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- import pytest
- import numpy as np
- from . import util
- class TestString(util.F2PyTest):
- sources = [util.getpath("tests", "src", "string", "char.f90")]
- @pytest.mark.slow
- def test_char(self):
- strings = np.array(["ab", "cd", "ef"], dtype="c").T
- inp, out = self.module.char_test.change_strings(
- strings, strings.shape[1])
- assert inp == pytest.approx(strings)
- expected = strings.copy()
- expected[1, :] = "AAA"
- assert out == pytest.approx(expected)
- class TestDocStringArguments(util.F2PyTest):
- sources = [util.getpath("tests", "src", "string", "string.f")]
- def test_example(self):
- a = np.array(b"123\0\0")
- b = np.array(b"123\0\0")
- c = np.array(b"123")
- d = np.array(b"123")
- self.module.foo(a, b, c, d)
- assert a.tobytes() == b"123\0\0"
- assert b.tobytes() == b"B23\0\0"
- assert c.tobytes() == b"123"
- assert d.tobytes() == b"D23"
- class TestFixedString(util.F2PyTest):
- sources = [util.getpath("tests", "src", "string", "fixed_string.f90")]
- @staticmethod
- def _sint(s, start=0, end=None):
- """Return the content of a string buffer as integer value.
- For example:
- _sint('1234') -> 4321
- _sint('123A') -> 17321
- """
- if isinstance(s, np.ndarray):
- s = s.tobytes()
- elif isinstance(s, str):
- s = s.encode()
- assert isinstance(s, bytes)
- if end is None:
- end = len(s)
- i = 0
- for j in range(start, min(end, len(s))):
- i += s[j] * 10**j
- return i
- def _get_input(self, intent="in"):
- if intent in ["in"]:
- yield ""
- yield "1"
- yield "1234"
- yield "12345"
- yield b""
- yield b"\0"
- yield b"1"
- yield b"\01"
- yield b"1\0"
- yield b"1234"
- yield b"12345"
- yield np.ndarray((), np.bytes_, buffer=b"") # array(b'', dtype='|S0')
- yield np.array(b"") # array(b'', dtype='|S1')
- yield np.array(b"\0")
- yield np.array(b"1")
- yield np.array(b"1\0")
- yield np.array(b"\01")
- yield np.array(b"1234")
- yield np.array(b"123\0")
- yield np.array(b"12345")
- def test_intent_in(self):
- for s in self._get_input():
- r = self.module.test_in_bytes4(s)
- # also checks that s is not changed inplace
- expected = self._sint(s, end=4)
- assert r == expected, s
- def test_intent_inout(self):
- for s in self._get_input(intent="inout"):
- rest = self._sint(s, start=4)
- r = self.module.test_inout_bytes4(s)
- expected = self._sint(s, end=4)
- assert r == expected
- # check that the rest of input string is preserved
- assert rest == self._sint(s, start=4)
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