Added a simple acceptance test

indigo-plugin/indigo-plugin/test/src/indigoplugin/core/AcceptanceTests.scala

@@ -0,0 +1,34 @@
+package indigoplugin.core
+
+import indigoplugin.IndigoAssets
+
+class AcceptanceTests extends munit.FunSuite {
+
+  val sourceDir = os.RelPath("test-assets")
+
+  val targetDir = os.pwd / "out" / "indigo-plugin-acceptance-test-output"
+
+  override def beforeAll(): Unit = {
+    if (os.exists(targetDir)) {
+      os.remove(target = targetDir, checkExists = true)
+    }
+
+    os.makeDir.all(targetDir)
+  }
+
+  val indigoAssets =
+    IndigoAssets(
+      gameAssetsDirectory = sourceDir,
+      include = { case _ => false },
+      exclude = { case _ => false }
+    )
+
+  test("Copy assets and assert expected output files") {
+
+    IndigoBuild.copyAssets(indigoAssets, targetDir)
+
+    assert(os.exists(targetDir))
+    assert(os.exists(targetDir / "foo.txt"))
+  }
+
+}

indigo-plugin/test-assets/foo.txt

@@ -0,0 +1 @@
+Hello, world!