1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/scala/firrtlTests/IntegrationSpec.scala b/src/test/scala/firrtlTests/IntegrationSpec.scala
index 335922bd..52fbb611 100644
--- a/src/test/scala/firrtlTests/IntegrationSpec.scala
+++ b/src/test/scala/firrtlTests/IntegrationSpec.scala
@@ -2,13 +2,51 @@
 
 package firrtlTests
 
+import firrtl._
 import org.scalatest._
 import org.scalatest.prop._
 
+import java.io.File
+
 class GCDExecutionTest extends ExecutionTest("GCDTester", "/integration")
 class RightShiftExecutionTest extends ExecutionTest("RightShiftTester", "/integration")
 class MemExecutionTest extends ExecutionTest("MemTester", "/integration")
 
+// This is a bit custom some kind of one off
+class GCDSplitEmissionExecutionTest extends FirrtlFlatSpec {
+  "GCDTester" should "work even when the modules are emitted to different files" in {
+    val top = "GCDTester"
+    val testDir = createTestDirectory("GCDTesterSplitEmission")
+    val sourceFile = new File(testDir, s"$top.fir")
+    copyResourceToFile(s"/integration/$top.fir", sourceFile)
+
+    val optionsManager = new ExecutionOptionsManager("GCDTesterSplitEmission") with HasFirrtlOptions {
+      commonOptions = CommonOptions(topName = top, targetDirName = testDir.getPath)
+      firrtlOptions = FirrtlExecutionOptions(
+                        inputFileNameOverride = sourceFile.getPath,
+                        compilerName = "verilog",
+                        infoModeName = "ignore",
+                        emitOneFilePerModule = true)
+    }
+    firrtl.Driver.execute(optionsManager)
+
+    // expected filenames
+    val dutFile = new File(testDir, "DecoupledGCD.v")
+    val topFile = new File(testDir, s"$top.v")
+    dutFile should exist
+    topFile should exist
+
+    // Copy harness over
+    val harness = new File(testDir, s"top.cpp")
+    copyResourceToFile(cppHarness.toString, harness)
+
+    // topFile will be compiled by Verilator command by default but we need to also include dutFile
+    verilogToCpp(top, testDir, Seq(dutFile), harness).!
+    cppToExe(top, testDir).!
+    assert(executeExpectingSuccess(top, testDir))
+  }
+}
+
 class RocketCompilationTest extends CompilationTest("rocket", "/regress")
 class RocketFirrtlCompilationTest extends CompilationTest("rocket-firrtl", "/regress")
 class BOOMRobCompilationTest extends CompilationTest("Rob", "/regress")