Added min height bst challenge.

graphs_trees/bst_min/test_bst_min.py

@@ -0,0 +1,24 @@
+from nose.tools import assert_equal
+
+
+class TestBstMin(object):
+
+    def test_bst_min(self):
+        array = [0, 1, 2, 3, 4, 5, 6]
+        root = create_min_bst(array)
+        assert_equal(height(root), 3)
+
+        array = [0, 1, 2, 3, 4, 5, 6, 7]
+        root = create_min_bst(array)
+        assert_equal(height(root), 4)
+
+        print('Success: test_bst_min')
+
+
+def main():
+    test = TestBstMin()
+    test.test_bst_min()
+
+
+if __name__ == '__main__':
+    main()