diff --git a/tests/Dialect/mhlo/ops.mlir b/tests/Dialect/mhlo/ops.mlir
index d07a178c6..16a64cdc2 100644
--- a/tests/Dialect/mhlo/ops.mlir
+++ b/tests/Dialect/mhlo/ops.mlir
@@ -6844,6 +6844,13 @@ func.func @invalid_dimension_attr(%arg0: tensor<?x?xf32, #mhlo.type_extensions<b
 
 // -----
 
+func.func @f4e2m1fn(%arg0: tensor<f16>) -> tensor<f4E2M1FN> {
+  %0 = "mhlo.convert"(%arg0) : (tensor<f16>) -> tensor<f4E2M1FN>
+  func.return %0 : tensor<f4E2M1FN>
+}
+
+// -----
+
 func.func @f8e3m4(%arg0: tensor<f16>) -> tensor<f8E3M4> {
   %0 = "mhlo.convert"(%arg0) : (tensor<f16>) -> tensor<f8E3M4>
   func.return %0 : tensor<f8E3M4>
@@ -6872,6 +6879,13 @@ func.func @f8e5m2(%arg0: tensor<f16>) -> tensor<f8E5M2> {
 
 // -----
 
+func.func @f8e8m0fnu(%arg0: tensor<f16>) -> tensor<f8E8M0FNU> {
+  %0 = "mhlo.convert"(%arg0) : (tensor<f16>) -> tensor<f8E8M0FNU>
+  func.return %0 : tensor<f8E8M0FNU>
+}
+
+// -----
+
 func.func @top_k_1d(%arg0 : tensor<16xf32>) {
   %0:2 = mhlo.topk(%arg0, k=8, largest=true) : tensor<16xf32> -> (tensor<8xf32>, tensor<8xi32>)
   return