diff --git a/.gitattributes b/.gitattributes
index 61d299b5..f45a8178 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,3 @@
 *.py text eol=lf
 *.sh text eol=lf
+*.svg text eol=lf
diff --git a/.github/workflows/precommit.yml b/.github/workflows/precommit.yml
index bfd40323..12361211 100644
--- a/.github/workflows/precommit.yml
+++ b/.github/workflows/precommit.yml
@@ -5,6 +5,7 @@ jobs:
   main:
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
         python-version: [ "3.8", "3.12" ] # Lowest and highest.
     steps:
@@ -13,4 +14,6 @@ jobs:
       with:
           python-version: ${{ matrix.python-version }}
           cache: "pip" # caching pip dependencies
+    - run: pip install -r requirements.txt
+    - run: pip install -r requirements_dev.txt
     - uses: pre-commit/action@v3.0.1
diff --git a/.gitignore b/.gitignore
index 9e7f631d..84311f77 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ documentation/src/generators.inc
 *.ipynb_checkpoints
 venv/
 .vscode/
+tracker.log
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 905984aa..6c0555fa 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -3,6 +3,7 @@
 ci:
   autofix_prs: true
   autoupdate_schedule: quarterly
+exclude: '\.svg$'
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0
@@ -99,3 +100,13 @@ repos:
     hooks:
       - id: codespell
         exclude: ^(boxes|locale|po|static)/ # todo folder boxes
+
+  - repo: local
+    hooks:
+      - id: pytest
+        name: pytest
+        entry: pytest
+        language: system
+        types: [ python ]
+        pass_filenames: false
+        always_run: true
diff --git a/requirements_dev.txt b/requirements_dev.txt
index ba521cb0..d53760d5 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,5 @@
-inkex
+lxml
 mypy
 pre-commit
+pytest>=8.1.1
 types-Markdown
diff --git a/scripts/boxes b/scripts/boxes
old mode 100644
new mode 100755
index 4746e698..7d9fd6c8
--- a/scripts/boxes
+++ b/scripts/boxes
@@ -12,12 +12,12 @@ Options:
   -h --help     Show this screen.
   --list        List available generators.
 """
+from __future__ import annotations
 
 import gettext
 import os
 import sys
 from pathlib import Path
-from typing import Type
 
 try:
     import boxes
@@ -48,21 +48,17 @@ def print_grouped_generators() -> None:
 
 
 def create_example_every_generator() -> None:
+    print("Generating SVG examples for every possible generator.")
     for group in generator_groups():
-        # print()
-        defaultStdout = sys.stdout
-
         for boxExample in group.generators:
             boxName = boxExample.__name__
             notTestGenerator = ('GridfinityTrayLayout', 'TrayLayout', 'TrayLayoutFile', 'TypeTray', 'Edges',)
-            brokenGenerator = ('WallConsole', 'HolePattern', 'FillTest',)  # todo fix?
+            brokenGenerator = ()
             avoidGenerator = notTestGenerator + brokenGenerator
             if boxName in avoidGenerator:
                 print(f"SKIP: {boxName}")
                 continue
-            # print(f"generate example for: {boxName}")
-
-            # sys.stdout = buffer = StringIO()
+            print(f"Generate example for: {boxName}")
 
             box = boxExample()
             box.translations = get_translation()
@@ -71,18 +67,10 @@ def create_example_every_generator() -> None:
             box.open()
             box.render()
             boxData = box.close()
-            #
-            # sys.stdout = defaultStdout
-            # output = buffer.getvalue()  # Get the captured output
-            # if 0 < len(output):
-            #     print("ERROR: " + boxExample.__name__)
 
             file = Path('examples') / (boxName + '.svg')
             file.write_bytes(boxData.getvalue())
 
-        # with os.fdopen(sys.stdout.fileno(), "wb", closefd=False) if box.output == "-" else open(box.output, 'wb') as f:
-        #    f.write(boxData.getvalue())
-
 
 def get_translation():
     try:
@@ -125,7 +113,7 @@ def group_generators(generators):
     return groups
 
 
-def generators_by_name() -> dict[str, Type[boxes.Boxes]]:
+def generators_by_name() -> dict[str, type[boxes.Boxes]]:
     all_generators = boxes.generators.getAllBoxGenerators()
 
     return {
diff --git a/tests/data/.gitkeep b/tests/data/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/test_svg.py b/tests/test_svg.py
new file mode 100644
index 00000000..b608b524
--- /dev/null
+++ b/tests/test_svg.py
@@ -0,0 +1,78 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import pytest
+from lxml import etree
+
+try:
+    import boxes
+except ImportError:
+    sys.path.append(Path(__file__).resolve().parent.parent.__str__())
+    import boxes
+
+import boxes.generators
+
+
+class TestSVG:
+    all_generators = boxes.generators.getAllBoxGenerators().values()
+
+    notTestGenerator = ('GridfinityTrayLayout', 'TrayLayout', 'TrayLayoutFile', 'TypeTray', 'Edges',)
+    brokenGenerator = ()
+    avoidGenerator = notTestGenerator + brokenGenerator
+
+    def test_generators_available(self) -> None:
+        assert len(self.all_generators) != 0
+
+    # svgcheck currently do not allow inkscape custom tags.
+    # @staticmethod
+    # def is_valid_svg(file_path: str) -> bool:
+    #     result = subprocess.run(['svgcheck', file_path], capture_output=True, text=True)
+    #     return "INFO: File conforms to SVG requirements." in result.stdout
+
+    @staticmethod
+    def is_valid_xml_by_lxml(xml_string: str) -> bool:
+        try:
+            etree.fromstring(xml_string)
+            return True
+        except etree.XMLSyntaxError:
+            return False
+
+    @staticmethod
+    def idfunc(val) -> str:
+        return f"{val.__name__}"
+
+    @pytest.mark.parametrize(
+        "generator",
+        all_generators,
+        ids=idfunc.__func__,
+    )
+    def test_generator(self, generator: type[boxes.Boxes], capsys) -> None:
+        boxName = generator.__name__
+        if boxName in self.avoidGenerator:
+            pytest.skip("Skipped generator")
+        box = generator()
+        box.parseArgs("")
+        box.metadata["reproducible"] = True
+        box.open()
+        box.render()
+        boxData = box.close()
+
+        out, err = capsys.readouterr()
+
+        assert 100 < boxData.__sizeof__(), "No data generated."
+        assert 0 == len(out), "Console output generated."
+        assert 0 == len(err), "Console error generated."
+
+        # Use external library lxml as cross-check.
+        assert self.is_valid_xml_by_lxml(boxData.getvalue()) is True, "Invalid XML according to library lxml."
+
+        file = Path(__file__).resolve().parent / 'data' / (boxName + '.svg')
+        file.write_bytes(boxData.getvalue())
+
+        # Use example data from repository as reference data.
+        referenceData = Path(__file__).resolve().parent.parent / 'examples' / (boxName + '.svg')
+        assert referenceData.exists() is True, "Reference file for comparison does not exist."
+        assert referenceData.is_file() is True, "Reference file for comparison does not exist."
+        assert referenceData.read_bytes() == boxData.getvalue(), "SVG files are not equal. If change is intended, please update example files."