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author | Eugene Platonov <jozic@live.com> | 2015-12-01 13:26:50 -0500 |
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committer | Eugene Platonov <jozic@live.com> | 2015-12-01 14:15:06 -0500 |
commit | 4a918ce6570129d3d4fd2d3e98d43f8078bb2d99 (patch) | |
tree | 9885a814379a7cc918607c7aa75ab8f8a3f8e6c5 /kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala | |
parent | db5d0293dac1715bf585af42c0b86e668eba6803 (diff) | |
download | Kamon-4a918ce6570129d3d4fd2d3e98d43f8078bb2d99.tar.gz Kamon-4a918ce6570129d3d4fd2d3e98d43f8078bb2d99.tar.bz2 Kamon-4a918ce6570129d3d4fd2d3e98d43f8078bb2d99.zip |
+ core: provide generic way to scale time and memory metrics
Diffstat (limited to 'kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala')
-rw-r--r-- | kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala b/kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala new file mode 100644 index 00000000..7133579e --- /dev/null +++ b/kamon-core/src/test/scala/kamon/metric/instrument/UnitOfMeasurementSpec.scala @@ -0,0 +1,98 @@ +/* + * ========================================================================================= + * Copyright © 2013-2015 the kamon project <http://kamon.io/> + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the + * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, + * either express or implied. See the License for the specific language governing permissions + * and limitations under the License. + * ========================================================================================= + */ + +package kamon.metric.instrument + +import kamon.metric.instrument.UnitOfMeasurement.Unknown +import org.scalatest.{Matchers, WordSpec} + +class UnitOfMeasurementSpec extends WordSpec with Matchers { + + "Time unit" should { + "resolve Time Unit by valid name" in { + Time("s") should be(Time.Seconds) + Time("n") should be(Time.Nanoseconds) + Time("ms") should be(Time.Milliseconds) + Time("µs") should be(Time.Microseconds) + } + "fail to resolve Time Unit by invalid name" in { + val ex = intercept[IllegalArgumentException](Time("boo")) + ex.getMessage should be("Can't recognize time unit 'boo'") + } + "scale time properly" in { + val epsilon = 0.0001 + + Time.Nanoseconds.scale(Time.Nanoseconds)(1000000D) should be(1000000D +- epsilon) + Time.Nanoseconds.scale(Time.Microseconds)(1000000D) should be(1000D +- epsilon) + Time.Nanoseconds.scale(Time.Milliseconds)(1000000D) should be(1D +- epsilon) + Time.Nanoseconds.scale(Time.Seconds)(1000000D) should be(0.001D +- epsilon) + Time.Seconds.scale(Time.Nanoseconds)(1D) should be(1000000000D +- epsilon) + } + "allow scale only time" in { + intercept[IllegalArgumentException](Time.Nanoseconds.tryScale(Unknown)(100)) + .getMessage should be("Can't scale different types of units `time` and `unknown`") + intercept[IllegalArgumentException](Time.Nanoseconds.tryScale(Memory.Bytes)(100)) + .getMessage should be("Can't scale different types of units `time` and `bytes`") + val epsilon = 0.0001 + + Time.Nanoseconds.tryScale(Time.Nanoseconds)(100D) should be(100D +- epsilon) + } + } + + "Memory unit" should { + "resolve Memory Unit by valid name" in { + Memory("b") should be(Memory.Bytes) + Memory("Kb") should be(Memory.KiloBytes) + Memory("Mb") should be(Memory.MegaBytes) + Memory("Gb") should be(Memory.GigaBytes) + } + "fail to resolve Memory Unit by invalid name" in { + val ex = intercept[IllegalArgumentException](Memory("boo")) + ex.getMessage should be("Can't recognize memory unit 'boo'") + } + "scale memory properly" in { + val epsilon = 0.0001 + + Memory.Bytes.scale(Memory.Bytes)(1000000D) should be(1000000D +- epsilon) + Memory.Bytes.scale(Memory.KiloBytes)(1000000D) should be(976.5625D +- epsilon) + Memory.Bytes.scale(Memory.MegaBytes)(1000000D) should be(0.9536D +- epsilon) + Memory.Bytes.scale(Memory.GigaBytes)(1000000D) should be(9.3132E-4D +- epsilon) + Memory.MegaBytes.scale(Memory.Bytes)(1D) should be(1048576D +- epsilon) + } + "allow scale only memory" in { + intercept[IllegalArgumentException](Memory.Bytes.tryScale(Unknown)(100)) + .getMessage should be("Can't scale different types of units `bytes` and `unknown`") + intercept[IllegalArgumentException](Memory.Bytes.tryScale(Time.Nanoseconds)(100)) + .getMessage should be("Can't scale different types of units `bytes` and `time`") + val epsilon = 0.0001 + + Memory.Bytes.tryScale(Memory.Bytes)(100D) should be(100D +- epsilon) + } + + } + + "Unknown unit" should { + "allow scale only Unknown" in { + intercept[IllegalArgumentException](Unknown.tryScale(Memory.Bytes)(100)) + .getMessage should be("Can't scale different types of units `unknown` and `bytes`") + intercept[IllegalArgumentException](Unknown.tryScale(Time.Nanoseconds)(100)) + .getMessage should be("Can't scale different types of units `unknown` and `time`") + + Unknown.scale(Unknown)(100D) should be(100D) + } + + } +} |