Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 264 insertions, 0 deletions

diff --git a/mozglue/tests/TestPrintf.cpp b/mozglue/tests/TestPrintf.cpp
new file mode 100644
index 0000000000..5f6f9e2005
--- /dev/null
+++ b/mozglue/tests/TestPrintf.cpp
@@ -0,0 +1,264 @@
+/* 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/Printf.h"
+
+#include <cfloat>
+#include <cmath>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stddef.h>
+
+#if defined(__clang__)
+#  pragma clang diagnostic push
+#  pragma clang diagnostic ignored "-Wc++11-narrowing"
+#elif defined(__GNUC__)
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wnarrowing"
+#endif
+namespace tiformat {
+#include "glibc_printf_tests/tiformat.c"
+}
+namespace tllformat {
+#include "glibc_printf_tests/tllformat.c"
+}
+#if defined(__clang__)
+#  pragma clang diagnostic pop
+#elif defined(__GNUC__)
+#  pragma GCC diagnostic pop
+#endif
+namespace tfformat {
+#include "glibc_printf_tests/tfformat.c"
+}
+
+// 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");
+}
+
+// As of clang 14, __attribute__((printf)) doesn't allow %n on Android targets,
+// which is used in this test.
+static bool
+#ifndef __ANDROID__
+MOZ_FORMAT_PRINTF(5, 6)
+#endif
+    check_print(const char* file, int line,
+                bool (*cmp)(const char* a, const char* b), const char* expect,
+                const char* fmt, ...) {
+  va_list ap;
+
+  va_start(ap, fmt);
+  mozilla::SmprintfPointer output = mozilla::Vsmprintf(fmt, ap);
+  va_end(ap);
+
+  bool ret = output && cmp(output.get(), expect);
+  if (!ret && strcmp(expect, "ignore") != 0) {
+    fprintf(stderr, "(actual) \"%s\" != (expected) \"%s\" (%s:%d)\n",
+            output.get() ? output.get() : "null", expect, file, line);
+  }
+  return ret;
+}
+
+bool str_match(const char* a, const char* b) { return !strcmp(a, b); }
+
+bool approx_match(const char* a, const char* b) {
+  return tfformat::matches(const_cast<char*>(a), b);
+}
+
+#define print_one(...) check_print(__FILE__, __LINE__, str_match, __VA_ARGS__)
+
+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", "%tu", (ptrdiff_t)27270));
+  MOZ_RELEASE_ASSERT(print_one("27270", "%ju", (intmax_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));
+}
+
+template <typename T, size_t N>
+static void TestGlibcPrintf(T (&test_cases)[N], const char* file,
+                            bool (*cmp)(const char* a, const char* b)) {
+  bool ok = true;
+  char fmt2[40];
+  for (auto& line : test_cases) {
+    // mozilla::PrintfTarget doesn't support the `#` flag character or the
+    // `a` conversion specifier.
+    if (!line.line || strchr(line.format_string, '#') ||
+        strchr(line.format_string, 'a')) {
+      continue;
+    }
+
+    // Derive the format string in the test case to add "2$" in the specifier
+    // (transforming e.g. "%f" into "%2$f"), and append "%1$.0d".
+    // The former will make the format string take the `line.value` as the
+    // second argument, and the latter will make the first argument formatted
+    // with no precision. We'll pass 0 as the first argument, such that the
+    // formatted value for it is "", which means the expected result string
+    // is still the same.
+    MOZ_RELEASE_ASSERT(sizeof(fmt2) > strlen(line.format_string) + 8);
+    const char* percent = strchr(line.format_string, '%');
+    MOZ_RELEASE_ASSERT(percent);
+    size_t percent_off = percent - line.format_string;
+    memcpy(fmt2, line.format_string, percent_off + 1);
+    memcpy(fmt2 + percent_off + 1, "2$", 2);
+    strcpy(fmt2 + percent_off + 3, percent + 1);
+    strcat(fmt2, "%1$.0d");
+
+    int l = line.line;
+    const char* res = line.result;
+    const char* fmt = line.format_string;
+    if (strchr(line.format_string, 'I')) {
+      ok = check_print(file, l, cmp, res, fmt, (size_t)line.value) && ok;
+      ok = check_print(file, l, cmp, res, fmt2, 0, (size_t)line.value) && ok;
+    } else {
+      ok = check_print(file, l, cmp, res, fmt, line.value) && ok;
+      ok = check_print(file, l, cmp, res, fmt2, 0, line.value) && ok;
+    }
+  }
+  MOZ_RELEASE_ASSERT(ok);
+}
+
+#if defined(XP_WIN)
+int wmain()
+#else
+int main()
+#endif  // defined(XP_WIN)
+{
+  TestPrintfFormats();
+  TestPrintfTargetPrint();
+  TestGlibcPrintf(tiformat::sprint_ints, "tiformat.c", str_match);
+  TestGlibcPrintf(tllformat::sprint_ints, "tllformat.c", str_match);
+  TestGlibcPrintf(tfformat::sprint_doubles, "tfformat.c", approx_match);
+
+  // %f is actually a not very useful formatting specifier, and if you give
+  // large numbers, it will print... large amounts of characters. Ensure
+  // that it does (which requires a patch to double-conversion).
+  mozilla::SmprintfPointer dbl_max = mozilla::Smprintf("%f", -DBL_MAX);
+  MOZ_RELEASE_ASSERT(dbl_max);
+  // Its length should be 309 digits before the dot, 6 after, plus the dot
+  // and the negative sign.
+  MOZ_RELEASE_ASSERT(strlen(dbl_max.get()) == 317);
+
+  return 0;
+}