Added test case for csv module

tests/snippets/test_csv.py

@@ -0,0 +1,23 @@
+import csv
+
+for row in csv.reader(['one,two,three']):
+	[one, two, three] = row
+	assert one == 'one'
+	assert two == 'two'
+	assert three == 'three'
+
+def f():
+	iter = ['one,two,three', 'four,five,six']
+	reader = csv.reader(iter)
+
+	[one,two,three] = next(reader)
+	[four,five,six] = next(reader)
+
+	assert one == 'one'
+	assert two == 'two'
+	assert three == 'three'
+	assert four == 'four'
+	assert five == 'five'
+	assert six == 'six'
+
+f()