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Add a simple buffered stream with no sync

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This commit is contained in:
Victor Zverovich
2020-06-28 06:34:28 -07:00
parent ba363b3a24
commit f69b6eaabd
3 changed files with 81 additions and 2 deletions
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3
test/gtest-extra.h
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@@ -141,7 +141,8 @@ class SuppressAssert {
std::string read(fmt::file& f, size_t count);
# define EXPECT_READ(file, expected_content) \
EXPECT_EQ(expected_content, read(file, std::strlen(expected_content)))
EXPECT_EQ(expected_content, \
read(file, fmt::string_view(expected_content).size()))
#else
# define EXPECT_WRITE(file, statement, expected_output) SUCCEED()

20
test/os-test.cc
View File

@@ -287,6 +287,26 @@ TEST(BufferedFileTest, Fileno) {
EXPECT_READ(copy, FILE_CONTENT);
}
TEST(DirectBufferedFileTest, Print) {
fmt::direct_buffered_file out(
"test-file", fmt::file::WRONLY | fmt::file::CREATE);
fmt::print(out, "The answer is {}.\n", 42);
out.close();
file in("test-file", file::RDONLY);
EXPECT_READ(in, "The answer is 42.\n");
}
TEST(DirectBufferedFileTest, BufferBoundary) {
auto str = std::string(4096, 'x');
fmt::direct_buffered_file out(
"test-file", fmt::file::WRONLY | fmt::file::CREATE);
fmt::print(out, "{}", str);
fmt::print(out, "{}", str);
out.close();
file in("test-file", file::RDONLY);
EXPECT_READ(in, str + str);
}
TEST(FileTest, DefaultCtor) {
file f;
EXPECT_EQ(-1, f.descriptor());