def test_next_skips_all_nested_calls(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None)); ok(c); ok(c)
c.write(Message("next", None)); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(interp, """
function F() {
return G();
}
function G() {
return 42;
}
$a = F();
$a++;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange", ["<input>", "8", "<main>",
"$a = F();"])
assert c.read() == Message(">", None)
assert c.read() == Message("linechange", ["<input>", "9", "<main>",
"$a++;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_basic_debugger(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"]))
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
self.run(interp, """
function f() {
}
""")
def c1():
assert c.read() == Message("echo", ["stop breakpoint f"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("continue", None))
ok(c)
thread.start_new_thread(c1, ())
self.run(interp, "f();")
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def run_interactive(read_fd, write_fd):
import readline # for raw_input() below
con = Connection(read_fd, write_fd)
last_command = ''
while True:
try:
msg = con.read()
except EOFError:
break
if msg.command == '>':
line = raw_input('> ')
if not line: # Ctrl-D
break
line = line.strip()
if not line:
line = last_command
else:
last_command = line
lst = line.split(" ", 1)
if len(lst) == 1:
con.write(Message(lst[0], None))
else:
con.write(Message(lst[0], [lst[1]]))
else:
print msg.command, " ".join(msg.args)
con.write(Message(".", None))
def run_interactive(read_fd, write_fd):
import readline # for raw_input() below
con = Connection(read_fd, write_fd)
last_command = ''
while True:
try:
msg = con.read()
except EOFError:
break
if msg.command == '>':
line = raw_input('> ')
if not line: # Ctrl-D
break
line = line.strip()
if not line:
line = last_command
else:
last_command = line
lst = line.split(" ", 1)
if len(lst) == 1:
con.write(Message(lst[0], None))
else:
con.write(Message(lst[0], [lst[1]]))
else:
print msg.command, " ".join(msg.args)
con.write(Message(".", None))
def test_basic_debugger(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"])); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
self.run(interp, """
function f() {
}
""")
def c1():
assert c.read() == Message("echo", ["stop breakpoint f"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("continue", None)); ok(c)
thread.start_new_thread(c1, ())
self.run(interp, "f();")
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_empty_backtrace(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("backtrace", None)); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
self.run(interp, "")
assert c.read() == Message(">", None)
assert c.read() == Message("warn", ["empty backtrace"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_basic_pipe_communication(self):
d = Connection(self.read_fd1, self.write_fd2)
os.write(self.write_fd1, "breakpoint a;")
assert d.read() == Message("breakpoint", ["a"])
os.write(self.write_fd1, "echo a;echo")
assert d.read() == Message("echo", ["a"])
os.write(self.write_fd1, " b;echo a;echo b;echo c;")
assert d.read() == Message("echo", ["b"])
assert d.read() == Message("echo", ["a"])
assert d.read() == Message("echo", ["b"])
assert d.read() == Message("echo", ["c"])
d.write(Message("foo", ["a", "b"]))
s = os.read(self.read_fd2, 100)
assert s == "foo a b;"
def test_class_breakpoint_and_traceback(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["klass::method"]))
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
def c1():
assert c.read() == Message(">", None)
assert c.read() == Message("echo",
["Breakpoint set klass::method"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
assert c.read() == Message("echo",
["stop breakpoint klass::method"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$x"]))
ok(c)
c.write(Message("continue", None))
ok(c)
thread.start_new_thread(c1, ())
self.run(
interp, """
class klass {
function method($x) {
}
}
$x = new klass();
$x->method(13);
""")
assert c.read() == Message("echo", ["int(13)"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_empty_backtrace(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("backtrace", None)); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
self.run(interp, "")
assert c.read() == Message(">", None)
assert c.read() == Message("warn", ["empty backtrace"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_basic_pipe_communication(self):
d = Connection(self.read_fd1, self.write_fd2)
os.write(self.write_fd1, "breakpoint a;")
assert d.read() == Message("breakpoint", ["a"])
os.write(self.write_fd1, "echo a;echo")
assert d.read() == Message("echo", ["a"])
os.write(self.write_fd1, " b;echo a;echo b;echo c;")
assert d.read() == Message("echo", ["b"])
assert d.read() == Message("echo", ["a"])
assert d.read() == Message("echo", ["b"])
assert d.read() == Message("echo", ["c"])
d.write(Message("foo", ["a", "b"]))
s = os.read(self.read_fd2, 100)
assert s == "foo a b;"
