diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 2d111eef..ffd96792 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -102,6 +102,41 @@ jobs:
           name: artifacts-${{ matrix.config }}
           path: egs/yesno/voc1
 
+  integration_segments:
+    runs-on: ubuntu-20.04
+    strategy:
+      max-parallel: 10
+      matrix:
+        python-version: [3.9]
+        pytorch-version: [1.13.1]
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: 'x64'
+      - uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.pytorch-version }}-pip-${{ hashFiles('**/setup.py') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.python-version }}-${{ matrix.pytorch-version }}-pip-
+      - name: Install dependencies
+        run: |
+          sudo apt-get install libsndfile-dev jq
+          # make python env
+          cd tools; make CUDA_VERSION="" PYTHON=python${{ matrix.python-version }} PYTORCH_VERSION=${{ matrix.pytorch-version }}
+          source venv/bin/activate
+          pip install torch-yin
+      - name: Integration
+        run: |
+          cd egs/yesno/voc1 && ./run.sh --use_fake_segments true
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: artifacts-${{ matrix.config }}
+          path: egs/yesno/voc1
+
   integration_vq:
     runs-on: ubuntu-20.04
     strategy:
diff --git a/egs/yesno/voc1/local/data_prep.sh b/egs/yesno/voc1/local/data_prep.sh
index 5f2fbc8d..1b6fab6c 100755
--- a/egs/yesno/voc1/local/data_prep.sh
+++ b/egs/yesno/voc1/local/data_prep.sh
@@ -12,6 +12,7 @@ train_set="train_nodev"
 dev_set="dev"
 eval_set="eval"
 shuffle=false
+use_fake_segments=false
 
 # shellcheck disable=SC1091
 . utils/parse_options.sh || exit 1;
@@ -31,6 +32,7 @@ if [ $# != 2 ]; then
     echo "    --dev_set: name of dev set (default=dev)."
     echo "    --eval_set: name of eval set (default=eval)."
     echo "    --shuffle: whether to perform shuffle in making dev / eval set (default=false)."
+    echo "    --use_fake_segments: whether to use fake segments (default=false)."
     exit 1
 fi
 
@@ -40,18 +42,28 @@ set -euo pipefail
 
 # set filenames
 scp="${data_dir}/all/wav.scp"
+segments="${data_dir}/all/segments"
 
 # check file existence
 [ -e "${scp}" ] && rm "${scp}"
+[ -e "${segments}" ] && rm "${segments}"
 
 # make all scp
 find "${db_root}" -follow -name "*.wav" | sort | while read -r filename; do
     id=$(basename "${filename}" | sed -e "s/\.[^\.]*$//g")
     echo "${id} ${filename}" >> "${scp}"
+    # NOTE(kan-bayashi): for integration test
+    if "${use_fake_segments}"; then
+        echo "${id}_1 ${id} 0.0 $(soxi -D "${filename}")" >> "${data_dir}/all/segments"
+        echo "${id}_2 ${id} 0.0 $(soxi -D "${filename}")" >> "${data_dir}/all/segments"
+    fi
 done
 
 # split
 num_all=$(wc -l < "${scp}")
+if "${use_fake_segments}"; then
+    num_all=$(wc -l < "${segments}")
+fi
 num_deveval=$((num_dev + num_eval))
 num_train=$((num_all - num_deveval))
 utils/split_data.sh \
diff --git a/egs/yesno/voc1/run.sh b/egs/yesno/voc1/run.sh
index 55e7282b..bbff905a 100755
--- a/egs/yesno/voc1/run.sh
+++ b/egs/yesno/voc1/run.sh
@@ -20,6 +20,9 @@ conf=conf/parallel_wavegan.v1.debug.yaml
 download_dir=downloads # direcotry to save downloaded files
 dumpdir=dump           # directory to dump features
 
+# data setting
+use_fake_segments=false  # for testing
+
 # training related setting
 tag=""     # tag for directory to save model
 resume=""  # checkpoint path to resume training
@@ -47,6 +50,7 @@ fi
 if [ "${stage}" -le 0 ] && [ "${stop_stage}" -ge 0 ]; then
     echo "Stage 0: Data preparation"
     local/data_prep.sh \
+        --use_fake_segments "${use_fake_segments}" \
         --train_set "${train_set}" \
         --dev_set "${dev_set}" \
         --eval_set "${eval_set}" \
diff --git a/utils/make_subset_data.sh b/utils/make_subset_data.sh
index b5aeffd1..b510e3a5 100755
--- a/utils/make_subset_data.sh
+++ b/utils/make_subset_data.sh
@@ -22,29 +22,21 @@ num_split=$2
 dst_dir=$3
 
 src_scp=${src_dir}/wav.scp
+num_src_utts=$(wc -l < "${src_scp}")
+has_utt2spk=false
+has_segments=false
+
 if [ -e "${src_dir}/segments" ]; then
     has_segments=true
     src_segments=${src_dir}/segments
-else
-    has_segments=false
+    num_src_utts=$(wc -l < "${src_segments}")
 fi
+
 if [ -e "${src_dir}/utt2spk" ]; then
     has_utt2spk=true
     src_utt2spk=${src_dir}/utt2spk
-else
-    has_utt2spk=false
 fi
-src_scp=${src_dir}/wav.scp
-num_src_utts=$(wc -l < "${src_scp}")
 
-# NOTE: We assume that wav.scp and segments has the same number of lines
-if ${has_segments}; then
-    num_src_segments=$(wc -l < "${src_segments}")
-    if [ "${num_src_segments}" -ne "${num_src_utts}" ]; then
-        echo "ERROR: wav.scp and segments has different #lines (${num_src_utts} vs ${num_src_segments})." >&2
-        exit 1;
-    fi
-fi
 if ${has_utt2spk}; then
     num_src_utt2spk=$(wc -l < "${src_utt2spk}")
     if [ "${num_src_utt2spk}" -ne "${num_src_utts}" ]; then
diff --git a/utils/split_data.sh b/utils/split_data.sh
index 82a0735a..1ba7ae2d 100755
--- a/utils/split_data.sh
+++ b/utils/split_data.sh
@@ -28,7 +28,7 @@ if [ $# -ne 3 ]; then
     exit 1
 fi
 
-set -eu
+set -eux
 
 src_dir=$1
 first_dist_dir=$2
@@ -49,7 +49,6 @@ if [ -e "${src_dir}/utt2spk" ]; then
 else
     has_utt2spk=false
 fi
-src_scp=${src_dir}/wav.scp
 
 if ${has_utt2spk}; then
     num_src_utt2spk=$(wc -l < "${src_utt2spk}")