1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/scala/firrtl/transforms/EnsureNamedStatementsSpec.scala b/src/test/scala/firrtl/transforms/EnsureNamedStatementsSpec.scala
new file mode 100644
index 00000000..4c993994
--- /dev/null
+++ b/src/test/scala/firrtl/transforms/EnsureNamedStatementsSpec.scala
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: Apache-2.0
+
+package firrtl.transforms
+
+import firrtl.options.Dependency
+import firrtl.testutils.LeanTransformSpec
+
+class EnsureNamedStatementsSpec extends LeanTransformSpec(Seq(Dependency(EnsureNamedStatements))) {
+  behavior.of("EnsureNamedStatements")
+
+  it should "automatically name statements that do not have a name yet" in {
+    val src = """circuit test :
+                |  module test :
+                |    input clock : Clock
+                |    input stop_ : UInt<1>
+                |    assert(clock, UInt(1), not(UInt(0)), "")
+                |    stop(clock, UInt(1), 1) : stop_123
+                |    stop(clock, UInt(1), 1)
+                |    assert(clock, UInt(0), UInt(0), "")
+                |    assume(clock, UInt(0), UInt(0), "")
+                |    cover(clock, UInt(0), UInt(0), "")
+                |    cover(clock, UInt(0), UInt(0), "")
+                |
+                |""".stripMargin
+
+    val result = compile(src, List()).circuit.serialize.split('\n').map(_.trim)
+
+    val expected = List(
+      """assert(clock, UInt<1>("h1"), not(UInt<1>("h0")), "") : assert_0""",
+      """stop(clock, UInt<1>("h1"), 1) : stop_123""",
+      """stop(clock, UInt<1>("h1"), 1) : stop_0""",
+      """assert(clock, UInt<1>("h0"), UInt<1>("h0"), "") : assert_1""",
+      """assume(clock, UInt<1>("h0"), UInt<1>("h0"), "") : assume_0""",
+      """cover(clock, UInt<1>("h0"), UInt<1>("h0"), "") : cover_0""",
+      """cover(clock, UInt<1>("h0"), UInt<1>("h0"), "") : cover_1"""
+    )
+    expected.foreach(e => assert(result.contains(e)))
+  }
+}