btoc32: Add tests.

* tests/test-btoc32.c: New file, based on tests/test-btowc.c.
* tests/test-btoc32-1.sh: New file, based on tests/test-btowc1.sh.
* tests/test-btoc32-2.sh: New file, based on tests/test-btowc2.sh.
* modules/btoc32-tests: New file, based on modules/btowc-tests.

5 files changed, 121 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 80fe741fbb..aa54dd70f0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2020-01-04  Bruno Haible  <bruno@clisp.org>
 
+	btoc32: Add tests.
+	* tests/test-btoc32.c: New file, based on tests/test-btowc.c.
+	* tests/test-btoc32-1.sh: New file, based on tests/test-btowc1.sh.
+	* tests/test-btoc32-2.sh: New file, based on tests/test-btowc2.sh.
+	* modules/btoc32-tests: New file, based on modules/btowc-tests.
+
 	btoc32: New module.
 	* lib/uchar.in.h (btoc32): New declaration.
 	* lib/btoc32.c: New file.
diff --git a/modules/btoc32-tests b/modules/btoc32-tests
new file mode 100644
index 0000000000..95900d59ba
--- /dev/null
+++ b/modules/btoc32-tests
@@ -0,0 +1,21 @@
+Files:
+tests/test-btoc32-1.sh
+tests/test-btoc32-2.sh
+tests/test-btoc32.c
+tests/signature.h
+tests/macros.h
+m4/locale-fr.m4
+m4/codeset.m4
+
+Depends-on:
+setlocale
+
+configure.ac:
+gt_LOCALE_FR
+gt_LOCALE_FR_UTF8
+
+Makefile.am:
+TESTS += test-btoc32-1.sh test-btoc32-2.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-btoc32
+test_btoc32_LDADD = $(LDADD) $(LIB_SETLOCALE)
diff --git a/tests/test-btoc32-1.sh b/tests/test-btoc32-1.sh
new file mode 100755
index 0000000000..ce860ae594
--- /dev/null
+++ b/tests/test-btoc32-1.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test in an ISO-8859-1 or ISO-8859-15 locale.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no traditional french locale is installed"
+  else
+    echo "Skipping test: no traditional french locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR \
+${CHECKER} ./test-btoc32${EXEEXT} 1
diff --git a/tests/test-btoc32-2.sh b/tests/test-btoc32-2.sh
new file mode 100755
index 0000000000..b9cdb99446
--- /dev/null
+++ b/tests/test-btoc32-2.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french Unicode locale is installed"
+  else
+    echo "Skipping test: no french Unicode locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR_UTF8 \
+${CHECKER} ./test-btoc32${EXEEXT} 2
diff --git a/tests/test-btoc32.c b/tests/test-btoc32.c
new file mode 100644
index 0000000000..f5cfbe475f
--- /dev/null
+++ b/tests/test-btoc32.c
@@ -0,0 +1,64 @@
+/* Test of conversion of unibyte character to 32-bit wide character.
+   Copyright (C) 2008-2020 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <uchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (btoc32, wint_t, (int));
+
+#include <locale.h>
+#include <stdio.h>
+#include <wchar.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  int c;
+
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  ASSERT (btoc32 (EOF) == WEOF);
+
+  if (argc > 1)
+    switch (argv[1][0])
+      {
+      case '1':
+        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
+        for (c = 0; c < 0x80; c++)
+          ASSERT (btoc32 (c) == c);
+        for (c = 0xA0; c < 0x100; c++)
+          ASSERT (btoc32 (c) != WEOF);
+        return 0;
+
+      case '2':
+        /* Locale encoding is UTF-8.  */
+        for (c = 0; c < 0x80; c++)
+          ASSERT (btoc32 (c) == c);
+        for (c = 0x80; c < 0x100; c++)
+          ASSERT (btoc32 (c) == WEOF);
+        return 0;
+      }
+
+  return 1;
+}