rich/tests/test_pretty.py

301 lines
7.6 KiB
Python

from array import array
from collections import defaultdict, UserDict, UserList
from dataclasses import dataclass, field
import io
import sys
from typing import List
import attr
import pytest
from rich.console import Console
from rich.pretty import install, Pretty, pprint, pretty_repr, Node
skip_py36 = pytest.mark.skipif(
sys.version_info.minor == 6 and sys.version_info.major == 3,
reason="rendered differently on py3.6",
)
skip_py37 = pytest.mark.skipif(
sys.version_info.minor == 7 and sys.version_info.major == 3,
reason="rendered differently on py3.7",
)
skip_py38 = pytest.mark.skipif(
sys.version_info.minor == 8 and sys.version_info.major == 3,
reason="rendered differently on py3.8",
)
skip_py39 = pytest.mark.skipif(
sys.version_info.minor == 9 and sys.version_info.major == 3,
reason="rendered differently on py3.9",
)
skip_py310 = pytest.mark.skipif(
sys.version_info.minor == 10 and sys.version_info.major == 3,
reason="rendered differently on py3.10",
)
def test_install():
console = Console(file=io.StringIO())
dh = sys.displayhook
install(console)
sys.displayhook("foo")
assert console.file.getvalue() == "'foo'\n"
assert sys.displayhook is not dh
def test_pretty():
test = {
"foo": [1, 2, 3, (4, 5, {6}, 7, 8, {9}), {}],
"bar": {"egg": "baz", "words": ["Hello World"] * 10},
False: "foo",
True: "",
"text": ("Hello World", "foo bar baz egg"),
}
result = pretty_repr(test, max_width=80)
print(result)
# print(repr(result))
expected = "{\n 'foo': [1, 2, 3, (4, 5, {6}, 7, 8, {9}), {}],\n 'bar': {\n 'egg': 'baz',\n 'words': [\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World',\n 'Hello World'\n ]\n },\n False: 'foo',\n True: '',\n 'text': ('Hello World', 'foo bar baz egg')\n}"
print(expected)
assert result == expected
@dataclass
class ExampleDataclass:
foo: int
bar: str
ignore: int = field(repr=False)
baz: List[str] = field(default_factory=list)
last: int = field(default=1, repr=False)
def test_pretty_dataclass():
dc = ExampleDataclass(1000, "Hello, World", 999, ["foo", "bar", "baz"])
result = pretty_repr(dc, max_width=80)
print(repr(result))
assert (
result
== "ExampleDataclass(foo=1000, bar='Hello, World', baz=['foo', 'bar', 'baz'])"
)
result = pretty_repr(dc, max_width=16)
print(repr(result))
assert (
result
== "ExampleDataclass(\n foo=1000,\n bar='Hello, World',\n baz=[\n 'foo',\n 'bar',\n 'baz'\n ]\n)"
)
dc.bar = dc
result = pretty_repr(dc, max_width=80)
print(repr(result))
assert result == "ExampleDataclass(foo=1000, bar=..., baz=['foo', 'bar', 'baz'])"
def test_small_width():
test = ["Hello world! 12345"]
result = pretty_repr(test, max_width=10)
expected = "[\n 'Hello world! 12345'\n]"
assert result == expected
def test_broken_repr():
class BrokenRepr:
def __repr__(self):
1 / 0
test = [BrokenRepr()]
result = pretty_repr(test)
expected = "[<repr-error 'division by zero'>]"
assert result == expected
def test_recursive():
test = []
test.append(test)
result = pretty_repr(test)
expected = "[...]"
