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fix-tests
libc/test/src/stdio/snprintf_test.cpp
46 строк
1 KB
Michael Jones
[libc] add snprintf
17 май 2022, 23:32
17 май 2022, 23:32
9f1d905
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//===-- Unittests for snprintf --------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #include "src/stdio/snprintf.h" #include "utils/UnitTest/Test.h" // The sprintf test cases cover testing the shared printf functionality, so // these tests will focus on snprintf exclusive features. TEST(LlvmLibcSNPrintfTest, CutOff) { char buff[64]; int written; written = __llvm_libc::snprintf(buff, 16, "A simple string with no conversions."); EXPECT_EQ(written, 36); ASSERT_STREQ(buff, "A simple string"); written = __llvm_libc::snprintf(buff, 5, "%s", "1234567890"); EXPECT_EQ(written, 10); ASSERT_STREQ(buff, "1234"); // passing null as the output pointer is allowed as long as buffsz is 0. written = __llvm_libc::snprintf(nullptr, 0, "%s and more", "1234567890"); EXPECT_EQ(written, 19); } TEST(LlvmLibcSNPrintfTest, NoCutOff) { char buff[64]; int written; written = __llvm_libc::snprintf(buff, 37, "A simple string with no conversions."); EXPECT_EQ(written, 36); ASSERT_STREQ(buff, "A simple string with no conversions."); written = __llvm_libc::snprintf(buff, 20, "%s", "1234567890"); EXPECT_EQ(written, 10); ASSERT_STREQ(buff, "1234567890"); }