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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webdriver/bidi/moz/debugging/step_over/context.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_step_over_basic(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
wait_for_event,
wait_for_future_safe,
set_breakpoint,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function test() {
const a = 1;
const b = 2;
const c = 3;
return a + b + c;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 6})
on_paused = wait_for_event(PAUSED_EVENT)
eval_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="test()",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event1 = await wait_for_future_safe(on_paused)
assert paused_event1["line"] == 6
on_paused2 = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event2 = await wait_for_future_safe(on_paused2)
assert paused_event2["line"] == 7
assert paused_event2["url"] == url
on_paused3 = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event3 = await wait_for_future_safe(on_paused3)
assert paused_event3["line"] == 8
await bidi_session.moz.debugging.resume(context=new_tab["context"])
result = await eval_task
assert result["type"] == "number"
assert result["value"] == 6
async def test_step_over_skips_function_call(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
wait_for_event,
wait_for_future_safe,
set_breakpoint,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function helper() {
const x = 10;
return x * 2;
}
function test() {
const a = 1;
const b = helper();
const c = 3;
return a + b + c;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 11})
on_paused = wait_for_event(PAUSED_EVENT)
eval_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="test()",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event1 = await wait_for_future_safe(on_paused)
assert paused_event1["line"] == 11
on_paused2 = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event2 = await wait_for_future_safe(on_paused2)
assert paused_event2["line"] == 12
assert paused_event2["url"] == url
assert len(paused_event2["callFrames"]) >= 1
assert paused_event2["callFrames"][0]["functionName"] == "test"
await bidi_session.moz.debugging.resume(context=new_tab["context"])
result = await eval_task
assert result["type"] == "number"
assert result["value"] == 24
async def test_step_over_in_nested_pause(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
wait_for_event,
wait_for_future_safe,
set_breakpoint,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function test(n) {
const a = n + 1;
const b = a + 1;
return b;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 6})
on_paused = wait_for_event(PAUSED_EVENT)
outer_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="test(1)",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 6
# Step over once, so that the outer pause is at line 7 and no longer at the
# location of the breakpoint.
on_paused = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 7
# Evaluating in the paused frame hits the breakpoint again and pauses a
# second time, in a new frame, at line 6.
on_paused = wait_for_event(PAUSED_EVENT)
inner_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="test(10)",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 6
# Stepping in the nested pause should move to the next line of the nested
# frame, and should not be impacted by the location of the enclosing pause.
on_paused = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 7
await bidi_session.moz.debugging.resume(context=new_tab["context"])
inner_result = await wait_for_future_safe(inner_task)
assert inner_result == {"type": "number", "value": 12}
await bidi_session.moz.debugging.resume(context=new_tab["context"])
outer_result = await wait_for_future_safe(outer_task)
assert outer_result == {"type": "number", "value": 3}
async def test_step_over_emits_resumed_and_paused(
bidi_session,
new_tab,
enable_debugging,
inline,
subscribe_events,
wait_for_event,
wait_for_future_safe,
set_breakpoint,
):
await subscribe_events([PAUSED_EVENT, RESUMED_EVENT])
await enable_debugging(contexts=[new_tab["context"]])
url = inline(
"""<script>
function test() {
const a = 1;
const b = 2;
return a + b;
}
</script>"""
)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await set_breakpoint(location={"url": url, "line": 6})
on_paused = wait_for_event(PAUSED_EVENT)
eval_task = asyncio.create_task(
bidi_session.script.evaluate(
expression="test()",
target=ContextTarget(new_tab["context"]),
await_promise=False,
)
)
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 6
events = []
async def on_event(method, _data):
events.append(method)
remove_paused_listener = bidi_session.add_event_listener(PAUSED_EVENT, on_event)
remove_resumed_listener = bidi_session.add_event_listener(RESUMED_EVENT, on_event)
# Stepping resumes the paused frame, so a resumed event should be emitted
# before pausing again at the next location.
on_paused = wait_for_event(PAUSED_EVENT)
await bidi_session.moz.debugging.step_over(context=new_tab["context"])
paused_event = await wait_for_future_safe(on_paused)
assert paused_event["line"] == 7
assert events == [RESUMED_EVENT, PAUSED_EVENT]
remove_paused_listener()
remove_resumed_listener()
await bidi_session.moz.debugging.resume(context=new_tab["context"])
result = await wait_for_future_safe(eval_task)
assert result["type"] == "number"
assert result["value"] == 3