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How to use draw_bits method in hypothesis
Best Python code snippet using hypothesis
test_data_tree.py
Source:test_data_tree.py 
...41 return accept42def test_can_lookup_cached_examples():43 @runner_for(b"\0\0", b"\0\1")44 def runner(data):45 data.draw_bits(8)46 data.draw_bits(8)47def test_can_lookup_cached_examples_with_forced():48 @runner_for(b"\0\0", b"\0\1")49 def runner(data):50 data.write(b"\1")51 data.draw_bits(8)52def test_can_detect_when_tree_is_exhausted():53 @runner_for(b"\0", b"\1")54 def runner(data):55 data.draw_bits(1)56 assert runner.tree.is_exhausted57def test_can_detect_when_tree_is_exhausted_variable_size():58 @runner_for(b"\0", b"\1\0", b"\1\1")59 def runner(data):60 if data.draw_bits(1):61 data.draw_bits(1)62 assert runner.tree.is_exhausted63def test_one_dead_branch():64 @runner_for([[0, i] for i in range(16)] + [[i] for i in range(1, 16)])65 def runner(data):66 i = data.draw_bits(4)67 if i > 0:68 data.mark_invalid()69 data.draw_bits(4)70 assert runner.tree.is_exhausted71def test_non_dead_root():72 @runner_for(b"\0\0", b"\1\0", b"\1\1")73 def runner(data):74 data.draw_bits(1)75 data.draw_bits(1)76def test_can_reexecute_dead_examples():77 @runner_for(b"\0\0", b"\0\1", b"\0\0")78 def runner(data):79 data.draw_bits(1)80 data.draw_bits(1)81def test_novel_prefixes_are_novel():82 def tf(data):83 for _ in range(4):84 data.write(b"\0")85 data.draw_bits(2)86 runner = ConjectureRunner(tf, settings=TEST_SETTINGS, random=Random(0))87 for _ in range(100):88 prefix = runner.tree.generate_novel_prefix(runner.random)89 example = prefix + bytes(8 - len(prefix))90 assert runner.tree.rewrite(example)[1] is None91 result = runner.cached_test_function(example)92 assert runner.tree.rewrite(example)[0] == result.buffer93def test_overruns_if_not_enough_bytes_for_block():94 runner = ConjectureRunner(95 lambda data: data.draw_bytes(2), settings=TEST_SETTINGS, random=Random(0)96 )97 runner.cached_test_function(b"\0\0")98 assert runner.tree.rewrite(b"\0")[1] == Status.OVERRUN99def test_overruns_if_prefix():100 runner = ConjectureRunner(101 lambda data: [data.draw_bits(1) for _ in range(2)],102 settings=TEST_SETTINGS,103 random=Random(0),104 )105 runner.cached_test_function(b"\0\0")106 assert runner.tree.rewrite(b"\0")[1] == Status.OVERRUN107def test_stores_the_tree_flat_until_needed():108 @runner_for(bytes(10))109 def runner(data):110 for _ in range(10):111 data.draw_bits(1)112 data.mark_interesting()113 root = runner.tree.root114 assert len(root.bit_lengths) == 10115 assert len(root.values) == 10116 assert root.transition.status == Status.INTERESTING117def test_split_in_the_middle():118 @runner_for([0, 0, 2], [0, 1, 3])119 def runner(data):120 data.draw_bits(1)121 data.draw_bits(1)122 data.draw_bits(4)123 data.mark_interesting()124 root = runner.tree.root125 assert len(root.bit_lengths) == len(root.values) == 1126 assert list(root.transition.children[0].values) == [2]127 assert list(root.transition.children[1].values) == [3]128def test_stores_forced_nodes():129 @runner_for(bytes(3))130 def runner(data):131 data.draw_bits(1, forced=0)132 data.draw_bits(1)133 data.draw_bits(1, forced=0)134 data.mark_interesting()135 root = runner.tree.root136 assert root.forced == {0, 2}137def test_correctly_relocates_forced_nodes():138 @runner_for([0, 0], [1, 0])139 def runner(data):140 data.draw_bits(1)141 data.draw_bits(1, forced=0)142 data.mark_interesting()143 root = runner.tree.root144 assert root.transition.children[1].forced == {0}145 assert root.transition.children[0].forced == {0}146def test_can_go_from_interesting_to_valid():147 tree = DataTree()148 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())149 with pytest.raises(StopTest):150 data.conclude_test(Status.INTERESTING)151 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())152 with pytest.raises(StopTest):153 data.conclude_test(Status.VALID)154def test_going_from_interesting_to_invalid_is_flaky():155 tree = DataTree()156 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())157 with pytest.raises(StopTest):158 data.conclude_test(Status.INTERESTING)159 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())160 with pytest.raises(Flaky):161 