Generate html report with ScalaTest 3.0 - scala

Question

This question asks how to get an html report with sbt and ScalaTest. The answers reference Scala test 2.0 and do not appear to work for me with ScalaTest 3.0
I declare ScalaTest by
lazy val scalaTest = Seq("org.scalatest" %% "scalatest" % "3.0.8" % "test",
"org.scalactic" %% "scalactic" % "3.0.8",
"org.scalamock" %% "scalamock" % "4.4.0" % Test)
and then use it by
ThisBuild / Test / testOptions += Tests.Argument(TestFrameworks.ScalaTest, "-h", "target/test-reports")
and
lazy val foo = (project in file("foo")).
settings(libraryDependencies ++= scalaTest)
This fails with
[error] java.lang.NoClassDefFoundError: org/pegdown/PegDownProcessor
[error] at org.scalatest.tools.HtmlReporter.<init>(HtmlReporter.scala:117)
[error] at org.scalatest.tools.ReporterFactory.createHtmlReporter(ReporterFactory.scala:192)
[error] at org.scalatest.tools.ReporterFactory.getReporterFromConfiguration(ReporterFactory.scala:239)
[error] at org.scalatest.tools.ReporterFactory.$anonfun$createReportersFromConfigurations$1(ReporterFactory.scala:248)
[error] at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
[error] at scala.collection.Iterator.foreach(Iterator.scala:941)
[error] at scala.collection.Iterator.foreach$(Iterator.scala:941)
[error] at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
[error] at scala.collection.IterableLike.foreach(IterableLike.scala:74)
[error] at scala.collection.IterableLike.foreach$(IterableLike.scala:73)
[error] at org.scalatest.tools.ReporterConfigurations.foreach(ReporterConfiguration.scala:42)
...
The question suggests using "test->*" for the test declaration. Trying
lazy val scalaTest = Seq("org.scalatest" %% "scalatest" % "3.0.8" % "test->*" excludeAll (
ExclusionRule(organization="org.junit", name="junit")),
"org.scalamock" %% "scalamock" % "4.4.0" % Test
)
instead fails with
[info] Compiling 1 Scala source to /projects/foo/target/scala-2.12/test-classes ...
[error] /projects/foo/src/test/scala/com/example/FooTest.scala:17:73: Symbol 'type org.scalactic.TripleEquals' is missing from the classpath.
[error] This symbol is required by 'trait org.scalatest.Assertions'.
[error] Make sure that type TripleEquals is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
[error] A full rebuild may help if 'Assertions.class' was compiled against an incompatible version of org.scalactic.
[error] class InfoGainTest extends FlatSpec with Matchers with LoneElement with LazyLogging {
[error] ^
[error] /projects/foo/src/test/scala/com/example/FooTest.scala:17:42: Symbol 'type org.scalactic.Tolerance' is missing from the classpath.
[error] This symbol is required by 'trait org.scalatest.Matchers'.
[error] Make sure that type Tolerance is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
[error] A full rebuild may help if 'Matchers.class' was compiled against an incompatible version of org.scalactic.
[error] class InfoGainTest extends FlatSpec with Matchers with LoneElement with LazyLogging {
[error] ^
[error] /projects/foo/src/test/scala/com/example/FooTest.scala:22:54: Symbol 'term org.scalactic.source' is missing from the classpath.
[error] This symbol is required by 'value org.scalatest.Matchers.pos'.
[error] Make sure that term source is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
[error] A full rebuild may help if 'Matchers.class' was compiled against an incompatible version of org.scalactic.
[error] def printGain(gainByProbe: Map[Probe, Double]) = logger.info("Info gain: {}",
[error] ^
[error] /projects/foo/src/test/scala/com/example/FooTest.scala:27:17: value should is not a member of String
followed by errors that look like the implicit conversions for FlatSpec are not present and are probably follow-on errors from the above.
Is there a way to do this with ScalaTest 3.0?

Answer 1

Try adding pegdown dependency like so
libraryDependencies += "org.pegdown" % "pegdown" % "1.6.0" % Test
Note in ScalaTest 3.1.x pegdown is replaced with flexmark-java as per resolve #1201 replace pegdown with flexmark-java #1229