commit 942b360d820f452707b5a496e3ee73ff48c88b1d
author Sebastian Jansson <srte@webrtc.org> Wed May 30 15:47:44 2018 +0200
committer Commit Bot <commit-bot@chromium.org> Wed May 30 14:34:02 2018 +0000
tree a63a88f129b56abf8398d6ad1a0c0a9c6c6843ff
parent f859e55d9b3c65ded24c6a60f0114e611426d0a8

Add conversions to and from double for units.

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}

api/units/data_size_unittest.cc

diff --git a/api/units/data_size_unittest.cc b/api/units/data_size_unittest.cc
index 35cff01..7747258 100644
--- a/api/units/data_size_unittest.cc
+++ b/api/units/data_size_unittest.cc
@@ -19,11 +19,6 @@
   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 @@
   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 @@
   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;