb_font_get_glyph_from_name (hb_font, "vertical", -1, &glyph));
+  g_assert_cmpint(parts[1].glyph, ==, glyph);
+  g_assert_cmpint(parts[1].glyph, ==, glyph);
+  g_assert_cmpint(parts[1].start_connector_length, ==, 227);
+  g_assert_cmpint(parts[1].end_connector_length, ==, 365);
+  g_assert_cmpint(parts[1].full_advance, ==, 1000);
+  g_assert(parts[1].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER);
+  g_assert(hb_font_get_glyph_from_name (hb_font, "center", -1, &glyph));
+  g_assert_cmpint(parts[2].glyph, ==, glyph);
+  g_assert_cmpint(parts[2].start_connector_length, ==, 54);
+  g_assert_cmpint(parts[2].end_connector_length, ==, 158);
+  g_assert_cmpint(parts[2].full_advance, ==, 1000);
+  g_assert(!(parts[2].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER));
+  g_assert(hb_font_get_glyph_from_name (hb_font, "vertical", -1, &glyph));
+  g_assert_cmpint(parts[3].glyph, ==, glyph);
+  g_assert_cmpint(parts[3].glyph, ==, glyph);
+  g_assert_cmpint(parts[3].glyph, ==, glyph);
+  g_assert_cmpint(parts[3].start_connector_length, ==, 400);
+  g_assert_cmpint(parts[3].end_connector_length, ==, 296);
+  g_assert_cmpint(parts[3].full_advance, ==, 1000);
+  g_assert(parts[1].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER);
+  g_assert(hb_font_get_glyph_from_name (hb_font, "top", -1, &glyph));
+  g_assert_cmpint(parts[4].glyph, ==, glyph);
+  g_assert_cmpint(parts[4].start_connector_length, ==, 123);
+  g_assert_cmpint(parts[4].end_connector_length, ==, 192);
+  g_assert_cmpint(parts[4].full_advance, ==, 1000);
+  g_assert(!(parts[4].flags & HB_MATH_GLYPH_PART_FLAG_EXTENDER));
+
+  closeFont();
+
+  cleanupFreeType();
+}
+
 int
 main (int argc, char **argv)
 {
@@ -529,6 +688,7 @@ main (int argc, char **argv)
   hb_test_add (test_get_glyph_assembly_italics_correction);
   hb_test_add (test_get_min_connector_overlap);
   hb_test_add (test_get_glyph_variants);
+  hb_test_add (test_get_glyph_assembly);
 
   return hb_test_run();
 }