Index: ui/base/text/bytes_formatting_unittest.cc |
diff --git a/ui/base/text/bytes_formatting_unittest.cc b/ui/base/text/bytes_formatting_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a21425926f05ae0e11f36c851627ee0b91983656 |
--- /dev/null |
+++ b/ui/base/text/bytes_formatting_unittest.cc |
@@ -0,0 +1,79 @@ |
+// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "base/utf_string_conversions.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+#include "ui/base/text/bytes_formatting.h" |
+ |
+namespace ui { |
+ |
+TEST(BytesFormattingTest, GetByteDisplayUnits) { |
+ static const struct { |
+ int64 bytes; |
+ DataUnits expected; |
+ } 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}, |
+#ifdef NDEBUG |
+ {-1, DATA_UNITS_BYTE}, |
+#endif |
+ }; |
+ |
+ for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) |
+ EXPECT_EQ(cases[i].expected, GetByteDisplayUnits(cases[i].bytes)); |
+} |
+ |
+TEST(BytesFormattingTest, FormatBytes) { |
+ static const struct { |
+ int64 bytes; |
+ DataUnits units; |
+ const char* expected; |
+ const char* expected_with_units; |
+ } 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"}, |
+#ifdef NDEBUG |
+ {-1, DATA_UNITS_BYTE, "", ""}, |
+#endif |
+ }; |
+ |
+ for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) { |
+ EXPECT_EQ(ASCIIToUTF16(cases[i].expected), |
+ FormatBytesWithUnits(cases[i].bytes, cases[i].units, false)); |
+ EXPECT_EQ(ASCIIToUTF16(cases[i].expected_with_units), |
+ FormatBytesWithUnits(cases[i].bytes, cases[i].units, true)); |
+ } |
+} |
+ |
+} // namespace ui |