Add bitcoin-s unit test class, all unit tests going forward should extend this (#335)

build.sbt

@@ -40,7 +40,11 @@ lazy val commonSettings = List(
 
   scalacOptions in Test := testCompilerOpts,
 
-  testOptions in Test += Tests.Argument("-oF"),
+  //show full stack trace of failed tests
+  testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oF"),
+
+  //show duration of tests
+  testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oD"),
 
   assemblyOption in assembly := (assemblyOption in assembly).value
     .copy(includeScala = false),
@@ -127,36 +131,33 @@ lazy val secp256k1jni = project
 
 lazy val core = project
   .in(file("core"))
-  .enablePlugins()
   .settings(commonSettings: _*)
   .dependsOn(
     secp256k1jni
-  )
+  ).enablePlugins()
 
 lazy val coreTest = project
   .in(file("core-test"))
-  .enablePlugins()
   .settings(commonSettings: _*)
   .settings(skip in publish := true)
   .dependsOn(
     core,
-  )
+  ).enablePlugins()
 
 lazy val zmq = project
   .in(file("zmq"))
-  .enablePlugins()
   .settings(commonSettings: _*)
   .dependsOn(
     core
-  )
+  ).enablePlugins()
 
 lazy val rpc = project
   .in(file("rpc"))
-  .enablePlugins()
+
   .settings(commonSettings: _*)
   .dependsOn(
     core
-  )
+  ).enablePlugins()
 
 lazy val bench = project
   .in(file("bench"))

core-test/src/test/scala/org/bitcoins/core/protocol/ln/LnInvoiceUnitUnitTest.scala

@@ -3,31 +3,18 @@ package org.bitcoins.core.protocol.ln
 import org.bitcoins.core.crypto._
 import org.bitcoins.core.gen.ln.LnInvoiceGen
 import org.bitcoins.core.number.{UInt32, UInt64, UInt8}
-import org.bitcoins.core.protocol.ln.LnParams.{
-  LnBitcoinMainNet,
-  LnBitcoinTestNet
-}
-import org.bitcoins.core.protocol.ln.currency.{
-  MicroBitcoins,
-  MilliBitcoins,
-  MilliSatoshis
-}
-import org.bitcoins.core.protocol.ln.fee.{
-  FeeBaseMSat,
-  FeeProportionalMillionths
-}
+import org.bitcoins.core.protocol.ln.LnParams.{LnBitcoinMainNet, LnBitcoinTestNet}
+import org.bitcoins.core.protocol.ln.currency.{MicroBitcoins, MilliBitcoins, MilliSatoshis}
+import org.bitcoins.core.protocol.ln.fee.{FeeBaseMSat, FeeProportionalMillionths}
 import org.bitcoins.core.protocol.ln.routing.LnRoute
 import org.bitcoins.core.protocol.{Bech32Address, P2PKHAddress, P2SHAddress}
-import org.bitcoins.core.util.CryptoUtil
-import org.scalatest.prop.PropertyChecks
-import org.scalatest.{FlatSpec, MustMatchers}
-import org.slf4j.LoggerFactory
+import org.bitcoins.core.util.{BitcoinSUnitTest, CryptoUtil}
 import scodec.bits.ByteVector
 
-class LnInvoiceUnitTest extends FlatSpec with MustMatchers with PropertyChecks {
+class LnInvoiceUnitTest extends BitcoinSUnitTest {
   behavior of "LnInvoice"
 
-  private val logger = LoggerFactory.getLogger(getClass)
+  override implicit val generatorDrivenConfig: PropertyCheckConfiguration = generatorDrivenConfigNewCode
 
   val hrpEmpty = LnHumanReadablePart(LnBitcoinMainNet)
 
@@ -449,4 +436,5 @@ class LnInvoiceUnitTest extends FlatSpec with MustMatchers with PropertyChecks {
 
     invoice.nodeId.hex must be(expected)
   }
+
 }

core-test/src/test/scala/org/bitcoins/core/util/BitcoinSUnitTest.scala

@@ -0,0 +1,57 @@
+package org.bitcoins.core.util
+
+import org.scalatest.prop.PropertyChecks
+import org.scalatest.{FlatSpec, MustMatchers}
+import org.slf4j.LoggerFactory
+
+/** A wrapper for boiler plate testing procesures in bitcoin-s */
+abstract class BitcoinSUnitTest extends FlatSpec with MustMatchers with PropertyChecks {
+
+  lazy val logger = LoggerFactory.getLogger(getClass)
+
+  /** The configuration for property based tests in our testing suite
+    * See: http://www.scalatest.org/user_guide/writing_scalacheck_style_properties
+    */
+  override implicit val generatorDrivenConfig: PropertyCheckConfiguration = {
+    generatorDriveConfigOldCode
+  }
+
+  private def buildConfig(executions: Int): PropertyCheckConfiguration = {
+    PropertyCheckConfig(
+      minSuccessful = executions,
+      minSize = executions,
+      maxSize = executions
+    )
+  }
+
+  /** Property based tests that have been around a long time
+    * have a less of a chance failing, so execute them less
+    * @return
+    */
+  def generatorDriveConfigOldCode: PropertyCheckConfiguration = {
+    buildConfig(BitcoinSUnitTest.OLD_CODE_EXECUTIONS)
+  }
+
+  /** Property based tests that are new have a higher chance of failing
+    * so execute them more
+    * @return
+    */
+  def generatorDrivenConfigNewCode: PropertyCheckConfiguration = {
+    buildConfig(BitcoinSUnitTest.NEW_CODE_EXECUTIONS)
+  }
+
+}
+
+object BitcoinSUnitTest {
+
+  /** The number of times new code
+    * should be executed in a property based test
+    */
+  val NEW_CODE_EXECUTIONS = 100
+
+  /** The number of times old code should be executed
+    * in a property based test
+    */
+  val OLD_CODE_EXECUTIONS = 20
+
+}