diff options
Diffstat (limited to 'mozglue/tests/TestPrintf.cpp')
| -rw-r--r-- | mozglue/tests/TestPrintf.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/mozglue/tests/TestPrintf.cpp b/mozglue/tests/TestPrintf.cpp new file mode 100644 index 0000000000..69fcfd51b2 --- /dev/null +++ b/mozglue/tests/TestPrintf.cpp @@ -0,0 +1,164 @@ +/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/IntegerPrintfMacros.h" +#include "mozilla/Printf.h" + +#include <cfloat> +#include <stdarg.h> + +// A simple implementation of PrintfTarget, just for testing +// PrintfTarget::print. +class TestPrintfTarget : public mozilla::PrintfTarget { + public: + static const char* test_string; + + TestPrintfTarget() : mOut(0) { memset(mBuffer, '\0', sizeof(mBuffer)); } + + ~TestPrintfTarget() { + MOZ_RELEASE_ASSERT(mOut == strlen(test_string)); + MOZ_RELEASE_ASSERT(strncmp(mBuffer, test_string, strlen(test_string)) == 0); + } + + bool append(const char* sp, size_t len) override { + if (mOut + len < sizeof(mBuffer)) { + memcpy(&mBuffer[mOut], sp, len); + } + mOut += len; + return true; + } + + private: + char mBuffer[100]; + size_t mOut; +}; + +const char* TestPrintfTarget::test_string = "test string"; + +static void TestPrintfTargetPrint() { + TestPrintfTarget checker; + checker.print("test string"); +} + +static bool MOZ_FORMAT_PRINTF(2, 3) + print_one(const char* expect, const char* fmt, ...) { + va_list ap; + + va_start(ap, fmt); + mozilla::SmprintfPointer output = mozilla::Vsmprintf(fmt, ap); + va_end(ap); + + return output && !strcmp(output.get(), expect); +} + +static const char* zero() { return nullptr; } + +static void TestPrintfFormats() { + MOZ_RELEASE_ASSERT(print_one("0", "%d", 0)); + MOZ_RELEASE_ASSERT(print_one("23", "%d", 23)); + MOZ_RELEASE_ASSERT(print_one("+23", "%+d", 23)); + MOZ_RELEASE_ASSERT(print_one("-23", "%+d", -23)); + MOZ_RELEASE_ASSERT(print_one("0023", "%04d", 23)); + MOZ_RELEASE_ASSERT(print_one("777777", "%04d", 777777)); + MOZ_RELEASE_ASSERT(print_one(" 23", "% 4d", 23)); + MOZ_RELEASE_ASSERT(print_one("23 ", "%-4d", 23)); + MOZ_RELEASE_ASSERT(print_one(" 23", "%*d", 4, 23)); + MOZ_RELEASE_ASSERT(print_one("-23 ", "%*d", -7, -23)); + MOZ_RELEASE_ASSERT(print_one(" 077", "%5.3d", 77)); + MOZ_RELEASE_ASSERT(print_one(" 077", "%5.*d", 3, 77)); + MOZ_RELEASE_ASSERT(print_one(" 077", "%*.*d", 5, 3, 77)); + MOZ_RELEASE_ASSERT(print_one("077 ", "%*.*d", -5, 3, 77)); + MOZ_RELEASE_ASSERT(print_one("77 ", "%*.*d", -5, -3, 77)); + MOZ_RELEASE_ASSERT(print_one("-1", "%d", -1)); + MOZ_RELEASE_ASSERT(print_one("23", "%u", 23u)); + MOZ_RELEASE_ASSERT(print_one("0x17", "0x%x", 23u)); + MOZ_RELEASE_ASSERT(print_one("0xFF", "0x%X", 255u)); + MOZ_RELEASE_ASSERT(print_one("027", "0%o", 23u)); + MOZ_RELEASE_ASSERT(print_one("-1", "%hd", (short)-1)); + // A funny special case. + MOZ_RELEASE_ASSERT(print_one("", "%.