Apso is Kevel's collection of Scala utility libraries. It provides a series of useful methods.
Apso's latest release is built against Scala 2.12 and Scala 2.13.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso" % "0.21.0"The project is divided in modules, you can instead install only a specific module.
The TestKit is available under the apso-testkit project. You can include it only for the test configuration:
libraryDependencies += "com.kevel" %% "apso-testkit" % "0.21.0" % "test"Please take into account that the library is still in an experimental stage and the interfaces might change for subsequent releases.
- Core
- Akka HTTP/Pekko HTTP
- Amazon Web Services
- Caching
- Collections
- Encryption
- Hashing
- IO
- JSON
- Profiling
- Time
- TestKit
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-core" % "0.21.0"Apso provides methods to ease working with Typesafe's config.
The LazyConfigFactory object provides static methods for creating Config instances in a lazy way. The lazy way refers to the variable loading process. The usual process loads variables in config files eagerly (i.e. the path needs to be defined in the same file it is refered to). The loading process provided by LazyConfigFactory loads and merges all configuration files and only then resolves variables. This loading process introduces a third file (beyond the default ones - application.conf and reference.conf): overrides.conf. This file has priority over the application.conf file and can be used to specify keys that should always be overriden, e.g. by environment variables.
Apso provides a tiny wrapper for Dispatch with synchronous operations. It's called W, and the following shows some sample usage:
import com.kevel.apso.http.W
W.get("http://www.google.com/").getStatus
// res0: Int = 302
W.post("http://www.google.com/", "").getStatus
// res1: Int = 405
W.put("http://www.google.com/", "").getStatus
// res2: Int = 405
W.delete("http://www.google.com/").getStatus
// res3: Int = 405
W.head("http://www.google.com/").getStatus
// res4: Int = 302The POST and PUT methods can also receive the body as JSON (of circe), which adds the Content-type header accordingly.
The Geo object provides methods to compute distances in kilometers between two points on the planet Earth, calculated using the spherical law of cosines. Coordinates are represented by a pair of Double for latitude and longitude.
import com.kevel.apso.Geo
Geo.distance((41.1617609, -8.6024716), (41.1763745, -8.5964861))
// res2: Double = 1.7004440788845807You can also have the distance function curried if you are computing distances from a fixed point:
val distFromOffice = Geo.distanceFrom((41.1617609, -8.6024716))distFromOffice((41.1763745, -8.5964861))
// res3: Double = 1.7004440788845807
distFromOffice((38.7223032, -9.1414664))
// res4: Double = 275.118392477037Apso provides implicit conversions from String, Seq[_], Map[_, _], Seq[Map[_, _]] and AutoCloseable to extended types that come packed with extended features.
import com.kevel.apso.Implicits._
Seq(1, 3, 5).mergeSorted(Seq(2, 4))
// res6: Array[Int] = Array(1, 2, 3, 4, 5)
(0 to 15).average
// res7: Int = 7
Map(1 -> 2, 3 -> 6).twoWayMerge(Map(2 -> 4, 3 -> 5)) { (a, b) => b }
// res8: Map[Int, Int] = Map(2 -> 4, 3 -> 5, 1 -> 2)
Map(1 -> 2, 2 -> 4, 3 -> 6).twoWayMerge(Map(2 -> 2, 3 -> 5)) { (a, b) => b }
// res9: Map[Int, Int] = Map(2 -> 2, 3 -> 5, 1 -> 2)
Map(1 -> 2, 2 -> 3).mapKeys(_ + 1)
// res10: Map[Int, Int] = Map(2 -> 2, 3 -> 3)val rand = new scala.util.Random(1)rand.choose((0 to 15).toSeq)
// res11: Option[Int] = Some(value = 11)
rand.choose((0 to 15).toSeq)
// res12: Option[Int] = Some(value = 1)
rand.choose((0 to 15).toSeq)
// res13: Option[Int] = Some(value = 6)
rand.choose((0 to 15).toSeq)
// res14: Option[Int] = Some(value = 6)
rand.chooseN((0 to 15).toSeq, 4)
// res15: Seq[Int] = List(9, 8, 3, 0)
rand.chooseN((0 to 15).toSeq, 4)
// res16: Seq[Int] = List(7, 6, 5, 2)The JreVersionHelper object provides helper methods to check the two most significant parts of the JRE version at runtime:
import com.kevel.apso.JreVersionHelper
JreVersionHelper.jreVersion
// res0: (Int, Int) = (1, 8)The ProgressBar represents a widget to print a dynamic progress bar in a console.
