Add a new test to verify that coverage increases

tests/conftest.py

@@ -0,0 +1,15 @@
+# Copyright 2021 Adobe. All rights reserved.
+
+import os
+import pytest
+
+
+@pytest.fixture
+def fonts_dir():
+    root_dir = os.path.dirname(os.path.dirname(__file__))
+    yield os.path.join(root_dir, 'fonts')
+
+
+@pytest.fixture
+def base_font_path(fonts_dir):
+    yield os.path.join(fonts_dir, 'Zebrawood.otf')

tests/dumpsvg_test.py

@@ -0,0 +1,12 @@
+# Copyright 2021 Adobe. All rights reserved.
+
+import pytest
+
+from opentypesvg.dumpsvg import main
+
+
+def test_font_without_svg_table(base_font_path, capsys):
+    with pytest.raises(SystemExit):
+        main([base_font_path])
+    captured = capsys.readouterr()
+    assert captured.err == "ERROR: The font does not have the SVG table.\n"