1 files changed, 43 insertions, 0 deletions
diff --git a/src/test/scala/firrtlTests/features/LetterCaseTransformSpec.scala b/src/test/scala/firrtlTests/features/LetterCaseTransformSpec.scala
new file mode 100644
index 00000000..93576578
--- /dev/null
+++ b/src/test/scala/firrtlTests/features/LetterCaseTransformSpec.scala
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+// See LICENSE for license details.
+
+package firrtlTests.features
+
+import firrtl.features.{LowerCaseNames, UpperCaseNames}
+
+import firrtl.{CircuitState, Parser}
+import firrtl.annotations.CircuitTarget
+
+import org.scalatest.flatspec.AnyFlatSpec
+import org.scalatest.matchers.should.Matchers
+
+class LetterCaseTransformSpec extends AnyFlatSpec with Matchers {
+
+  class CircuitFixture {
+    private val input =
+      """|circuit Foo:
+         |  module Foo:
+         |    node Bar = UInt<1>(0)
+         |    node baz = UInt<1>(0)
+         |    node QUX = UInt<1>(0)
+         |    node quuxQuux = UInt<1>(0)
+         |    node QuuzQuuz = UInt<1>(0)
+         |    node corge_corge = UInt<1>(0)
+         |""".stripMargin
+    val state = CircuitState(Parser.parse(input), Seq.empty)
+  }
+
+  behavior of "LowerCaseNames"
+
+  it should "change all names to lowercase" in new CircuitFixture {
+    val string = (new LowerCaseNames).execute(state).circuit.serialize
+    List("foo", "bar", "baz", "qux", "quuxquux", "quuzquuz", "corge_corge").foreach(string should include (_))
+  }
+
+  behavior of "UpperCaseNames"
+
+  it should "change all names to uppercase" in new CircuitFixture {
+    val string = (new UpperCaseNames).execute(state).circuit.serialize
+    List("FOO", "BAR", "BAZ", "QUX", "QUUXQUUX", "QUUZQUUZ", "CORGE_CORGE").foreach(string should include (_))
+  }
+
+}