Remove scoverage for now

The `coverageEnabled := true` in `build.sbt` instruments the code unconditionally.
The right way to enable coverage is to do

`sbt clean coverageOn test coverageReport coverageAggregate`

Also it is important to do `sbt clean` after doing the coverage, otherwise the code
stay instrumented.

The problems to figure out:

1. when instrumented code is included into jar this jar doesn't work on another machine
2. apparently the `sbt clean` is not sufficient and the `target` directories for each
subproject need to be removed
3. setting `coverageEnabled := false` and trying to issue `sbt clean coverageOn ...`
doesn't produce report files
4. when `sbt ... coverageOn test` is used junit xml test report is not generated
5. we should run eunit tests using coverage as well
```
sbt clean coverageOn
make all-tests
sbt coverageReport coverageAggregate
```
6. we need to include mango tests into all-tests target

See following

- scoverage/sbt-scoverage#84
- scoverage/sbt-scoverage#228
- scoverage/sbt-scoverage#306
- https://github.com/viktortnk/kafka-storm-starter/blob/de6eac4ae635e0e54981a92555de05071c14518a/README.md?plain=1#L340C1-L342C58
- https://github.com/Facsimile/facsimile/blob/409dd67fd291161414401c97d128bf65c0fcc30f/Facsimile.sbt#L458

Author: iilyak

Makefile

@@ -134,10 +134,7 @@ all-tests: test zeunit
 
 .PHONY: test
 # target: test - Run all Scala tests
-# coverage is commented out due to conflict in dependencies it can be enabled
-# when we update zio-config
 test: build $(ARTIFACTS_DIR)
-	@#sbt clean coverage test
 	@sbt clean test
 	@$(call to_artifacts,test-reports)
 
@@ -159,17 +156,6 @@ check-deps: build $(ARTIFACTS_DIR)
 	@find .
 	@$(call to_artifacts,dependency-check-report.*)
 
-.PHONY: cover
-# target: cover - Generate code coverage report, options: TEST=<sub-project>
-cover: build
-ifeq ($(TEST),)
-	@sbt coverage +test +coverageReport +coverageAggregate
-	@open target/scala-$(SCALA_SHORT_VERSION)/scoverage-report/index.html
-else
-	@sbt coverage +${TEST}/test +${TEST}/coverageReport
-	@open ${TEST}/target/scala-$(SCALA_SHORT_VERSION)/scoverage-report/index.html
-endif
-
 .PHONY: meta
 meta: build $(ARTIFACTS_DIR)
 	@sbt makeBom

build.sbt

@@ -72,7 +72,6 @@ lazy val commonSettings = Seq(
     if (sys.props.getOrElse("jartest", "false").toBoolean) (Test / fullClasspath).value else Seq()
   ),
   assemblyPackageScala / assembleArtifact := false,
-  coverageEnabled                         := true,
   testFrameworks                          := Seq(new TestFramework("com.novocode.junit.JUnitFramework")),
   dependencyCheckAssemblyAnalyzerEnabled  := Some(false),
   dependencyCheckFormats                  := Seq("XML", "JSON"),

core/src/test/scala/com/cloudant/ziose/core/RegistrySpec.scala

@@ -1,8 +1,3 @@
-/*
- * $ sbt coverage "testOnly com.cloudant.ziose.core.RegistrySpec"
- * $ sbt coverageReport "testOnly com.cloudant.ziose.core.RegistrySpec"
- * $ open core/target/scala-2.13/scoverage-report/index.html
- */
 package com.cloudant.ziose.core
 
 import org.junit.runner.RunWith

project/plugins.sbt

@@ -4,5 +4,4 @@ addSbtPlugin("com.eed3si9n"      % "sbt-buildinfo"        % "0.11.0")
 addSbtPlugin("io.github.siculo" %% "sbt-bom"              % "0.3.0")
 addSbtPlugin("net.vonbuchholtz"  % "sbt-dependency-check" % "5.1.0")
 addSbtPlugin("org.scalameta"     % "sbt-scalafmt"         % "2.5.2")
-addSbtPlugin("org.scoverage"     % "sbt-scoverage"        % "2.0.9")
 //addSbtPlugin("uk.co.josephearl"  % "sbt-findbugs"         % "2.0.0")