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/timestamp_unittest.cc

diff --git a/api/units/timestamp_unittest.cc b/api/units/timestamp_unittest.cc
index 3b2770c..eecfe02 100644
--- a/api/units/timestamp_unittest.cc
+++ b/api/units/timestamp_unittest.cc
@@ -58,6 +58,39 @@
   EXPECT_GT(Timestamp::ms(kLarge), Timestamp::ms(kSmall));
 }
 
+TEST(TimestampTest, CanBeInititializedFromLargeInt) {
+  const int kMaxInt = std::numeric_limits<int>::max();
+  EXPECT_EQ(Timestamp::seconds(kMaxInt).us(),
+            static_cast<int64_t>(kMaxInt) * 1000000);
+  EXPECT_EQ(Timestamp::ms(kMaxInt).us(), static_cast<int64_t>(kMaxInt) * 1000);
+}
+
+TEST(TimestampTest, ConvertsToAndFromDouble) {
+  const int64_t kMicros = 17017;
+  const double kMicrosDouble = kMicros;
+  const double kMillisDouble = kMicros * 1e-3;
+  const double kSecondsDouble = kMillisDouble * 1e-3;
+
+  EXPECT_EQ(Timestamp::us(kMicros).seconds<double>(), kSecondsDouble);
+  EXPECT_EQ(Timestamp::seconds(kSecondsDouble).us(), kMicros);
+
+  EXPECT_EQ(Timestamp::us(kMicros).ms<double>(), kMillisDouble);
+  EXPECT_EQ(Timestamp::ms(kMillisDouble).us(), kMicros);
+
+  EXPECT_EQ(Timestamp::us(kMicros).us<double>(), kMicrosDouble);
+  EXPECT_EQ(Timestamp::us(kMicrosDouble).us(), kMicros);
+
+  const double kPlusInfinity = std::numeric_limits<double>::infinity();
+
+  EXPECT_EQ(Timestamp::Infinity().seconds<double>(), kPlusInfinity);
+  EXPECT_EQ(Timestamp::Infinity().ms<double>(), kPlusInfinity);
+  EXPECT_EQ(Timestamp::Infinity().us<double>(), kPlusInfinity);
+
+  EXPECT_TRUE(Timestamp::seconds(kPlusInfinity).IsInfinite());
+  EXPECT_TRUE(Timestamp::ms(kPlusInfinity).IsInfinite());
+  EXPECT_TRUE(Timestamp::us(kPlusInfinity).IsInfinite());
+}
+
 TEST(UnitConversionTest, TimestampAndTimeDeltaMath) {
   const int64_t kValueA = 267;
   const int64_t kValueB = 450;