1 //===-- Unittests for isgraph----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/ctype/isgraph.h"
10 #include "utils/UnitTest/Test.h"
11
TEST(LlvmLibcIsGraph,DefaultLocale)12 TEST(LlvmLibcIsGraph, DefaultLocale) {
13 // Loops through all characters, verifying that graphical characters
14 // return a non-zero integer, everything else returns zero.
15 for (int ch = 0; ch < 255; ++ch) {
16 if ('!' <= ch && ch <= '~') // A-Z, a-z, 0-9, punctuation.
17 EXPECT_NE(__llvm_libc::isgraph(ch), 0);
18 else
19 EXPECT_EQ(__llvm_libc::isgraph(ch), 0);
20 }
21 }
22