Fix absl/log:stripping_test when ABSL_MIN_LOG_LEVEL is defined

The test was getting tripped by EXPECT_DEATH_IF_SUPPORTED keeping a literal
copy of the test statement.

PiperOrigin-RevId: 509299343
Change-Id: I63da29d844cc630d750535fd4bb13a2895d32541

absl/log/BUILD.bazel

@@ -546,6 +546,7 @@ cc_test(
     deps = [
         ":check",
         ":log",
+        "//absl/base:log_severity",
         "//absl/base:strerror",
         "//absl/flags:program_name",
         "//absl/log/internal:test_helpers",

absl/log/CMakeLists.txt

@@ -1014,6 +1014,7 @@ absl_cc_test(
     absl::flags_program_name
     absl::log
     absl::log_internal_test_helpers
+    absl::log_severity
     absl::strerror
     absl::strings
     absl::str_format

absl/log/stripping_test.cc

@@ -49,6 +49,7 @@
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 #include "absl/base/internal/strerror.h"
+#include "absl/base/log_severity.h"
 #include "absl/flags/internal/program_name.h"
 #include "absl/log/check.h"
 #include "absl/log/internal/test_helpers.h"
@@ -57,6 +58,10 @@
 #include "absl/strings/str_format.h"
 #include "absl/strings/string_view.h"
 
+// Set a flag that controls whether we actually execute fatal statements, but
+// prevent the compiler from optimizing it out.
+static volatile bool kReallyDie = false;
+
 namespace {
 using ::testing::_;
 using ::testing::Eq;
@@ -304,7 +309,10 @@ TEST_F(StrippingTest, Fatal) {
   // as would happen if we used a literal.  We might (or might not) leave it
   // lying around later; that's what the tests are for!
   const std::string needle = absl::Base64Escape("StrippingTest.Fatal");
-  EXPECT_DEATH_IF_SUPPORTED(LOG(FATAL) << "U3RyaXBwaW5nVGVzdC5GYXRhbA==", "");
+  // We don't care if the LOG statement is actually executed, we're just
+  // checking that it's stripped.
+  if (kReallyDie) LOG(FATAL) << "U3RyaXBwaW5nVGVzdC5GYXRhbA==";
+
   std::unique_ptr<FILE, std::function<void(FILE*)>> exe = OpenTestExecutable();
   ASSERT_THAT(exe, NotNull());
   if (absl::LogSeverity::kFatal >= kAbslMinLogLevel) {