1 files changed, 45 insertions, 0 deletions
diff --git a/test/pathod/language/test_generators.py b/test/pathod/language/test_generators.py
new file mode 100644
index 00000000..b3ce0335
--- /dev/null
+++ b/test/pathod/language/test_generators.py
@@ -0,0 +1,45 @@
+import os
+
+from pathod.language import generators
+from mitmproxy.test import tutils
+
+
+def test_randomgenerator():
+    g = generators.RandomGenerator("bytes", 100)
+    assert repr(g)
+    assert g[0]
+    assert len(g[0]) == 1
+    assert len(g[:10]) == 10
+    assert len(g[1:10]) == 9
+    assert len(g[:1000]) == 100
+    assert len(g[1000:1001]) == 0
+
+
+def test_filegenerator():
+    with tutils.tmpdir() as t:
+        path = os.path.join(t, "foo")
+        f = open(path, "wb")
+        f.write(b"x" * 10000)
+        f.close()
+        g = generators.FileGenerator(path)
+        assert len(g) == 10000
+        assert g[0] == b"x"
+        assert g[-1] == b"x"
+        assert g[0:5] == b"xxxxx"
+        assert len(g[1:10]) == 9
+        assert len(g[10000:10001]) == 0
+        assert repr(g)
+        # remove all references to FileGenerator instance to close the file
+        # handle.
+        del g
+
+
+def test_transform_generator():
+    def trans(offset, data):
+        return "a" * len(data)
+    g = "one"
+    t = generators.TransformGenerator(g, trans)
+    assert len(t) == len(g)
+    assert t[0] == "a"
+    assert t[:] == "a" * len(g)
+    assert repr(t)