Separate out the batching code.

batch_test.py

@@ -0,0 +1,22 @@
+import random
+
+import pytest
+
+import unit_converter
+
+
+@pytest.fixture(scope="module")
+def batch_numbers():
+    return [random.random() * 100 for x in range(1000)]
+
+
+def batch_python_unit_converter(temperatures):
+    return [celsius * 1.8 + 32.0 for celsius in temperatures]
+
+
+def test_using_python_batch(benchmark, batch_numbers):
+    benchmark(batch_python_unit_converter, batch_numbers)
+
+
+def test_using_rust_batch(benchmark, batch_numbers):
+    benchmark(unit_converter.batch_convert_celsius_to_fahrenheit, batch_numbers)

test.py

@@ -1,15 +1,8 @@
 import random
 
-import pytest
-
 import unit_converter
 
 
-@pytest.fixture(scope="module")
-def batch_numbers():
-    return [random.random() * 100 for x in range(1000)]
-
-
 def python_unit_converter(celsius):
     return celsius * 1.8 + 32.0
 
@@ -43,11 +36,3 @@ def test_using_rust(benchmark):
     temperature = random.random() * 100
     result = benchmark(unit_converter.convert_celsius_to_fahrenheit, temperature)
     assert round(result, 3) == round(python_unit_converter(temperature), 3)
-
-
-def test_using_python_batch(benchmark, batch_numbers):
-    benchmark(batch_python_unit_converter, batch_numbers)
-
-
-def test_using_rust_batch(benchmark, batch_numbers):
-    benchmark(unit_converter.batch_convert_celsius_to_fahrenheit, batch_numbers)