From deb495de42f077e1eadc9ff426769357d85ff59c Mon Sep 17 00:00:00 2001
From: Guillaume Desmottes <guillaume.desmottes@collabora.com>
Date: Tue, 7 Jul 2020 16:50:51 +0200
Subject: [PATCH] glib: unicode: add tests for g_utf8_normalize()

Test corner cases and some examples from Unicode Standard Annex #15
http://unicode.org/reports/tr15/
---
 glib/tests/unicode.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/glib/tests/unicode.c b/glib/tests/unicode.c
index d4955c6d1..5bb33d91e 100644
--- a/glib/tests/unicode.c
+++ b/glib/tests/unicode.c
@@ -1889,6 +1889,45 @@ test_iso15924 (void)
 #undef PACK
 }
 
+static void
+test_normalize (void)
+{
+  guint i;
+  typedef struct
+  {
+    const gchar *str;
+    const gchar *nfd;
+    const gchar *nfc;
+    const gchar *nfkd;
+    const gchar *nfkc;
+  } Test;
+  Test tests[] = {
+    { "Äffin", "A\u0308ffin", "Äffin", "A\u0308ffin", "Äffin" },
+    { "Ä\uFB03n", "A\u0308\uFB03n", "Ä\uFB03n", "A\u0308ffin", "Äffin" },
+    { "Henry IV", "Henry IV", "Henry IV", "Henry IV", "Henry IV" },
+    { "Henry \u2163", "Henry \u2163", "Henry \u2163", "Henry IV", "Henry IV" },
+    { "non-utf\x88", NULL, NULL, NULL, NULL },
+    { "", "", "", "", "" },
+  };
+
+#define TEST(str, mode, expected)                         \
+  {                                                       \
+    gchar *normalized = g_utf8_normalize (str, -1, mode); \
+    g_assert_cmpstr (normalized, ==, expected);           \
+    g_free (normalized);                                  \
+  }
+
+  for (i = 0; i < G_N_ELEMENTS (tests); i++)
+    {
+      TEST (tests[i].str, G_NORMALIZE_NFD, tests[i].nfd);
+      TEST (tests[i].str, G_NORMALIZE_NFC, tests[i].nfc);
+      TEST (tests[i].str, G_NORMALIZE_NFKD, tests[i].nfkd);
+      TEST (tests[i].str, G_NORMALIZE_NFKC, tests[i].nfkc);
+    }
+
+#undef TEST
+}
+
 int
 main (int   argc,
       char *argv[])
@@ -1933,6 +1972,7 @@ main (int   argc,
   g_test_add_func ("/unicode/xdigit", test_xdigit);
   g_test_add_func ("/unicode/xdigit-value", test_xdigit_value);
   g_test_add_func ("/unicode/zero-width", test_zerowidth);
+  g_test_add_func ("/unicode/normalize", test_normalize);
 
   return g_test_run();
 }