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/* =========================================================================================
* Copyright © 2013-2017 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.trace
import kamon.trace.IdentityProvider.Identifier
import org.scalatest.{Matchers, OptionValues, WordSpecLike}
import org.scalactic.TimesOnInt._
class DefaultIdentityGeneratorSpec extends WordSpecLike with Matchers with OptionValues {
val idProvider = IdentityProvider.Default()
val traceGenerator = idProvider.traceIdGenerator()
val spanGenerator = idProvider.spanIdGenerator()
validateGenerator("TraceID Generator", traceGenerator)
validateGenerator("SpanID Generator", spanGenerator)
def validateGenerator(generatorName: String, generator: IdentityProvider.Generator) = {
s"The $generatorName" should {
"generate random longs (8 byte) identifiers" in {
100 times {
val Identifier(string, bytes) = generator.generate()
string.length should be(16)
bytes.length should be(8)
}
}
"decode the string representation back into a identifier" in {
100 times {
val identifier = generator.generate()
val decodedIdentifier = generator.from(identifier.string)
identifier.string should equal(decodedIdentifier.string)
identifier.bytes should equal(decodedIdentifier.bytes)
}
}
"decode the bytes representation back into a identifier" in {
100 times {
val identifier = generator.generate()
val decodedIdentifier = generator.from(identifier.bytes)
identifier.string should equal(decodedIdentifier.string)
identifier.bytes should equal(decodedIdentifier.bytes)
}
}
"return IdentityProvider.NoIdentifier if the provided input cannot be decoded into a Identifier" in {
generator.from("zzzz") shouldBe(IdentityProvider.NoIdentifier)
generator.from(Array[Byte](1)) shouldBe(IdentityProvider.NoIdentifier)
}
}
}
}
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