def test_class_breakpoint_and_traceback(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["klass::method"])); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
def c1():
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set klass::method"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
assert c.read() == Message("echo", ["stop breakpoint klass::method"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$x"])); ok(c)
c.write(Message("continue", None)); ok(c)
thread.start_new_thread(c1, ())
self.run(interp, """
class klass {
function method($x) {
}
}
$x = new klass();
$x->method(13);
""")
assert c.read() == Message("echo", ["int(13)"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_skips_all_nested_calls(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None))
ok(c)
ok(c)
c.write(Message("next", None))
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(
interp, """
function F() {
return G();
}
function G() {
return 42;
}
$a = F();
$a++;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange",
["<input>", "8", "<main>", "$a = F();"])
assert c.read() == Message(">", None)
assert c.read() == Message("linechange",
["<input>", "9", "<main>", "$a++;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_is_step_if_not_a_call(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None))
ok(c)
ok(c)
c.write(Message("next", None))
ok(c)
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(interp, """
echo 'fff';
$a = 5;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange",
["<input>", "2", "<main>", "echo 'fff';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("linechange",
["<input>", "3", "<main>", "$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_step_precise_position(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("step", None))
ok(c)
ok(c)
c.write(Message("step", None))
ok(c)
c.write(Message("step", None))
ok(c)
ok(c)
c.write(Message("continue", None))
ok(c)
ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(
interp, """
$a = 5;
echo 'foobar';
echo 'baz';
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange",
["<input>", "2", "<main>", "$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message(
"linechange", ["<input>", "3", "<main>", "echo 'foobar';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(6) "foobar"'])
assert c.read() == Message("linechange",
["<input>", "4", "<main>", "echo 'baz';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert c.read() == Message("echo", ['string(3) "baz"'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_step(self):
pytest.xfail()
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"]))
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
def c1():
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
assert c.read() == Message("echo", ["stop breakpoint f"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$a"]))
assert c.read() == Message("echo", ["int(1)"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("next", None))
assert c.read() == Message(
"linechange", ["<input>", "3", "f", " $z = $a + $b + $c;"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("next", None))
assert c.read() == Message(
"linechange", ["<input>", "4", "f", " $a = $z - 3 + g();"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$z"]))
assert c.read() == Message("echo", ["int(6)"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("step", None))
assert c.read() == Message("echo", ["enter g"])
ok(c)
assert c.read() == Message("linechange",
["<input>", "8", "g", " return 13;"])
ok(c)
c.write(Message("continue", None))
ok(c)
thread.start_new_thread(c1, ())
self.run(
interp, """
function f($a, $b, $c) {
$z = $a + $b + $c;
$a = $z - 3 + g();
return $a;
}
function g() {
return 13;
}
f(1, 2, 3);
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_eval(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"])); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
self.run(interp, """
function f($a, $b, $x) {
}
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
ok(c)
c.write(Message("eval", ["$x"])); ok(c)
c.write(Message("backtrace", None)); ok(c)
c.write(Message("continue", None)); ok(c)
self.run(interp, """
f(1, 2, 3);
""")
assert c.read() == Message("echo", ["stop breakpoint f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["int(3)"])
assert c.read() == Message(">", None)
exp_traceback = ["<input>", "f", "2", "function f($a, $b, $x) {",
"<input>", "<main>", "2", "f(1, 2, 3);"]
msg = c.read()
assert msg == Message("traceback", exp_traceback)
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_does_not_reenter_when_returning(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None))
ok(c)
ok(c)
c.write(Message("step", None))
ok(c)
ok(c)
c.write(Message("next", None))
ok(c)
ok(c)
ok(c)
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(
interp, """
function F() {
echo 'fff';
}
F(); F();
$a = 5;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange",
["<input>", "5", "<main>", "F(); F();"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter F"])
assert c.read() == Message("linechange",
