feat(action): validate definitions before generating

.github/workflows/test.yml

@@ -38,6 +38,9 @@ jobs:
         working-directory: generator
         run: cargo build --release
 
+      - name: Validate example definitions
+        run: ./generator/target/release/generate-fixtures --validate --definitions fixtures/examples
+
       - name: Generate example fixtures
         run: |
           ./generator/target/release/generate-fixtures \

action.yml

@@ -53,6 +53,13 @@
         mkdir -p "$GEN_DIR"
         echo "gen-dir=$GEN_DIR" >> "$GITHUB_OUTPUT"
 
+    - name: Validate definitions
+      shell: bash
+      run: |
+        __fixtures__/generator/target/release/generate-fixtures \
+          --validate \
+          --definitions "${{ inputs.definitions }}"
+
     - name: Generate fixtures
       id: generate
       shell: bash