import com.kevel.apso.ProgressBar
val progress = ProgressBar(100)
progress.tick(1)
// 1% [> ] / [ 0.19 ] ops/s
progress.tick(2)
// 3% [=> ] - [ 0.15 ] ops/s
progress.tick(1)
// 4% [==> ] \ [ 0.12 ] ops/s
progress.tick(10)
// 14% [=======> ] | [ 0.31 ] ops/s
progress.tick(20)
// 34% [==================> ] / [ 0.46 ] ops/s
progress.tick(30)
// 64% [=================================> ] - [ 0.77 ] ops/sThe Reflect object contains helpers for reflection-related tasks, namely to create an instance of a given class given its fully qualified name and also to access singleton objects:
scala> import com.kevel.apso.Reflect
import com.kevel.apso.Reflect
scala> import com.kevel.apso.collection._
import com.kevel.apso.collection._
scala> Reflect.newInstance[HMap[Nothing]]("com.kevel.apso.collection.HMap")
res0: com.kevel.apso.collection.HMap[Nothing] = HMap()
scala> Reflect.companion[Reflect.type]("com.kevel.apso.Reflect")
res1: com.kevel.apso.Reflect.type = com.kevel.apso.Reflect$@3b1dbcaThe Retry object provides a method to retry methods or Futures a given number of times until they succeed or the specified maximum number of retries is reached:
import scala.concurrent._
import scala.concurrent.duration._
import scala.concurrent.ExecutionContext.Implicits.global
import com.kevel.apso.Retry
import java.util.concurrent.atomic.AtomicInteger
val a = new AtomicInteger()
// a: AtomicInteger = 7
def f: Future[Int] = {
Future {
val value = a.getAndAdd(1)
if (value > 5)
value
else {
throw new Exception()
}
}
}
Await.result(Retry.retryFuture(10)(f), Duration.Inf)
// res20: Int = 6
var attempts = 0
// attempts: Int = 0
def m() = {
attempts += 1
if (attempts > 5)
attempts
else
throw new Exception()
}
Retry.retry(10)(m())
// res21: util.Try[Int] = Success(value = 6)The akka-http module provides additional directives to be used in akka-http.
The same features are provided for Pekko under the pekko-http module.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-akka-http" % "0.21.0"The ClientIPDirectives trait exposes an optionalRawClientIP directive that extracts the raw IP of the client from either the X-Forwarded-For, Remote-Address or X-Real-IP header, in that order of priority.
The ExtraMiscDirectives trait exposes the directives cacheControlMaxAge(maxAgeDuration) and optionalRefererHost to set the cache-control header to the supplied finite duration (the minimum resolution is 1 second) to extract the referer from the HTTP request header, respectively. The ExtraMiscDirectives companion object exposes a cacheControlNoCache directive to reply with the no-cache option in the Cache-Control header.
The ProxySupport traits adds helper methods to proxy requests to a given uri, either directly (proxyTo), or with the unmatched path and query parameters of the current context (proxyToUnmatchedPath). In order for the client IP to be correctly propagated in X-Forward-For headers, the ProxySupport trait requires the akka.http.server.remote-address-attribute setting to be on.
Apso provides a group of classes to ease the interaction with the Amazon Web Services, namely S3 and EC2.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-aws" % "0.21.0"The ConfigCredentialsProvider is an AWSCredentialsProvider (from AWS SDK for Java) that retrieves credentials from a typesafe configuration, allowing customization of its Config object, as well as the access key and secret key paths:
import com.kevel.apso.aws._
import com.typesafe.config._
val confProvider = ConfigCredentialsProvider(
config = ConfigFactory.parseString("""{
aws {
access-key = "<access-key>"
secret-key = "<secret-key>"
}
}"""),
accessKeyPath = "aws.access-key",
secretKeyPath = "aws.secret-key")
val credentials = confProvider.getCredentials
credentials.getAWSAccessKeyId
credentials.getAWSSecretKeyThe CredentialStore object serves as an endpoint for the retrieval of AWS credentials from available configurations. It extends the chain in the DefaultAWSCredentialsProviderChain (from AWS SDK for Java) with the retrieval of AWS credentials through the default typesafe configuration file (typically application.conf).
