1 //===-- Unittests for isupper----------------------------------------------===// 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/__support/CPP/span.h" 10 #include "src/ctype/isupper.h" 11 12 #include "test/UnitTest/Test.h" 13 14 namespace { 15 16 // TODO: Merge the ctype tests using this framework. 17 constexpr char UPPER_ARRAY[] = { 18 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 19 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 20 }; 21 22 bool in_span(int ch, LIBC_NAMESPACE::cpp::span<const char> arr) { 23 for (size_t i = 0; i < arr.size(); ++i) 24 if (static_cast<int>(arr[i]) == ch) 25 return true; 26 return false; 27 } 28 29 } // namespace 30 31 TEST(LlvmLibcIsUpper, SimpleTest) { 32 EXPECT_NE(LIBC_NAMESPACE::isupper('B'), 0); 33 34 EXPECT_EQ(LIBC_NAMESPACE::isupper('a'), 0); 35 EXPECT_EQ(LIBC_NAMESPACE::isupper('3'), 0); 36 EXPECT_EQ(LIBC_NAMESPACE::isupper(' '), 0); 37 EXPECT_EQ(LIBC_NAMESPACE::isupper('?'), 0); 38 EXPECT_EQ(LIBC_NAMESPACE::isupper('\0'), 0); 39 EXPECT_EQ(LIBC_NAMESPACE::isupper(-1), 0); 40 } 41 42 TEST(LlvmLibcIsUpper, DefaultLocale) { 43 // Loops through all characters, verifying that numbers and letters 44 // return non-zero integer and everything else returns a zero. 45 for (int ch = -255; ch < 255; ++ch) { 46 if (in_span(ch, UPPER_ARRAY)) 47 EXPECT_NE(LIBC_NAMESPACE::isupper(ch), 0); 48 else 49 EXPECT_EQ(LIBC_NAMESPACE::isupper(ch), 0); 50 } 51 } 52