["<input>", "3", "F", " echo 'fff';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("echo", ["leave F"])
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("linechange",
["<input>", "6", "<main>", "$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_step(self):
pytest.xfail()
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"])); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
def c1():
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
assert c.read() == Message("echo", ["stop breakpoint f"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$a"]))
assert c.read() == Message("echo", ["int(1)"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("next", None))
assert c.read() == Message("linechange", ["<input>", "3", "f",
" $z = $a + $b + $c;"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("next", None))
assert c.read() == Message("linechange", ["<input>", "4", "f",
" $a = $z - 3 + g();"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("eval", ["$z"]))
assert c.read() == Message("echo", ["int(6)"])
ok(c)
assert c.read() == Message(">", None)
c.write(Message("step", None))
assert c.read() == Message("echo", ["enter g"])
ok(c)
assert c.read() == Message("linechange", ["<input>", "8", "g",
" return 13;"])
ok(c)
c.write(Message("continue", None))
ok(c)
thread.start_new_thread(c1, ())
self.run(interp, """
function f($a, $b, $c) {
$z = $a + $b + $c;
$a = $z - 3 + g();
return $a;
}
function g() {
return 13;
}
f(1, 2, 3);
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_is_step_if_not_a_call(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None)); ok(c); ok(c)
c.write(Message("next", None)); ok(c); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(interp, """
echo 'fff';
$a = 5;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange", ["<input>", "2", "<main>",
"echo 'fff';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("linechange", ["<input>", "3", "<main>",
"$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_step_precise_position(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("step", None)); ok(c); ok(c)
c.write(Message("step", None)); ok(c)
c.write(Message("step", None)); ok(c); ok(c)
c.write(Message("continue", None)); ok(c); ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(interp, """
$a = 5;
echo 'foobar';
echo 'baz';
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange", ["<input>", "2", "<main>",
"$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message("linechange", ["<input>", "3", "<main>",
"echo 'foobar';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(6) "foobar"'])
assert c.read() == Message("linechange", ["<input>", "4", "<main>",
"echo 'baz';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert c.read() == Message("echo", ['string(3) "baz"'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_eval(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("force_breakpoint", ["f"]))
ok(c)
c.write(Message("continue", None))
ok(c)
interp.debugger.run_debugger_loop(interp)
self.run(interp, """
function f($a, $b, $x) {
}
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Breakpoint set f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["Continuing"])
ok(c)
c.write(Message("eval", ["$x"]))
ok(c)
c.write(Message("backtrace", None))
ok(c)
c.write(Message("continue", None))
ok(c)
self.run(interp, """
f(1, 2, 3);
""")
assert c.read() == Message("echo", ["stop breakpoint f"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["int(3)"])
assert c.read() == Message(">", None)
exp_traceback = [
"<input>", "f", "2", "function f($a, $b, $x) {", "<input>",
"<main>", "2", "f(1, 2, 3);"
]
msg = c.read()
assert msg == Message("traceback", exp_traceback)
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()
def test_next_does_not_reenter_when_returning(self):
space = ObjSpace()
interp = MockInterpreter(space)
interp.setup_debugger(self.read_fd1, self.write_fd2)
c = Connection(self.read_fd2, self.write_fd1)
c.write(Message("next", None)); ok(c); ok(c)
c.write(Message("step", None)); ok(c); ok(c)
c.write(Message("next", None)); ok(c); ok(c); ok(c); ok(c)
c.write(Message("continue", None)); ok(c)
interp.debugger.run_debugger_loop(interp)
interp.echo = interp.print_expr # <= hack
self.run(interp, """
function F() {
echo 'fff';
}
F(); F();
$a = 5;
""")
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter <main>"])
assert c.read() == Message("linechange", ["<input>", "5", "<main>",
"F(); F();"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ["enter F"])
assert c.read() == Message("linechange", ["<input>", "3", "F",
" echo 'fff';"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("echo", ["leave F"])
assert c.read() == Message("echo", ['string(3) "fff"'])
assert c.read() == Message("linechange", ["<input>", "6", "<main>",
"$a = 5;"])
assert c.read() == Message(">", None)
assert c.read() == Message("echo", ['Continuing'])
assert not c.more_pending_messages()
assert not interp.debugger.conn.more_pending_messages()
assert not interp.msgs
interp.shutdown()