bite 228

Author: [email protected]

.gitignore

@@ -23,3 +23,4 @@
 /169/README.md
 /172/README.md
 /21/README.md
+/238/README.md

238/fibonacci.py

@@ -0,0 +1,7 @@
+def fib(n):
+    if n < 0:
+        raise ValueError
+    elif n in (0, 1):
+        return n
+    else:
+        return (fib(n - 1) + fib(n - 2))

238/test_fibonacci.py

@@ -0,0 +1,24 @@
+import pytest
+from fibonacci import fib
+
+
+def test_nlt0():
+    with pytest.raises(ValueError):
+        fib(-1)
+
+
+def test_0():
+    assert fib(0) == 0
+
+
+def test_1():
+    assert fib(1) == 1
+
+
+def test_2():
+    assert fib(2) == 1
+
+
+def test_3():
+    assert fib(3) == 2
+# write one or more pytest functions below, they need to start with test_