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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/text/bytes_formatting.h"
#include <stddef.h>
#include <stdint.h>
#include <array>
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ui {
TEST(BytesFormattingTest, GetByteDisplayUnits) {
struct Cases {
int64_t bytes;
DataUnits expected;
};
static const auto cases = std::to_array<Cases>({
{0, DATA_UNITS_BYTE},
{512, DATA_UNITS_BYTE},
{10 * 1024, DATA_UNITS_KIBIBYTE},
{10 * 1024 * 1024, DATA_UNITS_MEBIBYTE},
{10LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE},
{10LL * 1024 * 1024 * 1024 * 1024, DATA_UNITS_TEBIBYTE},
{~(1LL << 63), DATA_UNITS_PEBIBYTE},
});
for (size_t i = 0; i < std::size(cases); ++i)
EXPECT_EQ(cases[i].expected, GetByteDisplayUnits(cases[i].bytes));
}
TEST(BytesFormattingTest, FormatBytes) {
struct Cases {
int64_t bytes;
DataUnits units;
const char* expected;
const char* expected_with_units;
};
static const auto cases = std::to_array<Cases>({
// Expected behavior: we show one post-decimal digit when we have
// under two pre-decimal digits, except in cases where it makes no
// sense (zero or bytes).
// Since we switch units once we cross the 1000 mark, this keeps
// the display of file sizes or bytes consistently around three
// digits.
{0, DATA_UNITS_BYTE, "0", "0 B"},
{512, DATA_UNITS_BYTE, "512", "512 B"},
{512, DATA_UNITS_KIBIBYTE, "0.5", "0.5 KB"},
{1024 * 1024, DATA_UNITS_KIBIBYTE, "1,024", "1,024 KB"},
{1024 * 1024, DATA_UNITS_MEBIBYTE, "1.0", "1.0 MB"},
{1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "1.0", "1.0 GB"},
{10LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "10.0", "10.0 GB"},
{99LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "99.0", "99.0 GB"},
{105LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "105", "105 GB"},
{105LL * 1024 * 1024 * 1024 + 500LL * 1024 * 1024, DATA_UNITS_GIBIBYTE,
"105", "105 GB"},
{~(1LL << 63), DATA_UNITS_GIBIBYTE, "8,589,934,592", "8,589,934,592 GB"},
{~(1LL << 63), DATA_UNITS_PEBIBYTE, "8,192", "8,192 PB"},
{99 * 1024 + 103, DATA_UNITS_KIBIBYTE, "99.1", "99.1 KB"},
{1024 * 1024 + 103, DATA_UNITS_KIBIBYTE, "1,024", "1,024 KB"},
{1024 * 1024 + 205 * 1024, DATA_UNITS_MEBIBYTE, "1.2", "1.2 MB"},
{1024 * 1024 * 1024 + (927 * 1024 * 1024), DATA_UNITS_GIBIBYTE, "1.9",
"1.9 GB"},
{10LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "10.0", "10.0 GB"},
{100LL * 1024 * 1024 * 1024, DATA_UNITS_GIBIBYTE, "100", "100 GB"},
});
for (size_t i = 0; i < std::size(cases); ++i) {
EXPECT_EQ(base::ASCIIToUTF16(cases[i].expected),
FormatBytesWithUnits(cases[i].bytes, cases[i].units, false));
EXPECT_EQ(base::ASCIIToUTF16(cases[i].expected_with_units),
FormatBytesWithUnits(cases[i].bytes, cases[i].units, true));
}
}
} // namespace ui
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