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Add conversions to and from double for units.

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Bug: webrtc:8415
Change-Id: I6b1f7afb163daa327e45c51f1a3fb7cafbb1444e
Reviewed-on: https://webrtc-review.googlesource.com/78183
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23451}
This commit is contained in:
Sebastian Jansson
2018-05-30 15:47:44 +02:00
committed by Commit Bot
parent f859e55d9b
commit 942b360d82
9 changed files with 424 additions and 87 deletions
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18
api/units/data_size_unittest.cc
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@ -19,11 +19,6 @@ TEST(DataSizeTest, GetBackSameValues) {
EXPECT_EQ(DataSize::bytes(kValue).bytes(), kValue);
}
TEST(DataSizeTest, GetDifferentPrefix) {
const int64_t kValue = 123 * 8000;
EXPECT_EQ(DataSize::bytes(kValue).kilobytes(), kValue / 1000);
}
TEST(DataSizeTest, IdentityChecks) {
const int64_t kValue = 3000;
EXPECT_TRUE(DataSize::Zero().IsZero());
@ -58,6 +53,18 @@ TEST(DataSizeTest, ComparisonOperators) {
EXPECT_GT(DataSize::Infinity(), large);
}
TEST(DataSizeTest, ConvertsToAndFromDouble) {
const int64_t kValue = 128;
const double kDoubleValue = static_cast<double>(kValue);
EXPECT_EQ(DataSize::bytes(kValue).bytes<double>(), kDoubleValue);
EXPECT_EQ(DataSize::bytes(kDoubleValue).bytes(), kValue);
const double kInfinity = std::numeric_limits<double>::infinity();
EXPECT_EQ(DataSize::Infinity().bytes<double>(), kInfinity);
EXPECT_TRUE(DataSize::bytes(kInfinity).IsInfinite());
}
TEST(DataSizeTest, MathOperations) {
const int64_t kValueA = 450;
const int64_t kValueB = 267;
@ -73,6 +80,7 @@ TEST(DataSizeTest, MathOperations) {
EXPECT_EQ((size_a * kFloatValue).bytes(), kValueA * kFloatValue);
EXPECT_EQ((size_a / 10).bytes(), kValueA / 10);
EXPECT_EQ(size_a / size_b, static_cast<double>(kValueA) / kValueB);
DataSize mutable_size = DataSize::bytes(kValueA);
mutable_size += size_b;