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"""
Test completion for multiline expressions.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test.lldbpexpect import PExpectTest
class MultilineCompletionTest(PExpectTest):
mydir = TestBase.compute_mydir(__file__)
def start_expression_editor(self):
""" Starts the multiline expression editor. """
self.child.send("expression\n")
self.child.expect_exact("terminate with an empty line to evaluate")
def exit_expression_editor(self):
""" Exits the multiline expression editor. """
# Send a newline to finish the current line. The second newline will
# finish the new empty line which will exit the editor. The space at the
# start prevents that the first newline already exits the editor (in
# case the current line of the editor is already empty when this
# function is called).
self.child.send(" \n\n")
self.expect_prompt()
# PExpect uses many timeouts internally and doesn't play well
# under ASAN on a loaded machine..
@skipIfAsan
@skipIfEditlineSupportMissing
@expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr49408')
def test_basic_completion(self):
"""Test that we can complete a simple multiline expression"""
self.build()
self.launch(executable=self.getBuildArtifact("a.out"), dimensions=(100,500))
self.expect("b main", substrs=["Breakpoint 1", "address ="])
self.expect("run", substrs=["stop reason = breakpoint 1"])
self.start_expression_editor()
self.child.send("to_\t")
# editline might move the cursor back to the start of the line via \r
# and then back to its original position.
self.child.expect(re.compile(b"to_(\r" + self.cursor_forward_escape_seq(len(" 1: to_")) + b")?complete"))
self.exit_expression_editor()
# Check that completion empty input in a function with only one
# local variable works.
self.expect("breakpoint set -p 'break in single_local_func'",
substrs=["Breakpoint 2"])
self.expect("continue", substrs=["stop reason = breakpoint 2"])
self.start_expression_editor()
self.child.send("\t")
# Only one local, so this will directly insert 'only_local' with a
# trailing space to signal a final completion.
self.child.expect_exact("only_local ")
self.exit_expression_editor()
self.quit()
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