1 files changed, 39 insertions, 0 deletions
diff --git a/Tests/ttLib/ttVisitor_test.py b/Tests/ttLib/ttVisitor_test.py
new file mode 100644
index 00000000..e84e213c
--- /dev/null
+++ b/Tests/ttLib/ttVisitor_test.py
@@ -0,0 +1,39 @@
+from fontTools.ttLib import TTFont
+from fontTools.ttLib.ttVisitor import TTVisitor
+import os
+import pytest
+
+
+class TestVisitor(TTVisitor):
+    def __init__(self):
+        self.value = []
+        self.depth = 0
+
+    def _add(self, s):
+        self.value.append(s)
+
+    def visit(self, obj, target_depth):
+        if self.depth == target_depth:
+            self._add(obj)
+        self.depth += 1
+        super().visit(obj, target_depth)
+        self.depth -= 1
+
+
+class TTVisitorTest(object):
+
+    @staticmethod
+    def getpath(testfile):
+        path = os.path.dirname(__file__)
+        return os.path.join(path, "data", testfile)
+
+    def test_ttvisitor(self):
+
+        font = TTFont(self.getpath("TestVGID-Regular.otf"))
+        visitor = TestVisitor()
+
+        # Count number of objects at depth 1:
+        # That is, number of font tables, including GlyphOrder.
+        visitor.visit(font, 1)
+
+        assert len(visitor.value) == 14