1 files changed, 42 insertions, 0 deletions
diff --git a/pathod/test/test_language_generators.py b/pathod/test/test_language_generators.py
new file mode 100644
index 00000000..945560c3
--- /dev/null
+++ b/pathod/test/test_language_generators.py
@@ -0,0 +1,42 @@
+import os
+
+from libpathod.language import generators
+import tutils
+
+
+def test_randomgenerator():
+    g = generators.RandomGenerator("bytes", 100)
+    assert repr(g)
+    assert len(g[:10]) == 10
+    assert len(g[1:10]) == 9
+    assert len(g[:1000]) == 100
+    assert len(g[1000:1001]) == 0
+    assert g[0]
+
+
+def test_filegenerator():
+    with tutils.tmpdir() as t:
+        path = os.path.join(t, "foo")
+        f = open(path, "wb")
+        f.write("x" * 10000)
+        f.close()
+        g = generators.FileGenerator(path)
+        assert len(g) == 10000
+        assert g[0] == "x"
+        assert g[-1] == "x"
+        assert g[0:5] == "xxxxx"
+        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)