diff --git a/.github/workflows/runtime.yml b/.github/workflows/runtime.yml
index 2ebacaa..2edf961 100644
--- a/.github/workflows/runtime.yml
+++ b/.github/workflows/runtime.yml
@@ -20,6 +20,18 @@ jobs:
         run: |
           cmake -B build -G Ninja -S runtime -DBUILD_TESTING=ON
           cmake --build build --parallel
+      - uses: actions/setup-python@v5
+        if: matrix.os == 'ubuntu-latest'
+        with:
+          python-version: '3.x'
+      - name: Install dependencies & Generate TN models
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          pip install pynini importlib_resources
+          python -m tn --language zh --overwrite_cache
+      - name: Run tests
+        if: matrix.os == 'ubuntu-latest'
+        run: ctest --test-dir build/test --output-on-failure
 
   build-windows:
     name: build (windows-latest)
@@ -45,6 +57,8 @@ jobs:
           cmake --version
           gcc --version
 
+          # Tests are skipped on Windows: processor_test needs zh_tn_*.fst, which
+          # are generated via pynini, and pynini has no Windows build.
           cmake -S runtime -B build -G Ninja \
             -DCMAKE_BUILD_TYPE=Release \
             -DBUILD_TESTING=OFF
diff --git a/runtime/test/CMakeLists.txt b/runtime/test/CMakeLists.txt
index bf1b67f..4b43bb7 100644
--- a/runtime/test/CMakeLists.txt
+++ b/runtime/test/CMakeLists.txt
@@ -15,4 +15,8 @@ endif()
 
 add_executable(processor_test processor_test.cc)
 target_link_libraries(processor_test PUBLIC wetext_processor)
+# Inject an absolute path to the *.fst models and golden data so the test does
+# not depend on the working directory.
+target_compile_definitions(processor_test PRIVATE
+  WETEXT_TN_DIR="${CMAKE_CURRENT_SOURCE_DIR}/../../tn")
 gtest_discover_tests(processor_test)
diff --git a/runtime/test/processor_test.cc b/runtime/test/processor_test.cc
index e4be967..16e91bc 100644
--- a/runtime/test/processor_test.cc
+++ b/runtime/test/processor_test.cc
@@ -20,6 +20,12 @@
 #include "processor/wetext_processor.h"
 #include "utils/wetext_string.h"
 
+// Absolute path to the dir with *.fst models and golden data, injected by CMake
+// so the test does not depend on the current working directory.
+#ifndef WETEXT_TN_DIR
+#define WETEXT_TN_DIR "../tn"
+#endif
+
 std::vector<std::pair<std::string, std::string>> ParseTestCase(
     const std::string& file_path) {
   const std::string delimiter = "=>";
@@ -52,8 +58,8 @@ class ProcessorTest
   std::string spoken;
 
   virtual void SetUp() {
-    std::string tagger_path = "../tn/zh_tn_tagger.fst";
-    std::string verbalizer_path = "../tn/zh_tn_verbalizer.fst";
+    std::string tagger_path = WETEXT_TN_DIR "/zh_tn_tagger.fst";
+    std::string verbalizer_path = WETEXT_TN_DIR "/zh_tn_verbalizer.fst";
     processor = new wetext::Processor(tagger_path, verbalizer_path);
     written = GetParam().first;
     spoken = GetParam().second;
@@ -67,6 +73,6 @@ TEST_P(ProcessorTest, NormalizeTest) {
 }
 
 std::vector<std::pair<std::string, std::string>> test_cases =
-    ParseTestCase("../tn/chinese/test/data/normalizer.txt");
+    ParseTestCase(WETEXT_TN_DIR "/chinese/test/data/normalizer.txt");
 INSTANTIATE_TEST_SUITE_P(NormalizeTest, ProcessorTest,
                          testing::ValuesIn(test_cases));