mirror of
https://github.com/fmtlib/fmt.git
synced 2025-10-30 05:31:42 +01:00
117 lines
2.7 KiB
C++
117 lines
2.7 KiB
C++
// Formatting library for C++ - scanning API test
|
|
//
|
|
// Copyright (c) 2019 - present, Victor Zverovich
|
|
// All rights reserved.
|
|
//
|
|
// For the license information refer to format.h.
|
|
|
|
#include "scan.h"
|
|
|
|
#include <time.h>
|
|
|
|
#include <climits>
|
|
|
|
#include "gmock/gmock.h"
|
|
#include "gtest-extra.h"
|
|
|
|
TEST(scan_test, read_text) {
|
|
auto s = fmt::string_view("foo");
|
|
auto end = fmt::scan(s, "foo");
|
|
EXPECT_EQ(end, s.end());
|
|
EXPECT_THROW_MSG(fmt::scan("fob", "foo"), fmt::format_error, "invalid input");
|
|
}
|
|
|
|
TEST(scan_test, read_int) {
|
|
auto n = int();
|
|
fmt::scan("42", "{}", n);
|
|
EXPECT_EQ(n, 42);
|
|
fmt::scan("-42", "{}", n);
|
|
EXPECT_EQ(n, -42);
|
|
}
|
|
|
|
TEST(scan_test, read_longlong) {
|
|
long long n = 0;
|
|
fmt::scan("42", "{}", n);
|
|
EXPECT_EQ(n, 42);
|
|
fmt::scan("-42", "{}", n);
|
|
EXPECT_EQ(n, -42);
|
|
}
|
|
|
|
TEST(scan_test, read_uint) {
|
|
auto n = unsigned();
|
|
fmt::scan("42", "{}", n);
|
|
EXPECT_EQ(n, 42);
|
|
EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error,
|
|
"invalid input");
|
|
}
|
|
|
|
TEST(scan_test, read_ulonglong) {
|
|
unsigned long long n = 0;
|
|
fmt::scan("42", "{}", n);
|
|
EXPECT_EQ(n, 42);
|
|
EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error,
|
|
"invalid input");
|
|
}
|
|
|
|
TEST(scan_test, read_string) {
|
|
auto s = std::string();
|
|
fmt::scan("foo", "{}", s);
|
|
EXPECT_EQ(s, "foo");
|
|
}
|
|
|
|
TEST(scan_test, read_string_view) {
|
|
auto s = fmt::string_view();
|
|
fmt::scan("foo", "{}", s);
|
|
EXPECT_EQ(s, "foo");
|
|
}
|
|
|
|
#ifdef FMT_HAVE_STRPTIME
|
|
namespace fmt {
|
|
template <> struct scanner<tm> {
|
|
std::string format;
|
|
|
|
scan_parse_context::iterator parse(scan_parse_context& ctx) {
|
|
auto it = ctx.begin();
|
|
if (it != ctx.end() && *it == ':') ++it;
|
|
auto end = it;
|
|
while (end != ctx.end() && *end != '}') ++end;
|
|
format.reserve(detail::to_unsigned(end - it + 1));
|
|
format.append(it, end);
|
|
format.push_back('\0');
|
|
return end;
|
|
}
|
|
|
|
template <class ScanContext>
|
|
typename ScanContext::iterator scan(tm& t, ScanContext& ctx) {
|
|
auto result = strptime(ctx.begin(), format.c_str(), &t);
|
|
if (!result) throw format_error("failed to parse time");
|
|
return result;
|
|
}
|
|
};
|
|
} // namespace fmt
|
|
|
|
TEST(scan_test, read_custom) {
|
|
auto input = "Date: 1985-10-25";
|
|
auto t = tm();
|
|
fmt::scan(input, "Date: {0:%Y-%m-%d}", t);
|
|
EXPECT_EQ(t.tm_year, 85);
|
|
EXPECT_EQ(t.tm_mon, 9);
|
|
EXPECT_EQ(t.tm_mday, 25);
|
|
}
|
|
#endif
|
|
|
|
TEST(scan_test, invalid_format) {
|
|
EXPECT_THROW_MSG(fmt::scan("", "{}"), fmt::format_error,
|
|
"argument index out of range");
|
|
EXPECT_THROW_MSG(fmt::scan("", "{"), fmt::format_error,
|
|
"invalid format string");
|
|
}
|
|
|
|
TEST(scan_test, example) {
|
|
auto key = std::string();
|
|
auto value = int();
|
|
fmt::scan("answer = 42", "{} = {}", key, value);
|
|
EXPECT_EQ(key, "answer");
|
|
EXPECT_EQ(value, 42);
|
|
}
|