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a32f8dd195
Add a new decorator that checks if LLDB was build with editline support and mark the relevant tests as skipped when that's not the case.
70 lines
2.7 KiB
Python
70 lines
2.7 KiB
Python
"""
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Tests navigating in the multiline expression editor.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test.lldbpexpect import PExpectTest
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class TestCase(PExpectTest):
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mydir = TestBase.compute_mydir(__file__)
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arrow_up = "\033[A"
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arrow_down = "\033[B"
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# PExpect uses many timeouts internally and doesn't play well
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# under ASAN on a loaded machine..
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@skipIfAsan
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@skipIfEditlineSupportMissing
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def test_nav_arrow_up(self):
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"""Tests that we can navigate back to the previous line with the up arrow"""
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self.launch()
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# Start multiline expression mode by just running 'expr'
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self.child.sendline("expr")
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self.child.expect_exact("terminate with an empty line to evaluate")
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# Create a simple integer expression '123' and press enter.
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self.child.send("123\n")
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# We should see the prompt for the second line of our expression.
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self.child.expect_exact("2: ")
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# Go back to the first line and change 123 to 124.
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# Then press enter twice to evaluate our expression.
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self.child.send(self.arrow_up + "\b4\n\n")
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# The result of our expression should be 124 (our edited expression)
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# and not 123 (the one we initially typed).
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self.child.expect_exact("(int) $0 = 124")
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self.quit()
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@skipIfAsan
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@skipIfEditlineSupportMissing
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def test_nav_arrow_down(self):
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"""Tests that we can navigate to the next line with the down arrow"""
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self.launch()
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# Start multiline expression mode by just running 'expr'
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self.child.sendline("expr")
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self.child.expect_exact("terminate with an empty line to evaluate")
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# Create a simple integer expression '111' and press enter.
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self.child.send("111\n")
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# We should see the prompt for the second line of our expression.
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self.child.expect_exact("2: ")
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# Create another simple integer expression '222'.
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self.child.send("222")
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# Go back to the first line and change '111' to '111+' to make
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# an addition operation that spans two lines. We need to go up to
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# test that we can go back down again.
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self.child.send(self.arrow_up + "+")
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# Go back down to our second line and change '222' to '223'
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# so that the full expression is now '111+\n223'.
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# Then press enter twice to evaluate the expression.
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self.child.send(self.arrow_down + "\b3\n\n")
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# The result of our expression '111 + 223' should be '334'.
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# If the expression is '333' then arrow down failed to get
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# us back to the second line.
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self.child.expect_exact("(int) $0 = 334")
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self.quit()
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