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# Copyright (c) Microsoft Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import re
import pytest
from playwright.sync_api import Locator, Page, expect
def _unshift(snapshot: str) -> str:
lines = snapshot.split("\n")
whitespace_prefix_length = 100
for line in lines:
if not line.strip():
continue
match = re.match(r"^(\s*)", line)
if match and len(match[1]) < whitespace_prefix_length:
whitespace_prefix_length = len(match[1])
return "\n".join(
[line[whitespace_prefix_length:] for line in lines if line.strip()]
)
def check_and_match_snapshot(locator: Locator, snapshot: str) -> None:
assert locator.aria_snapshot() == _unshift(snapshot)
expect(locator).to_match_aria_snapshot(snapshot)
def test_should_snapshot(page: Page) -> None:
page.set_content("<h1>title</h1>")
check_and_match_snapshot(
page.locator("body"),
"""
- heading "title" [level=1]
""",
)
def test_should_snapshot_list(page: Page) -> None:
page.set_content("<h1>title</h1><h1>title 2</h1>")
check_and_match_snapshot(
page.locator("body"),
"""
- heading "title" [level=1]
- heading "title 2" [level=1]
""",
)
def test_should_snapshot_list_with_list(page: Page) -> None:
page.set_content("<ul><li>one</li><li>two</li></ul>")
check_and_match_snapshot(
page.locator("body"),
"""
- list:
- listitem: one
- listitem: two
""",
)
def test_should_snapshot_list_with_accessible_name(page: Page) -> None:
page.set_content('<ul aria-label="my list"><li>one</li><li>two</li></ul>')
check_and_match_snapshot(
page.locator("body"),
"""
- list "my list":
- listitem: one
- listitem: two
""",
)
def test_should_snapshot_complex(page: Page) -> None:
page.set_content('<ul><li><a href="about:blank">link</a></li></ul>')
check_and_match_snapshot(
page.locator("body"),
"""
- list:
- listitem:
- link "link":
- /url: about:blank
""",
)
def test_should_snapshot_with_unexpected_children_equal(page: Page) -> None:
page.set_content(
"""
<ul>
<li>One</li>
<li>Two</li>
<li>Three</li>
</ul>
"""
)
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- listitem: One
- listitem: Three
""",
)
with pytest.raises(AssertionError):
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- /children: equal
- listitem: One
- listitem: Three
""",
timeout=1000,
)
def test_should_snapshot_with_unexpected_children_deep_equal(page: Page) -> None:
page.set_content(
"""
<ul>
<li>
<ul>
<li>1.1</li>
<li>1.2</li>
</ul>
</li>
</ul>
"""
)
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- listitem:
- list:
- listitem: 1.1
""",
)
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- /children: equal
- listitem:
- list:
- listitem: 1.1
""",
)
with pytest.raises(AssertionError):
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- /children: deep-equal
- listitem:
- list:
- listitem: 1.1
""",
timeout=1000,
)
def test_should_snapshot_with_restored_contain_mode_inside_deep_equal(
page: Page,
) -> None:
page.set_content(
"""
<ul>
<li>
<ul>
<li>1.1</li>
<li>1.2</li>
</ul>
</li>
</ul>
"""
)
with pytest.raises(AssertionError):
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- /children: deep-equal
- listitem:
- list:
- listitem: 1.1
""",
timeout=1000,
)
expect(page.locator("body")).to_match_aria_snapshot(
"""
- list:
- /children: deep-equal
- listitem:
- list:
- /children: contain
- listitem: 1.1
""",
)
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