The S3Bucket class wraps an instance of AmazonS3Client (from AWS SDK for Java) and exposes a higher level interface for pushing and pulling files to and from a bucket.
The SerializableAWSCredentials class provides a serializable container for AWS credentials, extending the AWSCredentials class (from AWS SDK for Java).
The apso-caching module provides provides utilities for caching.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-caching" % "0.21.0"Apso provides utilities to simplify the caching of method calls, with ScalaCache and using either Guava or Caffeine as underlying cache implementations.
These utilities are provided as cached() and cachedF() extension methods over all FunctionN[] types:
import scala.concurrent._
import scala.concurrent.duration._
import scala.concurrent.ExecutionContext.Implicits.global
import java.util.concurrent.atomic.AtomicInteger
import com.kevel.apso.caching._
val x = new AtomicInteger(0)
// x: AtomicInteger = 2
val cachedFn = ((i: Int) => {
val value = x.getAndAdd(i)
value
}).cached(config.Cache.Caffeine(Some(3), None))
// cachedFn: MemoizeFn1[scalacache.package.Id, Int, Int] = <function1>
cachedFn(2)
// res25: scalacache.package.Id[Int] = 0
cachedFn(2)
// res26: scalacache.package.Id[Int] = 0
x
// res27: AtomicInteger = 2
val y = new AtomicInteger(0)
// y: AtomicInteger = 3
val cachedFutFn = ((i: Int) => Future {
val value = y.getAndAdd(i)
value
}).cachedF(config.Cache.Guava(Some(2), None))
// cachedFutFn: MemoizeFn1[Future, Int, Int] = <function1>
Await.result(cachedFutFn(3), Duration.Inf)
// res28: Int = 0
Await.result(cachedFutFn(3), Duration.Inf)
// res29: Int = 0
y
// res30: AtomicInteger = 3The apso-collections module provides some helpful collections. To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-collections" % "0.21.0"The Trie class is an implementation of an immutable trie. An example usage follows:
import com.kevel.apso.collection._
val t = Trie[Char, Int]()
// t: Trie[Char, Int] = Trie(value = None, nodes = Map())
val nt = t.set("one", 1).set("two", 2).set("three", 3).set("four", 4)
// nt: Trie[Char, Int] = Trie(
// value = None,
// nodes = Map(
// 'o' -> Trie(
// value = None,
// nodes = Map(
// 'n' -> Trie(
// value = None,
// nodes = Map('e' -> Trie(value = Some(value = 1), nodes = Map()))
// )
// )
// ),
// 't' -> Trie(
// value = None,
// nodes = Map(
// 'w' -> Trie(
// value = None,
// nodes = Map('o' -> Trie(value = Some(value = 2), nodes = Map()))
// ),
// 'h' -> Trie(
// value = None,
// nodes = Map(
// 'r' -> Trie(
// value = None,
// nodes = Map(
// 'e' -> Trie(
// value = None,
// nodes = Map(
// 'e' -> Trie(value = Some(value = 3), nodes = Map())
// )
// )
// )
// )
// )
// )
// )
// ),
// 'f' -> Trie(
// value = None,
// nodes = Map(
// 'o' -> Trie(
// value = None,
// nodes = Map(
// 'u' -> Trie(
// value = None,
// nodes = Map('r' -> Trie(value = Some(value = 4), nodes = Map()))
// )
// )
// )
// ...
nt.get("one")
// res32: Option[Int] = Some(value = 1)
nt.get("two")
// res33: Option[Int] = Some(value = 2)
nt.get("five")
// res34: Option[Int] = NoneThe TypedMap is a map that associates types with values. It can be used as follows:
import com.kevel.apso.collection._
val m = TypedMap("one", 2, 3L)
// m: TypedMap[Any] = Map(java.lang.String -> one, Int -> 2, Long -> 3)
m[String]
// res36: String = "one"
m[Int]
// res37: Int = 2
m[Long]
// res38: Long = 3L
m.get[String]
// res39: Option[String] = Some(value = "one")
m.get[Int]
// res40: Option[Int] = Some(value = 2)
m.get[Long]
// res41: Option[Long] = Some(value = 3L)
m.get[Char]
// res42: Option[Char] = NoneApso provides some utility iterators.
