source/misc/embedded_libs/fmt-8.1.1/test/header-only-test.cc

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// Header-only configuration test

#include "fmt/core.h"
#include "fmt/ostream.h"
#include "gtest/gtest.h"

#ifndef FMT_HEADER_ONLY
#  error "Not in the header-only mode."
#endif

TEST(header_only_test, format) { EXPECT_EQ(fmt::format("foo"), "foo"); }