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--- a
+++ b/tests/test_embedded_sequence.py
@@ -0,0 +1,60 @@
+import numpy
+import unittest
+
+from pyeeg import embed_seq
+
+
+class EmbeddedSequenceTests(unittest.TestCase):
+    def setUp(self):
+        self.data = range(0, 9)
+
+    def test_embedded_sequence_1_4(self):
+        self.assertEqual(
+            embed_seq(self.data, 1, 4).all(),
+            numpy.asarray(
+                [
+                    [0., 1., 2., 3.],
+                    [1., 2., 3., 4.],
+                    [2., 3., 4., 5.],
+                    [3., 4., 5., 6.],
+                    [4., 5., 6., 7.],
+                    [5., 6., 7., 8.]
+                ]
+            ).all()
+        )
+
+    def test_embedded_sequence_2_3(self):
+        self.assertEqual(
+            embed_seq(self.data, 2, 3).all(),
+            numpy.asarray(
+                [
+                    [0., 2., 4.],
+                    [1., 3., 5.],
+                    [2., 4., 6.],
+                    [3., 5., 7.],
+                    [4., 6., 8.]
+                ]
+            ).all()
+        )
+
+    def test_embedded_sequence_4_1(self):
+        self.assertEqual(
+            embed_seq(self.data, 2, 3).all(),
+            numpy.asarray(
+                [
+                    [0.],
+                    [1.],
+                    [2.],
+                    [3.],
+                    [4.],
+                    [5.],
+                    [6.],
+                    [7.],
+                    [8.]
+                ]
+            ).all()
+        )
+
+
+if __name__ == '__main__':
+    unittest.main()