data.conclude_test(Status.INVALID)162def test_concluding_at_prefix_is_flaky():163 tree = DataTree()164 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())165 data.draw_bits(1)166 with pytest.raises(StopTest):167 data.conclude_test(Status.INTERESTING)168 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())169 with pytest.raises(Flaky):170 data.conclude_test(Status.INVALID)171def test_concluding_with_overrun_at_prefix_is_not_flaky():172 tree = DataTree()173 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())174 data.draw_bits(1)175 with pytest.raises(StopTest):176 data.conclude_test(Status.INTERESTING)177 data = ConjectureData.for_buffer(b"", observer=tree.new_observer())178 with pytest.raises(StopTest):179 data.conclude_test(Status.OVERRUN)180def test_changing_n_bits_is_flaky_in_prefix():181 tree = DataTree()182 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())183 data.draw_bits(1)184 with pytest.raises(StopTest):185 data.conclude_test(Status.INTERESTING)186 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())187 with pytest.raises(Flaky):188 data.draw_bits(2)189def test_changing_n_bits_is_flaky_in_branch():190 tree = DataTree()191 for i in [0, 1]:192 data = ConjectureData.for_buffer([i], observer=tree.new_observer())193 data.draw_bits(1)194 with pytest.raises(StopTest):195 data.conclude_test(Status.INTERESTING)196 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())197 with pytest.raises(Flaky):198 data.draw_bits(2)199def test_extending_past_conclusion_is_flaky():200 tree = DataTree()201 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())202 data.draw_bits(1)203 with pytest.raises(StopTest):204 data.conclude_test(Status.INTERESTING)205 data = ConjectureData.for_buffer(b"\1\0", observer=tree.new_observer())206 data.draw_bits(1)207 with pytest.raises(Flaky):208 data.draw_bits(1)209def test_changing_to_forced_is_flaky():210 tree = DataTree()211 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())212 data.draw_bits(1)213 with pytest.raises(StopTest):214 data.conclude_test(Status.INTERESTING)215 data = ConjectureData.for_buffer(b"\1\0", observer=tree.new_observer())216 with pytest.raises(Flaky):217 data.draw_bits(1, forced=0)218def test_changing_value_of_forced_is_flaky():219 tree = DataTree()220 data = ConjectureData.for_buffer(b"\1", observer=tree.new_observer())221 data.draw_bits(1, forced=1)222 with pytest.raises(StopTest):223 data.conclude_test(Status.INTERESTING)224 data = ConjectureData.for_buffer(b"\1\0", observer=tree.new_observer())225 with pytest.raises(Flaky):226 data.draw_bits(1, forced=0)227def test_does_not_truncate_if_unseen():228 tree = DataTree()229 b = bytes([1, 2, 3, 4])230 assert tree.rewrite(b) == (b, None)231def test_truncates_if_seen():232 tree = DataTree()233 b = bytes([1, 2, 3, 4])234 data = ConjectureData.for_buffer(b, observer=tree.new_observer())235 data.draw_bits(8)236 data.draw_bits(8)237 data.freeze()238 assert tree.rewrite(b) == (b[:2], Status.VALID)239def test_child_becomes_exhausted_after_split():240 tree = DataTree()241 data = ConjectureData.for_buffer([0, 0], observer=tree.new_observer())242 data.draw_bits(8)243 data.draw_bits(8, forced=0)244 data.freeze()245 data = ConjectureData.for_buffer([1, 0], observer=tree.new_observer())246 data.draw_bits(8)247 data.draw_bits(8)248 data.freeze()249 assert not tree.is_exhausted250 assert tree.root.transition.children[0].is_exhausted251def test_will_generate_novel_prefix_to_avoid_exhausted_branches():252 tree = DataTree()253 data = ConjectureData.for_buffer([1], observer=tree.new_observer())254 data.draw_bits(1)255 data.freeze()256 data = ConjectureData.for_buffer([0, 1], observer=tree.new_observer())257 data.draw_bits(1)258 data.draw_bits(8)259 data.freeze()260 prefix = list(tree.generate_novel_prefix(Random(0)))261 assert len(prefix) == 2262 assert prefix[0] == 0263def test_will_mark_changes_in_discard_as_flaky():264 tree = DataTree()265 data = ConjectureData.for_buffer([1, 1], observer=tree.new_observer())266 data.start_example(10)267 data.draw_bits(1)268 data.stop_example()269 data.draw_bits(1)270 data.freeze()271 data = ConjectureData.for_buffer([1, 1], observer=tree.new_observer())272 data.start_example(10)273 data.draw_bits(1)274 with pytest.raises(Flaky):...