The CircularIterator is an iterator that iterates over its elements in a circular way. See the following for sample usage:
import com.kevel.apso.iterator.CircularIterator
val circularIterator = CircularIterator(List(1, 2, 3).iterator)
// circularIterator: CircularIterator[Int] = non-empty iterator
circularIterator.take(10).toList
// res44: List[Int] = List(1, 2, 3, 1, 2, 3, 1, 2, 3, 1)The MergedBufferedIterator is a collection of sorted BufferedIterators that allows traversing them in order, while also providing a mergeSorted method to merge with another sorted BufferedIterator. See the following for sample usage:
import com.kevel.apso.iterator.MergedBufferedIterator
val it1 = MergedBufferedIterator(List(
(0 to 3).iterator.buffered,
(0 to 8).iterator.buffered,
(0 to 15).iterator.buffered,
(0 to 11).iterator.buffered))
// it1: MergedBufferedIterator[Int] = empty iterator
it1.toList
// res46: List[Int] = List(
// 0,
// 0,
// 0,
// 0,
// 1,
// 1,
// 1,
// 1,
// 2,
// 2,
// 2,
// 2,
// 3,
// 3,
// 3,
// 3,
// 4,
// 4,
// 4,
// 5,
// 5,
// 5,
// 6,
// 6,
// 6,
// 7,
// 7,
// 7,
// 8,
// 8,
// 8,
// 9,
// 9,
// 10,
// 10,
// 11,
// 11,
// 12,
// 13,
// 14,
// 15
// )
val it2 = MergedBufferedIterator(List(
Iterator(1, 3, 5).buffered,
Iterator(2).buffered))
// it2: MergedBufferedIterator[Int] = non-empty iterator
it2.mergeSorted(Iterator(4, 6).buffered).toList
// res47: List[Int] = List(1, 2, 3, 4, 5, 6)Apso provides some simple utility classes to deal with encryption and decryption of data, and methods that ease the creation of the underlying Cyphers.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-encryption" % "0.21.0"The following shows the creation of Encryptor and Decryptor objects,
by loading a KeyStore file holding a symmetric key, and its use to encrypt and
decrypt data:
import com.kevel.apso.encryption._
val encryptor = Encryptor("AES", getClass.getResourceAsStream("/keystoreFile.jceks"), "keystorePass", "keyAlias", "keyPass")
val decryptor = Decryptor("AES", getClass.getResourceAsStream("/keystoreFile.jceks"), "keystorePass", "keyAlias", "keyPass")
val secretData = "secret_info"
// encrypt data and encode it in base64; then decrypt it to string
decryptor.get.decryptToString(encryptor.get.encryptToSafeString(secretData).get)Apso provides utilities for various hashing functions. To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-hashing" % "0.21.0"import com.kevel.apso.hashing.Implicits._
"abcd".md5
// res50: String = "e2fc714c4727ee9395f324cd2e7f331f"
"abcd".murmurHash
// res51: Long = 7785666560123423118LApso provides methods to deal with IO-related features in the io module.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-io" % "0.21.0"Apso introduces the concept of a FileDescriptor: a representation of a file stored in an arbitrary location. A descriptor includes logic to copy files to and from a local filesystem, as well as filesystem navigation logic. The following implementations of FileDescriptor are available:
- LocalFileDescriptor (for files in the local filesystem);
- S3FileDescriptor (for files in S3);
- SftpFileDescriptor (for files served over SFTP).