assert result == expected
def test_defaultdict():
test_dict = defaultdict(int, {"foo": 2})
result = pretty_repr(test_dict)
assert result == "defaultdict(<class 'int'>, {'foo': 2})"
def test_array():
test_array = array("I", [1, 2, 3])
result = pretty_repr(test_array)
assert result == "array('I', [1, 2, 3])"
def test_tuple_of_one():
assert pretty_repr((1,)) == "(1,)"
def test_node():
node = Node("abc")
assert pretty_repr(node) == "abc: "
def test_indent_lines():
console = Console(width=100, color_system=None)
console.begin_capture()
console.print(Pretty([100, 200], indent_guides=True), width=8)
expected = """\
[
│ 100,
│ 200
]
"""
result = console.end_capture()
print(repr(result))
print(result)
assert result == expected
def test_pprint():
console = Console(color_system=None)
console.begin_capture()
pprint(1, console=console)
assert console.end_capture() == "1\n"
def test_pprint_max_values():
console = Console(color_system=None)
console.begin_capture()
pprint([1, 2, 3, 4, 5, 6, 7, 8, 9, 0], console=console, max_length=2)
assert console.end_capture() == "[1, 2, ... +8]\n"
def test_pprint_max_items():
console = Console(color_system=None)
console.begin_capture()
pprint({"foo": 1, "bar": 2, "egg": 3}, console=console, max_length=2)
assert console.end_capture() == """{'foo': 1, 'bar': 2, ... +1}\n"""
def test_pprint_max_string():
console = Console(color_system=None)
console.begin_capture()
pprint(["Hello" * 20], console=console, max_string=8)
assert console.end_capture() == """['HelloHel'+92]\n"""
def test_tuples():
console = Console(color_system=None)
console.begin_capture()
pprint((1,), console=console)
pprint((1,), expand_all=True, console=console)
pprint(((1,),), expand_all=True, console=console)
result = console.end_capture()
print(repr(result))
expected = "(1,)\n(\n│ 1,\n)\n(\n│ (\n│ │ 1,\n│ ),\n)\n"
print(result)
print("--")
print(expected)
assert result == expected
def test_newline():
console = Console(color_system=None)
console.begin_capture()
console.print(Pretty((1,), insert_line=True, expand_all=True))
result = console.end_capture()
expected = "\n(\n 1,\n)\n"
assert result == expected
def test_empty_repr():
class Foo:
def __repr__(self):
return ""
assert pretty_repr(Foo()) == ""
def test_attrs():
@attr.define
class Point:
x: int
y: int
foo: str = attr.field(repr=str.upper)
z: int = 0
result = pretty_repr(Point(1, 2, foo="bar"))
print(repr(result))
expected = "Point(x=1, y=2, foo=BAR, z=0)"
assert result == expected
def test_attrs_empty():
@attr.define
class Nada:
pass
result = pretty_repr(Nada())
print(repr(result))
expected = "Nada()"
assert result == expected
@skip_py36
@skip_py310
def test_attrs_broken():
@attr.define
class Foo:
bar: int
foo = Foo(1)
del foo.bar
result = pretty_repr(foo)
print(repr(result))
expected = "Foo(bar=AttributeError('bar'))"
assert result == expected
@skip_py36
@skip_py37
@skip_py38
@skip_py39
def test_attrs_broken_310():
@attr.define
class Foo:
bar: int
foo = Foo(1)
del foo.bar
result = pretty_repr(foo)
print(repr(result))
expected = "Foo(bar=AttributeError(\"'Foo' object has no attribute 'bar'\"))"
assert result == expected
def test_user_dict():
class D1(UserDict):
pass
class D2(UserDict):
def __repr__(self):
return "FOO"
d1 = D1({"foo": "bar"})
d2 = D2({"foo": "bar"})
result = pretty_repr(d1, expand_all=True)
print(repr(result))
assert result == "{\n 'foo': 'bar'\n}"
result = pretty_repr(d2, expand_all=True)
print(repr(result))
assert result == "FOO"
def test_lying_attribute():
"""Test getattr doesn't break rich repr protocol"""
class Foo:
def __getattr__(self, attr):
return "foo"
foo = Foo()
result = pretty_repr(foo)
assert "Foo" in result