tstl_hypothesis.py
Source:tstl_hypothesis.py
...44def choice(data, n):45 n_bits = n.bit_length()46 while True:47 data.start_example(CHOICE)48 i = data.draw_bits(n_bits)49 if i >= n:50 data.stop_example(discard=True)51 continue52 data.stop_example()53 return i54FILTERED_ACTIONS = calc_label_from_name("FILTERED ACTIONS")55@click.group()56@click.option('--sut-file')57@click.option('--log-file')58@click.option('--seed')59@click.option('--n-steps')60@click.pass_context61def tstl(ctx, sut_file, log_file, seed, n_steps):62 eng.BUFFER_SIZE = 10 ** 663 eng.MAX_SHRINKS = 10 ** 664 with open(sut_file) as i:65 source = i.read()66 exec_globals = {}67 exec(source, exec_globals)68 sut_class = exec_globals["sut"]69 seed = int(seed)70 n_steps = int(n_steps)71 def run_tstl(data):72 data.extra_information.tstl_steps = getattr(data, 'tstl_steps', [])73 run_checks = False74 count = 075 sut = sut_class()76 sut.restart()77 random.seed(0)78 actions = list(sut.actions())79 actions.sort(key=lambda t: t[0])80 while True:81 # We draw a value which in normal random mode will almost never be82 # zero, but when we are shrinking can be easily turned into a zero.83 data.start_example(STEP_LABEL)84 if count >= n_steps:85 should_continue = data.draw_bits(64, forced=0)86 else:87 should_continue = data.draw_bits(64)88 if not should_continue:89 data.stop_example()90 break91 count_discarded = data.draw_bits(64) == 092 count += 193 if count_discarded:94 data.start_example(CHOICE)95 i = choice(data, len(actions))96 _, guard, _ = actions[i]97 if not guard():98 data.stop_example(discard=False)99 continue100 else:101 data.stop_example(discard=False)102 else:103 for _ in range(3):104 data.start_example(CHOICE)105 i = choice(data, len(actions))106 _, guard, _ = actions[i]107 succeeded = guard()108 data.stop_example(discard=not succeeded)109 if succeeded:110 break111 else:112 data.start_example(FILTERED_ACTIONS)113 valid_actions = [i for i in range(len(actions)) if actions[i][1]()]114 if not valid_actions:115 data.mark_invalid()116 j = choice(data, len(valid_actions))117 i = valid_actions[j]118 data.stop_example(discard=True)119 data.draw_bits(len(actions).bit_length(), forced=i)120 name, guard, action = actions[i]121 assert guard()122 data.stop_example()123 data.extra_information.tstl_steps.append(name)124 failure = None125 try:126 with timeout(5):127 action()128 if run_checks and not sut.check():129 failure = sut.failure()130 except TimeoutExpired:131 data.mark_invalid()132 # FIXME: Sympy specific hack133 except RecursionError:134 data.mark_invalid()135 except StopTest:136 raise137 except Exception:138 failure = sys.exc_info()139 if failure is not None:140 if not data.frozen:141 data.draw_bits(64, forced=0)142 143 error_type, _, tb = failure144 origin = traceback.extract_tb(tb)[-1]145 filename = origin[0]146 lineno = origin[1]147 data.mark_interesting((error_type.__name__, filename, lineno))148 log = open(log_file, "w")149 def log_data(data):150 log_data = [151 hashlib.sha1(data.buffer).hexdigest()[:10],152 len(data.buffer),153 len(data.extra_information.tstl_steps),154 data.status.name,155 ]...
