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package mill.scalalib.scalafmt
import mill.main.Tasks
import mill.scalalib.ScalaModule
import mill.util.{TestEvaluator, TestUtil}
import utest._
import utest.framework.TestPath
object ScalafmtTests extends TestSuite {
trait TestBase extends TestUtil.BaseModule {
def millSourcePath =
TestUtil.getSrcPathBase() / millOuterCtx.enclosing.split('.')
}
object ScalafmtTestModule extends TestBase {
object core extends ScalaModule with ScalafmtModule {
def scalaVersion = "2.12.4"
}
}
val resourcePath = os.pwd / 'scalalib / 'test / 'resources / 'scalafmt
def workspaceTest[T](
m: TestUtil.BaseModule,
resourcePath: os.Path = resourcePath)(t: TestEvaluator => T)(
implicit tp: TestPath): T = {
val eval = new TestEvaluator(m)
os.remove.all(m.millSourcePath)
os.remove.all(eval.outPath)
os.makeDir.all(m.millSourcePath / os.up)
os.copy(resourcePath, m.millSourcePath)
t(eval)
}
def tests: Tests = Tests {
'scalafmt - {
def checkReformat(reformatCommand: mill.define.Command[Unit]) =
workspaceTest(ScalafmtTestModule) { eval =>
val before = getProjectFiles(ScalafmtTestModule.core, eval)
// first reformat
val Right(_) = eval.apply(reformatCommand)
val firstReformat = getProjectFiles(ScalafmtTestModule.core, eval)
assert(
firstReformat("Main.scala").modifyTime > before("Main.scala").modifyTime,
firstReformat("Main.scala").content != before("Main.scala").content,
firstReformat("Person.scala").modifyTime > before("Person.scala").modifyTime,
firstReformat("Person.scala").content != before("Person.scala").content,
// resources files aren't modified
firstReformat("application.conf").modifyTime == before(
"application.conf").modifyTime
)
// cached reformat
val Right(_) = eval.apply(reformatCommand)
val cached = getProjectFiles(ScalafmtTestModule.core, eval)
assert(
cached("Main.scala").modifyTime == firstReformat("Main.scala").modifyTime,
cached("Person.scala").modifyTime == firstReformat("Person.scala").modifyTime,
cached("application.conf").modifyTime == firstReformat(
"application.conf").modifyTime
)
// reformat after change
os.write.over(cached("Main.scala").path,
cached("Main.scala").content + "\n object Foo")
val Right(_) = eval.apply(reformatCommand)
val afterChange = getProjectFiles(ScalafmtTestModule.core, eval)
assert(
afterChange("Main.scala").modifyTime > cached("Main.scala").modifyTime,
afterChange("Person.scala").modifyTime == cached("Person.scala").modifyTime,
afterChange("application.conf").modifyTime == cached(
"application.conf").modifyTime
)
}
'reformat - checkReformat(ScalafmtTestModule.core.reformat())
'reformatAll - checkReformat(
ScalafmtModule.reformatAll(Tasks(Seq(ScalafmtTestModule.core.sources))))
}
}
case class FileInfo(content: String, modifyTime: Long, path: os.Path)
def getProjectFiles(m: ScalaModule, eval: TestEvaluator) = {
val Right((sources, _)) = eval.apply(m.sources)
val Right((resources, _)) = eval.apply(m.resources)
val sourcesFiles = sources.flatMap(p => os.walk(p.path))
val resourcesFiles = resources.flatMap(p => os.walk(p.path))
(sourcesFiles ++ resourcesFiles).map { p =>
p.last -> FileInfo(os.read(p), os.mtime(p), p)
}.toMap
}
}
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