[pango] Add some tests for coverage

[Matthias Clasen <matthiasc src gnome org>]

commit 66fb86275ddfeee8c2cf6fc3bd7153a080022b82
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 12 22:20:11 2019 -0400

    Add some tests for coverage

 tests/meson.build     |  1 +
 tests/test-coverage.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
---
diff --git a/tests/meson.build b/tests/meson.build
index b2d2d3e1..f625a466 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -17,6 +17,7 @@ test_env = [
 ]
 
 tests = [
+  [ 'test-coverage' ],
   [ 'testboundaries' ],
   [ 'testboundaries_ucd' ],
   [ 'testcolor' ],
diff --git a/tests/test-coverage.c b/tests/test-coverage.c
new file mode 100644
index 00000000..9d6bbb8c
--- /dev/null
+++ b/tests/test-coverage.c
@@ -0,0 +1,83 @@
+/* Pango
+ * test-coverage.c: Test coverage
+ *
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.         See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <pango/pango.h>
+
+static void
+test_coverage_basic (void)
+{
+  PangoCoverage *coverage;
+  int i;
+
+  coverage = pango_coverage_new ();
+
+  for (i = 0; i < 100; i++)
+    g_assert_cmpint (pango_coverage_get (coverage, i), ==, PANGO_COVERAGE_NONE);
+
+  for (i = 0; i < 100; i++)
+    pango_coverage_set (coverage, i, PANGO_COVERAGE_EXACT);
+
+  for (i = 0; i < 100; i++)
+    g_assert_cmpint (pango_coverage_get (coverage, i), ==, PANGO_COVERAGE_EXACT);
+
+  for (i = 0; i < 100; i++)
+    pango_coverage_set (coverage, i, PANGO_COVERAGE_NONE);
+
+  for (i = 0; i < 100; i++)
+    g_assert_cmpint (pango_coverage_get (coverage, i), ==, PANGO_COVERAGE_NONE);
+
+  pango_coverage_unref (coverage);
+}
+
+static void
+test_coverage_copy (void)
+{
+  PangoCoverage *coverage;
+  PangoCoverage *coverage2;
+  int i;
+
+  coverage = pango_coverage_new ();
+
+  for (i = 0; i < 100; i++)
+    pango_coverage_set (coverage, i, PANGO_COVERAGE_EXACT);
+
+  coverage2 = pango_coverage_copy (coverage);
+
+  for (i = 0; i < 50; i++)
+    pango_coverage_set (coverage, i, PANGO_COVERAGE_NONE);
+
+  for (i = 0; i < 100; i++)
+    g_assert_cmpint (pango_coverage_get (coverage2, i), ==, PANGO_COVERAGE_EXACT);
+
+  pango_coverage_unref (coverage);
+  pango_coverage_unref (coverage2);
+}
+
+int
+main (int argc, char *argv[])
+{
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/coverage/basic", test_coverage_basic);
+  g_test_add_func ("/coverage/copy", test_coverage_copy);
+
+  return g_test_run ();
+}