progressbar.py
Source:progressbar.py
1import curses2import logging3BLOCK_UNICODE = ' ââââââââ'4def ProgressBar(win, width, value, max_value, text, bar_color, remainder_color,5 text_color):6 value_bits = int(8 * width * value / max_value)7 left_width = value_bits // 88 if left_width >= len(text):9 win.addstr(text.ljust(left_width), curses.color_pair(bar_color))10 else:11 win.addstr(' ' * left_width, curses.color_pair(bar_color))12 remainer_width = value_bits % 813 if left_width < width:14 win.addstr(BLOCK_UNICODE[remainer_width],15 curses.color_pair(remainder_color))16 right_width = width - left_width - 1 # -1 for remainder17 if left_width >= len(text):18 win.addstr(' ' * right_width, curses.color_pair(text_color))19 else:20 win.addstr(text.ljust(right_width), curses.color_pair(text_color))21def WriteBarMeat(win, width, left_text, middle_text, right_text, color):22 left_text = left_text + ' ' if left_text else ''23 right_text = ' ' + right_text if right_text else ''24 middle_text = middle_text if middle_text else ''25 win.addstr(26 f'{left_text}'27 f'{middle_text.center(width - len(left_text) - len(right_text))}'28 f'{right_text}', curses.color_pair(color))29def WdlBar(win, width, w, d, l, white_bar, draw_bar, black_bar, white_to_draw,30 draw_to_black, white_to_black):31 total = w + d + l32 white_bits = int(8 * width * w / total)33 black_bits = int(8 * width * l / total)34 draw_bits = width * 8 - white_bits - black_bits35 if white_bits % 8 > 0 and white_bits // 8 == (white_bits + draw_bits) // 8:36 white_bits += draw_bits // 237 black_bits += draw_bits - draw_bits // 238 draw_bits = 039 white_width = white_bits // 840 black_width = black_bits // 841 draw_width = max(0, (draw_bits - (8 - white_bits % 8) % 8) // 8)42 white_text = f'W={w}'43 black_text = f'B={l}'44 draw_text = f'D={d}'45 layouts = [46 " W D B ",47 " WD B ",48 " W DB ",49 " WDB ",50 " WD B " if w > l else " W DB ",51 " W DB " if w > l else " WD B ",52 "WDB " if w > l else " WDB",53 " WDB" if w > l else "WDB ",54 ]55 def label_length(layout):56 res = 057 for c in layout:58 if c != ' ':59 if res:60 res += 161 if c == 'W':62 res += len(white_text)63 elif c == 'B':64 res += len(black_text)65 elif c == 'D':66 res += len(draw_text)67 return res68 def get_text(char):69 if char == 'W':70 return white_text71 elif char == 'B':72 return black_text73 elif char == 'D':74 return draw_text75 return None76 def draw_meat(layout, width, color):77 WriteBarMeat(win, width, get_text(layout[0]), get_text(layout[1]),78 get_text(layout[2]), color)79 for layout in layouts:80 (lw, ld, lb) = [layout[i:i + 3] for i in range(0, len(layout), 3)]81 if white_width < label_length(lw): continue82 if draw_width < label_length(ld): continue83 if black_width < label_length(lb): continue84 draw_meat(lw, white_width, white_bar)85 if white_bits % 8 > 0:86 win.addstr(87 BLOCK_UNICODE[white_bits % 8],88 curses.color_pair(89 white_to_draw if draw_bits > 0 else white_to_black))90 draw_meat(ld, draw_width, draw_bar)91 if draw_bits and (white_bits + draw_bits) % 8 > 0:92 win.addstr(BLOCK_UNICODE[(white_bits + draw_bits) % 8],93 curses.color_pair(draw_to_black))94 draw_meat(lb, black_width, black_bar)...
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