From d51057db4f8ecc1a0c272801e2bfe8aa5fb685a5 Mon Sep 17 00:00:00 2001
From: Adrien Piquerez <adrien.piquerez@gmail.com>
Date: Thu, 22 Oct 2020 12:22:01 +0200
Subject: [PATCH] Add tests on sourcePositionMappers

---
 .../sbt-test/reporter/source-mapper/build.sbt | 46 +++++++++++++++++++
 .../source-mapper/src/main/scala/Foo.scala    |  0
 sbt/src/sbt-test/reporter/source-mapper/test  |  2 +
 3 files changed, 48 insertions(+)
 create mode 100644 sbt/src/sbt-test/reporter/source-mapper/build.sbt
 create mode 100644 sbt/src/sbt-test/reporter/source-mapper/src/main/scala/Foo.scala
 create mode 100644 sbt/src/sbt-test/reporter/source-mapper/test

diff --git a/sbt/src/sbt-test/reporter/source-mapper/build.sbt b/sbt/src/sbt-test/reporter/source-mapper/build.sbt
new file mode 100644
index 000000000..3ca4753ed
--- /dev/null
+++ b/sbt/src/sbt-test/reporter/source-mapper/build.sbt
@@ -0,0 +1,46 @@
+import java.util.Optional
+import xsbti.Position
+
+val assertAbsolutePathConversion = taskKey[Unit]("checks source mappers convert to absolute path")
+
+val assertHandleFakePos = taskKey[Unit]("checks source mappers handle fake position")
+
+assertAbsolutePathConversion := {
+  val converter = fileConverter.value
+  val source = (Compile/sources).value.head
+  val position = newPosition(converter.toVirtualFile(source.toPath).id, source)
+  val mappedPos = sourcePositionMappers.value
+    .foldLeft(Option(position)) {
+      case (pos, mapper) => pos.flatMap(mapper)
+    }
+  assert {
+    mappedPos.get.sourcePath.asScala.contains(source.getAbsolutePath)
+  }
+}
+
+assertHandleFakePos := {
+  val position = newPosition("<macro>", new File("<macro>"))
+  val mappedPos = sourcePositionMappers.value
+    .foldLeft(Option(position)) {
+      case (pos, mapper) => pos.flatMap(mapper)
+    }
+  assert {
+    mappedPos.get.sourcePath.asScala.get.contains("<macro>")
+  }
+}
+
+def newPosition(path: String, file: File): Position = new Position {
+  override def line(): Optional[Integer] = Optional.empty()
+
+  override def lineContent() = ""
+
+  override def offset(): Optional[Integer] = Optional.empty()
+
+  override def pointer(): Optional[Integer] = Optional.empty()
+
+  override def pointerSpace(): Optional[String] = Optional.empty()
+
+  override def sourcePath(): Optional[String] = Optional.of(path)
+
+  override def sourceFile(): Optional[File] = Optional.of(file)
+}
\ No newline at end of file
diff --git a/sbt/src/sbt-test/reporter/source-mapper/src/main/scala/Foo.scala b/sbt/src/sbt-test/reporter/source-mapper/src/main/scala/Foo.scala
new file mode 100644
index 000000000..e69de29bb
diff --git a/sbt/src/sbt-test/reporter/source-mapper/test b/sbt/src/sbt-test/reporter/source-mapper/test
new file mode 100644
index 000000000..ced01bedc
--- /dev/null
+++ b/sbt/src/sbt-test/reporter/source-mapper/test
@@ -0,0 +1,2 @@
+> assertAbsolutePathConversion
+> assertHandleFakePos
\ No newline at end of file