Add InlineBytecodeTests to check that inline really works

1 files changed, 32 insertions, 0 deletions

diff --git a/test/test/InlineBytecodeTests.scala b/test/test/InlineBytecodeTests.scala
new file mode 100644
index 000000000..f7dc35305
--- /dev/null
+++ b/test/test/InlineBytecodeTests.scala
@@ -0,0 +1,32 @@
+package test
+
+import org.junit.Assert._
+import org.junit.Test
+
+class InlineBytecodeTests extends DottyBytecodeTest {
+  import ASMConverters._
+  @Test def inlineUnit = {
+    val source = """
+                 |class Foo {
+                 |  inline def foo: Int = 1
+                 |
+                 |  def meth1: Unit = foo
+                 |  def meth2: Unit = 1
+                 |}
+                 """.stripMargin
+
+    checkBCode(source) { dir =>
+      val clsIn      = dir.lookupName("Foo.class", directory = false).input
+      val clsNode    = loadClassNode(clsIn)
+      val meth1       = getMethod(clsNode, "meth1")
+      val meth2       = getMethod(clsNode, "meth2")
+
+      val instructions1 = instructionsFromMethod(meth1)
+      val instructions2 = instructionsFromMethod(meth2)
+
+      assert(instructions1 == instructions2,
+        "`foo` was not properly inlined in `meth1`\n" +
+        diffInstructions(instructions1, instructions2))
+    }
+  }
+}