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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webdriver/bidi/moz/debugging/set_breakpoint/location.py - WPT Dashboard Interop Dashboard
import asyncio
import pytest
from webdriver.bidi.modules.script import ContextTarget
pytestmark = pytest.mark.asyncio
from .. import PAUSED_EVENT, RESUMED_EVENT
async def test_set_breakpoint_simple(
bidi_session, new_tab, enable_debugging, inline, set_breakpoint
):
await enable_debugging(contexts=[new_tab["context"]])
# inline() generates:
# Line 1: <!doctype html>
# Line 2: <meta charset=UTF-8>
# Line 3: <script>
# Line 4: function foo() {
# Line 5: const x = 42;
# Line 6: return x;
url = inline(
"""<script>
function foo() {
const x = 42;
return x;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 6})
async def test_set_breakpoint_and_pause(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
assert_pause_and_resume,
set_breakpoint,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function foo() {
const x = 42;
return x;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 6})
result = await assert_pause_and_resume(new_tab, expression="foo()", line=6)
assert result["type"] == "number"
assert result["value"] == 42
async def test_breakpoint_with_column(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
assert_pause_and_resume,
set_breakpoint,
wait_for_event,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function bar() {
let y, z;
y = 10; z = 42;
return y * z;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
# Line 1: <!doctype html>
# Line 2: <meta charset=UTF-8>
# Line 3: <script>
# Line 4: function bar() {
# Line 5: let y, z;
# Line 6: y = 10; z = 42;
# ^ ^
# Columns: 5 13
await set_breakpoint(location={"url": url, "line": 6, "column": 5})
await set_breakpoint(location={"url": url, "line": 6, "column": 13})
on_paused = wait_for_event(PAUSED_EVENT)
eval_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="bar()",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event = await on_paused
assert paused_event["context"] == new_tab["context"]
assert paused_event["line"] == 6
assert paused_event["column"] == 5
async def assert_value(variable_name, expected_value):
expect_undefined = expected_value is None
expression = (
variable_name if not expect_undefined else f"typeof {variable_name}"
)
result = await bidi_session.script.evaluate(
expression=expression,
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
if expect_undefined:
assert result["type"] == "string"
assert result["value"] == "undefined"
else:
assert result["type"] == "number"
assert result["value"] == expected_value
# At column 5, y and z should be undefined
await assert_value("y", expected_value=None)
await assert_value("z", expected_value=None)
# Resume
on_paused = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.resume(context=new_tab["context"])
paused_event = await on_paused
# Expect to hit column 13 now
assert paused_event["context"] == new_tab["context"]
assert paused_event["line"] == 6
assert paused_event["column"] == 13
# At column 13, y should now be set to 10, z should still be undefined.
await assert_value("y", expected_value=10)
await assert_value("z", expected_value=None)
await bidi_session.moz.debugging.resume(context=new_tab["context"])
result = await eval_task
assert result["type"] == "number"
assert result["value"] == 420