diff --git a/test/espnet2/gan_tts/jets/test_jets.py b/test/espnet2/gan_tts/jets/test_jets.py
index 0a7382f6e36..3e527bbe698 100644
--- a/test/espnet2/gan_tts/jets/test_jets.py
+++ b/test/espnet2/gan_tts/jets/test_jets.py
@@ -251,46 +251,6 @@ def make_jets_loss_args(**kwargs):
             },
             {},
         ),
-        (
-            {},
-            {
-                "discriminator_type": "hifigan_period_discriminator",
-                "discriminator_params": {
-                    "period": 2,
-                    "in_channels": 1,
-                    "out_channels": 1,
-                    "kernel_sizes": [5, 3],
-                    "channels": 16,
-                    "downsample_scales": [3, 3, 1],
-                    "max_downsample_channels": 32,
-                    "bias": True,
-                    "nonlinear_activation": "LeakyReLU",
-                    "nonlinear_activation_params": {"negative_slope": 0.1},
-                    "use_weight_norm": True,
-                    "use_spectral_norm": False,
-                },
-            },
-            {},
-        ),
-        (
-            {},
-            {
-                "discriminator_type": "hifigan_scale_discriminator",
-                "discriminator_params": {
-                    "in_channels": 1,
-                    "out_channels": 1,
-                    "kernel_sizes": [15, 41, 5, 3],
-                    "channels": 16,
-                    "max_downsample_channels": 32,
-                    "max_groups": 16,
-                    "bias": True,
-                    "downsample_scales": [2, 2, 1],
-                    "nonlinear_activation": "LeakyReLU",
-                    "nonlinear_activation_params": {"negative_slope": 0.1},
-                },
-            },
-            {},
-        ),
         (
             {},
             {},
@@ -442,46 +402,6 @@ def test_jets_is_trainable_and_decodable(gen_dict, dis_dict, loss_dict):
             },
             {},
         ),
-        (
-            {},
-            {
-                "discriminator_type": "hifigan_period_discriminator",
-                "discriminator_params": {
-                    "period": 2,
-                    "in_channels": 1,
-                    "out_channels": 1,
-                    "kernel_sizes": [5, 3],
-                    "channels": 16,
-                    "downsample_scales": [3, 3, 1],
-                    "max_downsample_channels": 32,
-                    "bias": True,
-                    "nonlinear_activation": "LeakyReLU",
-                    "nonlinear_activation_params": {"negative_slope": 0.1},
-                    "use_weight_norm": True,
-                    "use_spectral_norm": False,
-                },
-            },
-            {},
-        ),
-        (
-            {},
-            {
-                "discriminator_type": "hifigan_scale_discriminator",
-                "discriminator_params": {
-                    "in_channels": 1,
-                    "out_channels": 1,
-                    "kernel_sizes": [15, 41, 5, 3],
-                    "channels": 16,
-                    "max_downsample_channels": 32,
-                    "max_groups": 16,
-                    "bias": True,
-                    "downsample_scales": [2, 2, 1],
-                    "nonlinear_activation": "LeakyReLU",
-                    "nonlinear_activation_params": {"negative_slope": 0.1},
-                },
-            },
-            {},
-        ),
         (
             {},
             {},