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How to use reorder_examples method in hypothesis

Best Python code snippet using hypothesis

shrinker.py

Source:shrinker.py

...1040        buf = bytearray(lowered)1041        del buf[ex.start : ex.end]1042        self.incorporate_new_buffer(buf)1043    @defines_shrink_pass()1044    def reorder_examples(self, chooser):1045        """This pass allows us to reorder the children of each example.1046        For example, consider the following:1047        .. code-block:: python1048            import hypothesis.strategies as st1049            from hypothesis import given1050            @given(st.text(), st.text())1051            def test_not_equal(x, y):1052                assert x != y1053        Without the ability to reorder x and y this could fail either with1054        ``x=""``, ``y="0"``, or the other way around. With reordering it will1055        reliably fail with ``x=""``, ``y="0"``.1056        """1057        ex = chooser.choose(self.examples)1058        label = chooser.choose(ex.children).label...

test_shrinker.py

Source:test_shrinker.py

...140            if not n:141                break142        data.mark_interesting()143    assert x == bytes([0])144def test_can_reorder_examples():145    @shrinking_from([1, 0, 1, 1, 0, 1, 0, 0, 0])146    def shrinker(data):147        total = 0148        for _ in range(5):149            data.start_example(0)150            if data.draw_bits(8):151                total += data.draw_bits(9)152            data.stop_example(0)153        if total == 2:154            data.mark_interesting()155    shrinker.fixate_shrink_passes(["reorder_examples"])156    assert list(shrinker.buffer) == [0, 0, 0, 1, 0, 1, 1, 0, 1]157def test_permits_but_ignores_raising_order(monkeypatch):158    monkeypatch.setattr(...

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