Test FIRRTL string literals more aggressively

1 files changed, 8 insertions, 0 deletions

diff --git a/src/test/scala/chiselTests/Printf.scala b/src/test/scala/chiselTests/Printf.scala
index 950f315a..eb8b4b25 100644
--- a/src/test/scala/chiselTests/Printf.scala
+++ b/src/test/scala/chiselTests/Printf.scala
@@ -12,6 +12,11 @@ class SinglePrintfTester() extends BasicTester {
   stop()
 }
 
+class ASCIIPrintfTester() extends BasicTester {
+  printf((0x20 to 0x7e).map(_ toChar).mkString.replace("%", "%%"))
+  stop()
+}
+
 class MultiPrintfTester() extends BasicTester {
   val x = UInt(254)
   val y = UInt(255)
@@ -26,4 +31,7 @@ class PrintfSpec extends ChiselFlatSpec {
   "A printf with multiple arguments" should "run" in {
     assertTesterPasses { new MultiPrintfTester }
   }
+  "A printf with ASCII characters 1-127" should "run" in {
+    assertTesterPasses { new ASCIIPrintfTester }
+  }
 }