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Diffstat (limited to 'numpy/lib/tests/test_io.py')
| -rw-r--r-- | numpy/lib/tests/test_io.py | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/numpy/lib/tests/test_io.py b/numpy/lib/tests/test_io.py index 711415c6a..e31115978 100644 --- a/numpy/lib/tests/test_io.py +++ b/numpy/lib/tests/test_io.py @@ -1068,6 +1068,55 @@ class TestLoadTxt(LoadTxtBase): x = [b'5,6,7,\xc3\x95scarscar', b'15,2,3,hello', b'20,2,3,\xc3\x95scar'] assert_array_equal(x, np.array(x, dtype="S")) + def test_max_rows(self): + c = TextIO() + c.write('1,2,3,5\n4,5,7,8\n2,1,4,5') + c.seek(0) + x = np.loadtxt(c, dtype=int, delimiter=',', + max_rows=1) + a = np.array([1, 2, 3, 5], int) + assert_array_equal(x, a) + + def test_max_rows_with_skiprows(self): + c = TextIO() + c.write('comments\n1,2,3,5\n4,5,7,8\n2,1,4,5') + c.seek(0) + x = np.loadtxt(c, dtype=int, delimiter=',', + skiprows=1, max_rows=1) + a = np.array([1, 2, 3, 5], int) + assert_array_equal(x, a) + + c = TextIO() + c.write('comment\n1,2,3,5\n4,5,7,8\n2,1,4,5') + c.seek(0) + x = np.loadtxt(c, dtype=int, delimiter=',', + skiprows=1, max_rows=2) + a = np.array([[1, 2, 3, 5], [4, 5, 7, 8]], int) + assert_array_equal(x, a) + + def test_max_rows_with_read_continuation(self): + c = TextIO() + c.write('1,2,3,5\n4,5,7,8\n2,1,4,5') + c.seek(0) + x = np.loadtxt(c, dtype=int, delimiter=',', + max_rows=2) + a = np.array([[1, 2, 3, 5], [4, 5, 7, 8]], int) + assert_array_equal(x, a) + # test continuation + x = np.loadtxt(c, dtype=int, delimiter=',') + a = np.array([2,1,4,5], int) + assert_array_equal(x, a) + + def test_max_rows_larger(self): + #test max_rows > num rows + c = TextIO() + c.write('comment\n1,2,3,5\n4,5,7,8\n2,1,4,5') + c.seek(0) + x = np.loadtxt(c, dtype=int, delimiter=',', + skiprows=1, max_rows=6) + a = np.array([[1, 2, 3, 5], [4, 5, 7, 8], [2, 1, 4, 5]], int) + assert_array_equal(x, a) + class Testfromregex(object): def test_record(self): c = TextIO() |