The ResourceUtil object provides methods to access files available through Java's runtime environment classpath:
import com.kevel.apso.io.ResourceUtil
// import com.kevel.apso.io.ResourceUtil
ResourceUtil.getResourceURL("reference.conf")
// res0: String = /Users/jcazevedo/work/apso/apso/target/scala-2.11/classes/reference.conf
ResourceUtil.getResourceStream("reference.conf")
// res1: java.io.InputStream = java.io.BufferedInputStream@6f16d172
ResourceUtil.getResourceAsString("reference.conf")
// res2: String =
// "apso {
// io {
// file-descriptor {
// sftp.max-connections-per-host = 8
// sftp.max-idle-time = 10s
// }
// }
// }
// "Apso includes a bunch of utilities to work with JSON serialization and deserialization, specifically with the circe library. To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-circe" % "0.21.0"The ExtraJsonProtocol object combines three traits that provide extra Encoders and Decoders (of circe) for some relevant types. The Encoders and Decoders are provided on each trait for the following types:
- ExtraTimeJsonProtocol:
FiniteDuration,IntervalandPeriod; - ExtraHttpJsonProtocol:
URI; - ExtraMiscJsonProtocol:
Config,DateTime,LocalDateandCurrency. It also includes the non-implicit methodsmapJsonArrayEncoder[K, V]andmapJsonArrayDecoder[K, V]which serialize and deserialize a map as an array of key-value objects.
The json package provides some implicits around circe's Json to unwrap JSON values, merge two Json and create Json from a sequence of dot-separated paths with the corresponding leaf values. It also provides methods to access and delete fields on the Json object. See the following for sample usage:
import com.kevel.apso.circe.Implicits._
import io.circe.syntax._
import io.circe.Json
"a".asJson
"2".asJson
val js1 = Json.obj(
"a" := 2,
"b" := 3,
"d" := Json.obj("f" := 6))
val js2 = Json.obj(
"c" := 4,
"d" := Json.obj("e" := 5))js1.deepMerge(js2).spaces2
// res56: String = """{
// "c" : 4,
// "d" : {
// "e" : 5,
// "f" : 6
// },
// "a" : 2,
// "b" : 3
// }"""
fromFullPaths(Seq(
"a" -> 1.asJson,
"b.c" -> 2.asJson,
"b.d" -> 3.asJson,
"e" -> "xpto".asJson,
"f.g.h" -> 5.asJson)).spaces2
// res57: String = """{
// "f" : {
// "g" : {
// "h" : 5
// }
// },
// "e" : "xpto",
// "b" : {
// "d" : 3,
// "c" : 2
// },
// "a" : 1
// }"""
js1.getField[Int]("a")
// res58: Option[Int] = Some(value = 2)
js1.getField[Int]("d.f")
// res59: Option[Int] = Some(value = 6)
js1.getField[Int]("x")
// res60: Option[Int] = None
js1.deleteField("a")
// res61: Json = JObject(
// value = object[b -> 3,d -> {
// "f" : 6
// }]
// )
js1.deleteField("d.f")
// res62: Json = JObject(
// value = object[a -> 2,b -> 3,d -> {
//
// }]
// )
js1.deleteField("x")
// res63: Json = JObject(
// value = object[a -> 2,b -> 3,d -> {
// "f" : 6
// }]
// )The JsonConvert object contains helpers for converting between JSON values and other structures. See the following for sample usage:
import com.kevel.apso.circe._
JsonConvert.toJson("abcd")
// res65: io.circe.Json = JString(value = "abcd")
JsonConvert.toJson(1)
// res66: io.circe.Json = JNumber(value = JsonLong(value = 1L))
JsonConvert.toJson(Map(1 -> 2, 3 -> 4))
// res67: io.circe.Json = JObject(value = object[1 -> 2,3 -> 4])The profiling module of apso provides utilities to help with profiling the running process.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-profiling" % "0.21.0"The CpuSampler is a lightweight configurable CPU profiler based on call stack sampling. When run as a thread, it periodically captures the call stacks of all live threads and maintains counters for each leaf method. The counters are then dumped to a logger with a given periodicity (most probably greater than the sampling period). Each data row written to the logger contains a timestamp, the method profiled, its location in the source code and the associated absolute counters and relative weight.
The SimpleJmx trait allows mixing in a simple JMX server. The JMX server is configured through a Config object, where the parameters host and port can be set. When behind a firewall, both the port defined (the RMI registry port) and the port + 1 port (the RMI server port) need to be open. In the event of a binding failure to the defined port, a retry is performed with a random port.
