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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "wtf/dtoa.h" | 5 #include "wtf/dtoa.h" |
| 6 | 6 |
| 7 #include "testing/gtest/include/gtest/gtest.h" | 7 #include "testing/gtest/include/gtest/gtest.h" |
| 8 | 8 |
| 9 namespace WTF { | 9 namespace WTF { |
| 10 | 10 |
| 11 TEST(DtoaTest, TestNumberToFixedPrecisionString) | 11 TEST(DtoaTest, TestNumberToFixedPrecisionString) { |
| 12 { | 12 NumberToStringBuffer buffer; |
| 13 NumberToStringBuffer buffer; | |
| 14 | 13 |
| 15 // There should be no trailing decimal or zeros. | 14 // There should be no trailing decimal or zeros. |
| 16 numberToFixedPrecisionString(0.0, 6, buffer, true); | 15 numberToFixedPrecisionString(0.0, 6, buffer, true); |
| 17 EXPECT_STREQ("0", buffer); | 16 EXPECT_STREQ("0", buffer); |
| 18 | 17 |
| 19 // Up to 6 leading zeros. | 18 // Up to 6 leading zeros. |
| 20 numberToFixedPrecisionString(0.00000123123123, 6, buffer, true); | 19 numberToFixedPrecisionString(0.00000123123123, 6, buffer, true); |
| 21 EXPECT_STREQ("0.00000123123", buffer); | 20 EXPECT_STREQ("0.00000123123", buffer); |
| 22 | 21 |
| 23 numberToFixedPrecisionString(0.000000123123123, 6, buffer, true); | 22 numberToFixedPrecisionString(0.000000123123123, 6, buffer, true); |
| 24 EXPECT_STREQ("1.23123e-7", buffer); | 23 EXPECT_STREQ("1.23123e-7", buffer); |
| 25 | 24 |
| 26 // Up to 6 places before the decimal. | 25 // Up to 6 places before the decimal. |
| 27 numberToFixedPrecisionString(123123.123, 6, buffer, true); | 26 numberToFixedPrecisionString(123123.123, 6, buffer, true); |
| 28 EXPECT_STREQ("123123", buffer); | 27 EXPECT_STREQ("123123", buffer); |
| 29 | 28 |
| 30 numberToFixedPrecisionString(1231231.23, 6, buffer, true); | 29 numberToFixedPrecisionString(1231231.23, 6, buffer, true); |
| 31 EXPECT_STREQ("1.23123e+6", buffer); | 30 EXPECT_STREQ("1.23123e+6", buffer); |
| 32 | 31 |
| 33 // Don't strip trailing zeros in exponents. | 32 // Don't strip trailing zeros in exponents. |
| 34 // http://crbug.com/545711 | 33 // http://crbug.com/545711 |
| 35 numberToFixedPrecisionString(0.000000000123123, 6, buffer, true); | 34 numberToFixedPrecisionString(0.000000000123123, 6, buffer, true); |
| 36 EXPECT_STREQ("1.23123e-10", buffer); | 35 EXPECT_STREQ("1.23123e-10", buffer); |
| 37 | 36 |
| 38 // FIXME: Trailing zeros before exponents should be stripped. | 37 // FIXME: Trailing zeros before exponents should be stripped. |
| 39 numberToFixedPrecisionString(0.0000000001, 6, buffer, true); | 38 numberToFixedPrecisionString(0.0000000001, 6, buffer, true); |
| 40 EXPECT_STREQ("1.00000e-10", buffer); | 39 EXPECT_STREQ("1.00000e-10", buffer); |
| 41 } | 40 } |
| 42 | 41 |
| 43 TEST(DtoaTest, TestNumberToFixedPrecisionString_DontTruncateTrailingZeros) | 42 TEST(DtoaTest, TestNumberToFixedPrecisionString_DontTruncateTrailingZeros) { |
| 44 { | 43 NumberToStringBuffer buffer; |
| 45 NumberToStringBuffer buffer; | |
| 46 | 44 |
| 47 // There should be a trailing decimal and zeros. | 45 // There should be a trailing decimal and zeros. |
| 48 numberToFixedPrecisionString(0.0, 6, buffer, false); | 46 numberToFixedPrecisionString(0.0, 6, buffer, false); |
| 49 EXPECT_STREQ("0.00000", buffer); | 47 EXPECT_STREQ("0.00000", buffer); |
| 50 } | 48 } |
| 51 | 49 |
| 52 } // namespace WTF | 50 } // namespace WTF |
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