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package mill.eval
import mill.define.{Discover, Input, Target, Task}
import mill.modules.Jvm
import mill.modules.Jvm.JarManifest
import mill.api.Ctx.Dest
import mill.{Module, T}
import mill.util.{DummyLogger, TestEvaluator, TestUtil}
import mill.api.Strict.Agg
import mill.api.Loose
import utest._
import mill._
object JavaCompileJarTests extends TestSuite{
def compileAll(sources: mill.api.Loose.Agg[PathRef])(implicit ctx: Dest) = {
os.makeDir.all(ctx.dest)
os.proc("javac", sources.map(_.path.toString()).toSeq, "-d", ctx.dest).call(ctx.dest)
PathRef(ctx.dest)
}
val tests = Tests{
'javac {
val javacSrcPath = os.pwd / 'main / 'test / 'resources / 'examples / 'javac
val javacDestPath = TestUtil.getOutPath() / 'src
os.makeDir.all(javacDestPath / os.up)
os.copy(javacSrcPath, javacDestPath)
object Build extends TestUtil.BaseModule{
def sourceRootPath = javacDestPath / 'src
def resourceRootPath = javacDestPath / 'resources
// sourceRoot -> allSources -> classFiles
// |
// v
// resourceRoot ----> jar
def sourceRoot = T.sources{ sourceRootPath }
def resourceRoot = T.sources{ resourceRootPath }
def allSources = T{ sourceRoot().flatMap(p => os.walk(p.path)).map(PathRef(_)) }
def classFiles = T{ compileAll(allSources()) }
def jar = T{ Jvm.createJar(Loose.Agg(classFiles().path) ++ resourceRoot().map(_.path)) }
// Test createJar() with optional file filter.
def filterJar(fileFilter: (os.Path, os.RelPath) => Boolean) = T{ Jvm.createJar(Loose.Agg(classFiles().path) ++ resourceRoot().map(_.path), JarManifest.Default, fileFilter) }
def run(mainClsName: String) = T.command{
os.proc('java, "-Duser.language=en", "-cp", classFiles().path, mainClsName).call()
}
}
import Build._
var evaluator = new TestEvaluator(Build)
def eval[T](t: Task[T]) = {
evaluator.apply(t)
}
def check(targets: Agg[Task[_]], expected: Agg[Task[_]]) = {
evaluator.check(targets, expected)
}
def append(path: os.Path, txt: String) = ammonite.ops.write.append(path, txt)
check(
targets = Agg(jar),
expected = Agg(allSources, classFiles, jar)
)
// Re-running with no changes results in nothing being evaluated
check(targets = Agg(jar), expected = Agg())
// Appending an empty string gets ignored due to file-content hashing
append(sourceRootPath / "Foo.java", "")
check(targets = Agg(jar), expected = Agg())
// Appending whitespace forces a recompile, but the classfilesend up
// exactly the same so no re-jarring.
append(sourceRootPath / "Foo.java", " ")
// Note that `sourceRoot` and `resourceRoot` never turn up in the `expected`
// list, because they are `Source`s not `Target`s
check(targets = Agg(jar), expected = Agg(/*sourceRoot, */allSources, classFiles))
// Appending a new class changes the classfiles, which forces us to
// re-create the final jar
append(sourceRootPath / "Foo.java", "\nclass FooTwo{}")
check(targets = Agg(jar), expected = Agg(allSources, classFiles, jar))
// Tweaking the resources forces rebuild of the final jar, without
// recompiling classfiles
append(resourceRootPath / "hello.txt", " ")
check(targets = Agg(jar), expected = Agg(jar))
// You can swap evaluators halfway without any ill effects
evaluator = new TestEvaluator(Build)
// Asking for an intermediate target forces things to be build up to that
// target only; these are re-used for any downstream targets requested
append(sourceRootPath / "Bar.java", "\nclass BarTwo{}")
append(resourceRootPath / "hello.txt", " ")
check(targets = Agg(classFiles), expected = Agg(allSources, classFiles))
check(targets = Agg(jar), expected = Agg(jar))
check(targets = Agg(allSources), expected = Agg())
append(sourceRootPath / "Bar.java", "\nclass BarThree{}")
append(resourceRootPath / "hello.txt", " ")
check(targets = Agg(resourceRoot), expected = Agg())
check(targets = Agg(allSources), expected = Agg(allSources))
check(targets = Agg(jar), expected = Agg(classFiles, jar))
val jarContents = os.proc('jar, "-tf", evaluator.outPath/'jar/'dest/"out.jar").call(evaluator.outPath).out.string
val expectedJarContents =
"""META-INF/MANIFEST.MF
|test/Bar.class
|test/BarThree.class
|test/BarTwo.class
|test/Foo.class
|test/FooTwo.class
|hello.txt
|""".stripMargin
assert(jarContents.linesIterator.toSeq == expectedJarContents.linesIterator.toSeq)
// Create the Jar again, but this time, filter out the Foo files.
def noFoos(s: String) = !s.contains("Foo")
val filterFunc = (p: os.Path, r: os.RelPath) => noFoos(r.last)
eval(filterJar(filterFunc))
val filteredJarContents = os.proc('jar, "-tf", evaluator.outPath/'filterJar/'dest/"out.jar").call(evaluator.outPath).out.string
assert(filteredJarContents.linesIterator.toSeq == expectedJarContents.linesIterator.filter(noFoos(_)).toSeq)
val executed = os.proc('java, "-cp", evaluator.outPath/'jar/'dest/"out.jar", "test.Foo").call(evaluator.outPath).out.string
assert(executed == (31337 + 271828) + System.lineSeparator)
for(i <- 0 until 3){
// Build.run is not cached, so every time we eval it it has to
// re-evaluate
val Right((runOutput, evalCount)) = eval(Build.run("test.Foo"))
assert(
runOutput.out.string == (31337 + 271828) + System.lineSeparator,
evalCount == 1
)
}
val Left(Result.Exception(ex, _)) = eval(Build.run("test.BarFour"))
assert(ex.getMessage.contains("Could not find or load main class"))
append(
sourceRootPath / "Bar.java",
"""
class BarFour{
public static void main(String[] args){
System.out.println("New Cls!");
}
}
"""
)
val Right((runOutput2, evalCount2)) = eval(Build.run("test.BarFour"))
assert(
runOutput2.out.string == "New Cls!" + System.lineSeparator,
evalCount2 == 3
)
val Right((runOutput3, evalCount3)) = eval(Build.run("test.BarFour"))
assert(
runOutput3.out.string == "New Cls!" + System.lineSeparator,
evalCount3 == 1
)
}
}
}
|