The apso-time module provides utilities to work with DateTime and LocalDate. It mainly adds support for better working with intervals.
To use it in an existing SBT project, add the following dependency to your build.sbt:
libraryDependencies += "com.kevel" %% "apso-time" % "0.21.0"See the following sample usages:
import com.github.nscala_time.time.Imports._
import com.kevel.apso.time._
import com.kevel.apso.time.Implicits._
(new DateTime("2012-01-01") to new DateTime("2012-01-01")).toList
// res69: List[DateTime] = List(2012-01-01T00:00:00.000Z)
(new DateTime("2012-02-01") until new DateTime("2012-03-01") by 1.day)
// res70: IterableInterval = IndexedSeq(
// 2012-02-01T00:00:00.000Z,
// 2012-02-02T00:00:00.000Z,
// 2012-02-03T00:00:00.000Z,
// 2012-02-04T00:00:00.000Z,
// 2012-02-05T00:00:00.000Z,
// 2012-02-06T00:00:00.000Z,
// 2012-02-07T00:00:00.000Z,
// 2012-02-08T00:00:00.000Z,
// 2012-02-09T00:00:00.000Z,
// 2012-02-10T00:00:00.000Z,
// 2012-02-11T00:00:00.000Z,
// 2012-02-12T00:00:00.000Z,
// 2012-02-13T00:00:00.000Z,
// 2012-02-14T00:00:00.000Z,
// 2012-02-15T00:00:00.000Z,
// 2012-02-16T00:00:00.000Z,
// 2012-02-17T00:00:00.000Z,
// 2012-02-18T00:00:00.000Z,
// 2012-02-19T00:00:00.000Z,
// 2012-02-20T00:00:00.000Z,
// 2012-02-21T00:00:00.000Z,
// 2012-02-22T00:00:00.000Z,
// 2012-02-23T00:00:00.000Z,
// 2012-02-24T00:00:00.000Z,
// 2012-02-25T00:00:00.000Z,
// 2012-02-26T00:00:00.000Z,
// 2012-02-27T00:00:00.000Z,
// 2012-02-28T00:00:00.000Z,
// 2012-02-29T00:00:00.000Z
// )
(new DateTime("2012-01-01") until new DateTime("2012-02-01") by 2.minutes)
// res71: IterableInterval = IndexedSeq(
// 2012-01-01T00:00:00.000Z,
// 2012-01-01T00:02:00.000Z,
// 2012-01-01T00:04:00.000Z,
// 2012-01-01T00:06:00.000Z,
// 2012-01-01T00:08:00.000Z,
// 2012-01-01T00:10:00.000Z,
// 2012-01-01T00:12:00.000Z,
// 2012-01-01T00:14:00.000Z,
// 2012-01-01T00:16:00.000Z,
// 2012-01-01T00:18:00.000Z,
// 2012-01-01T00:20:00.000Z,
// 2012-01-01T00:22:00.000Z,
// 2012-01-01T00:24:00.000Z,
// 2012-01-01T00:26:00.000Z,
// 2012-01-01T00:28:00.000Z,
// 2012-01-01T00:30:00.000Z,
// 2012-01-01T00:32:00.000Z,
// 2012-01-01T00:34:00.000Z,
// 2012-01-01T00:36:00.000Z,
// 2012-01-01T00:38:00.000Z,
// 2012-01-01T00:40:00.000Z,
// 2012-01-01T00:42:00.000Z,
// 2012-01-01T00:44:00.000Z,
// 2012-01-01T00:46:00.000Z,
// 2012-01-01T00:48:00.000Z,
// 2012-01-01T00:50:00.000Z,
// 2012-01-01T00:52:00.000Z,
// 2012-01-01T00:54:00.000Z,
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// ...Apso comes with a TestKit with extra useful matchers for specs2. The following traits with extra matchers are available:
CustomMatchers: provides a matcher to check if an object is serializable and one to check if a file exists;FutureExtraMatchers: provides extra matchers for futures and implicit conversions for awaitables;JreVersionTestHelper: provides a wrapper forAsResultto only run a spec if a specific JRE version is satisfied;