1"""
2Test that the lldb editline handling is configured correctly.
3"""
4
5
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11from lldbsuite.test.lldbpexpect import PExpectTest
12
13
14class EditlineTest(PExpectTest):
15
16    @skipIfAsan
17    @skipIfEditlineSupportMissing
18    @skipIf(oslist=["linux"], archs=["arm", "aarch64"])
19    def test_left_right_arrow(self):
20        """Test that ctrl+left/right arrow navigates words correctly.
21
22        Note: just sending escape characters to pexpect and checking the buffer
23        doesn't work well, so we run real commands. We want to type
24        "help command" while exercising word-navigation, so type it as below,
25        where [] indicates cursor position.
26
27        1. Send "el rint"  -> "el rint[]"
28        2. Ctrl+left once  -> "el []rint"
29        3. Send "p"        -> "el p[]rint"
30        4. Ctrl+left twice -> "[]el print"
31        5. Send "h"        -> "h[]el print"
32        6. Ctrl+right      -> "hel[] print"
33        7. Send "p"        -> "help print"
34        """
35        self.launch()
36
37        escape_pairs = [
38            ("\x1b[1;5D", "\x1b[1;5C"),
39            ("\x1b[5D", "\x1b[5C"),
40            ("\x1b\x1b[D", "\x1b\x1b[C"),
41        ]
42        for (l_escape, r_escape) in escape_pairs:
43            self.expect("el rint{L}p{L}{L}h{R}p".format(
44                L=l_escape, R=r_escape), substrs=["Syntax: print"])
45
46        self.quit()
47