*d", 0, 0)); + // This could be expanded if need be, it's just convenient to do + // it this way. + if (sizeof(short) == 2) { + MOZ_RELEASE_ASSERT(print_one("8000", "%hx", (unsigned short)0x8000)); + } + MOZ_RELEASE_ASSERT(print_one("2305", "%ld", 2305l)); + MOZ_RELEASE_ASSERT(print_one("-2305", "%ld", -2305l)); + MOZ_RELEASE_ASSERT(print_one("0xf0f0", "0x%lx", 0xf0f0ul)); + MOZ_RELEASE_ASSERT(print_one("0", "%lld", 0ll)); + MOZ_RELEASE_ASSERT(print_one("2305", "%lld", 2305ll)); + MOZ_RELEASE_ASSERT(print_one("-2305", "%lld", -2305ll)); + // A funny special case. + MOZ_RELEASE_ASSERT(print_one("", "%.*lld", 0, 0ll)); + MOZ_RELEASE_ASSERT(print_one("0xF0F0", "0x%llX", 0xf0f0ull)); + MOZ_RELEASE_ASSERT(print_one("27270", "%zu", (size_t)27270)); + MOZ_RELEASE_ASSERT(print_one("27270", "%zu", (size_t)27270)); + MOZ_RELEASE_ASSERT(print_one("hello", "he%so", "ll")); + MOZ_RELEASE_ASSERT(print_one("hello ", "%-8s", "hello")); + MOZ_RELEASE_ASSERT(print_one(" hello", "%8s", "hello")); + MOZ_RELEASE_ASSERT(print_one("hello ", "%*s", -8, "hello")); + MOZ_RELEASE_ASSERT(print_one("hello", "%.*s", 5, "hello there")); + MOZ_RELEASE_ASSERT(print_one("", "%.*s", 0, "hello there")); + MOZ_RELEASE_ASSERT(print_one("%%", "%%%%")); + MOZ_RELEASE_ASSERT(print_one("0", "%p", (char*)0)); + MOZ_RELEASE_ASSERT(print_one("h", "%c", 'h')); + MOZ_RELEASE_ASSERT(print_one("1.500000", "%f", 1.5f)); + MOZ_RELEASE_ASSERT(print_one("1.5", "%g", 1.5)); + MOZ_RELEASE_ASSERT(print_one("1.50000", "%.5f", 1.5)); + + MOZ_RELEASE_ASSERT(print_one("z ", "%-7s", "z")); + MOZ_RELEASE_ASSERT(print_one("z ", "%*s", -7, "z")); + MOZ_RELEASE_ASSERT(print_one("hello", "%*s", -3, "hello")); + + MOZ_RELEASE_ASSERT(print_one(" q", "%3c", 'q')); + MOZ_RELEASE_ASSERT(print_one("q ", "%-3c", 'q')); + MOZ_RELEASE_ASSERT(print_one(" q", "%*c", 3, 'q')); + MOZ_RELEASE_ASSERT(print_one("q ", "%*c", -3, 'q')); + + // Regression test for bug#1350097. The bug was an assertion + // failure caused by printing a very long floating point value. + print_one("ignore", "%lf", DBL_MAX); + + // Regression test for bug#1517433. The bug was an assertion + // failure caused by printing a floating point value with a large + // precision and/or width. + print_one("ignore", "%500.500lf", DBL_MAX); + + MOZ_RELEASE_ASSERT(print_one("2727", "%" PRIu32, (uint32_t)2727)); + MOZ_RELEASE_ASSERT(print_one("aa7", "%" PRIx32, (uint32_t)2727)); + MOZ_RELEASE_ASSERT(print_one("2727", "%" PRIu64, (uint64_t)2727)); + MOZ_RELEASE_ASSERT(print_one("aa7", "%" PRIx64, (uint64_t)2727)); + + int n1, n2; + MOZ_RELEASE_ASSERT(print_one(" hi ", "%n hi %n", &n1, &n2)); + MOZ_RELEASE_ASSERT(n1 == 0); + MOZ_RELEASE_ASSERT(n2 == 4); + + MOZ_RELEASE_ASSERT(print_one("23 % 24", "%2$ld %% %1$d", 24, 23l)); + MOZ_RELEASE_ASSERT( + print_one("7 8 9 10", "%4$lld %3$ld %2$d %1$hd", (short)10, 9, 8l, 7ll)); + + MOZ_RELEASE_ASSERT(print_one("0 ", "%2$p %1$n", &n1, zero())); + MOZ_RELEASE_ASSERT(n1 == 2); + + MOZ_RELEASE_ASSERT(print_one("23 % 024", "%2$-3ld%%%1$4.3d", 24, 23l)); + MOZ_RELEASE_ASSERT(print_one("23 1.5", "%2$d %1$g", 1.5, 23)); + MOZ_RELEASE_ASSERT( + print_one("ff number FF", "%3$llx %1$s %2$lX", "number", 255ul, 255ull)); + MOZ_RELEASE_ASSERT( + print_one("7799 9977", "%2$zu %1$zu", (size_t)9977, (size_t)7799)); +} + +#if defined(XP_WIN) +int wmain() +#else +int main() +#endif // defined(XP_WIN) +{ + TestPrintfFormats(); + TestPrintfTargetPrint(); + + return 0; +} |