105 lines · python
1"""2Tests navigating in the multiline expression editor.3"""4 5import lldb6from lldbsuite.test.decorators import *7from lldbsuite.test.lldbtest import *8from lldbsuite.test.lldbpexpect import PExpectTest9 10 11class TestCase(PExpectTest):12 arrow_up = "\033[A"13 arrow_down = "\033[B"14 15 # PExpect uses many timeouts internally and doesn't play well16 # under ASAN on a loaded machine..17 @skipIfAsan18 @skipIfEditlineSupportMissing19 @expectedFailureAll(oslist=["freebsd"], bugnumber="llvm.org/pr48316")20 @skipIf(oslist=["linux"], archs=["arm$", "aarch64"]) # Randomly fails on buildbot21 def test_nav_arrow_up(self):22 """Tests that we can navigate back to the previous line with the up arrow"""23 self.launch()24 25 # Start multiline expression mode by just running 'expr'26 self.child.sendline("expr")27 self.child.expect_exact("terminate with an empty line to evaluate")28 # Create a simple integer expression '123' and press enter.29 self.child.send("123\n")30 # We should see the prompt for the second line of our expression.31 self.child.expect_exact("2: ")32 # Go back to the first line and change 123 to 124.33 # Then press enter twice to evaluate our expression.34 self.child.send(self.arrow_up + "\b4\n\n")35 # The result of our expression should be 124 (our edited expression)36 # and not 123 (the one we initially typed).37 self.child.expect_exact("(int) $0 = 124")38 39 self.quit()40 41 @skipIfAsan42 @skipIfEditlineSupportMissing43 @expectedFailureAll(oslist=["freebsd"], bugnumber="llvm.org/pr48316")44 @skipIf(oslist=["linux"], archs=["arm$", "aarch64"]) # Randomly fails on buildbot45 def test_nav_arrow_down(self):46 """Tests that we can navigate to the next line with the down arrow"""47 self.launch()48 49 # Start multiline expression mode by just running 'expr'50 self.child.sendline("expr")51 self.child.expect_exact("terminate with an empty line to evaluate")52 # Create a simple integer expression '111' and press enter.53 self.child.send("111\n")54 # We should see the prompt for the second line of our expression.55 self.child.expect_exact("2: ")56 # Create another simple integer expression '222'.57 self.child.send("222")58 # Go back to the first line and change '111' to '111+' to make59 # an addition operation that spans two lines. We need to go up to60 # test that we can go back down again.61 self.child.send(self.arrow_up + "+")62 # Go back down to our second line and change '222' to '223'63 # so that the full expression is now '111+\n223'.64 # Then press enter twice to evaluate the expression.65 self.child.send(self.arrow_down + "\b3\n\n")66 # The result of our expression '111 + 223' should be '334'.67 # If the expression is '333' then arrow down failed to get68 # us back to the second line.69 self.child.expect_exact("(int) $0 = 334")70 71 self.quit()72 73 @skipIfAsan74 @skipIfEditlineSupportMissing75 @skipIf(oslist=["linux"], archs=["arm$", "aarch64"]) # Randomly fails on buildbot76 def test_nav_arrow_up_empty(self):77 """78 Tests that navigating with the up arrow doesn't crash and skips79 empty history entries.80 """81 self.launch()82 83 # Create a real history entry '456' and then follow up with an84 # empty entry (that shouldn't be saved).85 self.child.sendline("expr")86 self.child.expect_exact("terminate with an empty line to evaluate")87 self.child.send("456\n\n")88 self.expect_prompt()89 90 self.child.sendline("expr")91 self.child.expect_exact("terminate with an empty line to evaluate")92 self.child.send("\n")93 self.expect_prompt()94 95 # The up arrow should recall the actual history entry and not the96 # the empty entry (as that one shouldn't have been saved).97 self.child.sendline("expr")98 self.child.expect_exact("terminate with an empty line to evaluate")99 self.child.send(self.arrow_up)100 self.child.expect_exact("456")101 self.child.send("\n\n")102 self.expect_prompt()103 104 self.quit()105