diff --git a/.github/workflows/pr-check-naming-test.yml b/.github/workflows/pr-check-naming-test.yml
new file mode 100644
index 000000000..48f2f791b
--- /dev/null
+++ b/.github/workflows/pr-check-naming-test.yml
@@ -0,0 +1,56 @@
+name: 'Test Naming Check'
+
+on:
+  pull_request:
+    paths:
+      - "tests/**"
+      - ".github/workflows/pr-check-naming-test.yml"
+
+permissions:
+  contents: read
+
+jobs:
+  test-name-check:
+    name: Validate Test File Naming
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a368bb9860e15bcafd2cf940ba6f36c4c
+
+
+      - name: Check Unit Test Naming (must start with test_*.py)
+        run: |
+          echo "Checking unit tests naming…"
+
+          invalid_unit=$(find tests/unit -type f -name "*.py" \
+            ! -name "test_*.py" \
+            ! -name "__init__.py" \
+            ! -name "conftest.py" \
+            ! -name "mock_server.py" \
+            ! -name "utils_for_test.py" \
+            || true)
+
+          if [ -n "$invalid_unit" ]; then
+            echo "❌ Invalid Unit Test Filenames:"
+            echo "$invalid_unit"
+            exit 1
+          fi
+          echo "✔️ Unit test names are valid."
+
+      - name: Check Integration Test Naming (must end with _test.py)
+        run: |
+          echo "Checking integration test naming…"
+
+          invalid_integration=$(find tests/integration -type f -name "*.py" \
+            ! -name "*_test.py" \
+            ! -name "__init__.py" \
+            ! -name "utils_for_test.py" \
+            || true)
+
+          if [ -n "$invalid_integration" ]; then
+            echo "❌ Invalid Integration Test Filenames:"
+            echo "$invalid_integration"
+            exit 1
+          fi
+          echo "✔️ Integration test names are valid."
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index eba973ba3..3d8a594a7 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -95,3 +95,32 @@ jobs:
             echo "FAIL: No line-level changes detected in CHANGELOG.md."
             exit 1
           fi
+
+  test-name-check:
+    name: Test File Naming Check
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Harden the runner (Audit all outbound calls)
+        uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
+        with:
+          egress-policy: audit
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Validate test file naming convention
+        run: |
+          echo "Checking for test files that don't end with _test.py..."
+          invalid_tests=$(find tests -type f -name "*.py" ! -name "*_test.py" || true)
+
+          if [ -n "$invalid_tests" ]; then
+            echo "The following test files don't follow the naming convention (*_test.py):"
+            echo "$invalid_tests"
+            echo ""
+            echo "Please rename them to end with *_test.py so CI can detect and run them."
+            exit 1
+          else
+            echo "All test files follow *_test.py naming convention."
+          fi
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62b941d59..1493e2070 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ This changelog is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.
 ## [Unreleased]
 
 ### Added
+- Added CI check in `.github/workflows/pr-checks.yml` to ensure all test files follow the naming convention `*_test.py`.This prevents untracked or skipped tests from being missed during CI runs.
 - Add `TokenFeeScheduleUpdateTransaction` class to support updating custom fee schedules on tokens (#471).
 - Add `examples/token_update_fee_schedule_fungible.py` and `examples/token_update_fee_schedule_nft.py` demonstrating the use of `TokenFeeScheduleUpdateTransaction`.
 - Update `docs/sdk_users/running_examples.md` to include `TokenFeeScheduleUpdateTransaction`.
diff --git a/tests/integration/account_balance_query_e2e.py b/tests/integration/account_balance_query_e2e.py
new file mode 100644
index 000000000..325b7326c
--- /dev/null
+++ b/tests/integration/account_balance_query_e2e.py
@@ -0,0 +1,14 @@
+import pytest
+
+from hiero_sdk_python.query.account_balance_query import CryptoGetAccountBalanceQuery
+from tests.integration.utils_for_test import IntegrationTestEnv
+
+
+@pytest.mark.integration
+def test_integration_account_balance_query_can_execute():
+    env = IntegrationTestEnv()
+    
+    try:
+        CryptoGetAccountBalanceQuery(account_id=env.operator_id).execute(env.client)
+    finally:
+        env.close()
\ No newline at end of file
diff --git a/unit/failing_test_example.py b/unit/failing_test_example.py
new file mode 100644
index 000000000..295c213a5
--- /dev/null
+++ b/unit/failing_test_example.py
@@ -0,0 +1 @@
+def dummy_test(): pass