1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "base/strings/utf_string_conversions.h" 6#include "testing/gtest/include/gtest/gtest.h" 7#include "ui/base/text/bytes_formatting.h" 8 9namespace ui { 10 11TEST(BytesFormattingTest, GetByteDisplayUnits) { 12 static const struct { 13 int64 bytes; 14 DataUnits expected; 15 } cases[] = { 16 {0, DATA_UNITS_BYTE}, 17 {512, DATA_UNITS_BYTE}, 18 {10*1024, DATA_UNITS_KIBIBYTE}, 19 {10*1024*1024, DATA_UNITS_MEBIBYTE}, 20 {10LL*1024*1024*1024, DATA_UNITS_GIBIBYTE}, 21 {10LL*1024*1024*1024*1024, DATA_UNITS_TEBIBYTE}, 22 {~(1LL<<63), DATA_UNITS_PEBIBYTE}, 23#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON) 24 {-1, DATA_UNITS_BYTE}, 25#endif 26 }; 27 28 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) 29 EXPECT_EQ(cases[i].expected, GetByteDisplayUnits(cases[i].bytes)); 30} 31 32TEST(BytesFormattingTest, FormatBytes) { 33 static const struct { 34 int64 bytes; 35 DataUnits units; 36 const char* expected; 37 const char* expected_with_units; 38 } cases[] = { 39 // Expected behavior: we show one post-decimal digit when we have 40 // under two pre-decimal digits, except in cases where it makes no 41 // sense (zero or bytes). 42 // Since we switch units once we cross the 1000 mark, this keeps 43 // the display of file sizes or bytes consistently around three 44 // digits. 45 {0, DATA_UNITS_BYTE, "0", "0 B"}, 46 {512, DATA_UNITS_BYTE, "512", "512 B"}, 47 {512, DATA_UNITS_KIBIBYTE, "0.5", "0.5 KB"}, 48 {1024*1024, DATA_UNITS_KIBIBYTE, "1,024", "1,024 KB"}, 49 {1024*1024, DATA_UNITS_MEBIBYTE, "1.0", "1.0 MB"}, 50 {1024*1024*1024, DATA_UNITS_GIBIBYTE, "1.0", "1.0 GB"}, 51 {10LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "10.0", "10.0 GB"}, 52 {99LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "99.0", "99.0 GB"}, 53 {105LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "105", "105 GB"}, 54 {105LL*1024*1024*1024 + 500LL*1024*1024, DATA_UNITS_GIBIBYTE, 55 "105", "105 GB"}, 56 {~(1LL<<63), DATA_UNITS_GIBIBYTE, "8,589,934,592", "8,589,934,592 GB"}, 57 {~(1LL<<63), DATA_UNITS_PEBIBYTE, "8,192", "8,192 PB"}, 58 59 {99*1024 + 103, DATA_UNITS_KIBIBYTE, "99.1", "99.1 KB"}, 60 {1024*1024 + 103, DATA_UNITS_KIBIBYTE, "1,024", "1,024 KB"}, 61 {1024*1024 + 205 * 1024, DATA_UNITS_MEBIBYTE, "1.2", "1.2 MB"}, 62 {1024*1024*1024 + (927 * 1024*1024), DATA_UNITS_GIBIBYTE, 63 "1.9", "1.9 GB"}, 64 {10LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "10.0", "10.0 GB"}, 65 {100LL*1024*1024*1024, DATA_UNITS_GIBIBYTE, "100", "100 GB"}, 66#if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON) 67 {-1, DATA_UNITS_BYTE, "", ""}, 68#endif 69 }; 70 71 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { 72 EXPECT_EQ(base::ASCIIToUTF16(cases[i].expected), 73 FormatBytesWithUnits(cases[i].bytes, cases[i].units, false)); 74 EXPECT_EQ(base::ASCIIToUTF16(cases[i].expected_with_units), 75 FormatBytesWithUnits(cases[i].bytes, cases[i].units, true)); 76 } 77} 78 79} // namespace ui 80