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#!/usr/bin/env python3
###############################################################################
# Top contributors (to current version):
# Andrew V. Jones
#
# This file is part of the cvc5 project.
#
# Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
# in the top-level source directory and their institutional affiliations.
# All rights reserved. See the file COPYING in the top-level source
# directory for licensing information.
# #############################################################################
#
# A simple test file to interact with cvc5 with line editing
##
import sys
import pexpect
def check_iteractive_shell():
"""
Interacts with cvc5's interactive shell and checks that things such a tab
completion and "pressing up" works.
"""
# Open cvc5
child = pexpect.spawnu("bin/cvc5", timeout=1)
# We expect to see the cvc5 prompt
child.expect("cvc5>")
# If we send a line with just 'BOOLE' ...
child.sendline("(set-log")
# ... then we get an error
child.expect("Parse Error: <shell>:1.7: expected SMT-LIBv2 command, got `set-log\'")
# Start sending 'BOOL' (without an E)
child.send("(declare-data")
# Send tab twice
child.sendcontrol("i")
child.sendcontrol("i")
# We expect to see the completion
child.expect("declare-datatype.*declare-datatypes")
# NOTE: the double tab has completed our '(declare-data' to '(declare-datatype'!
# Now send enter (which submits '(declare-datatype')
child.send(")")
child.sendcontrol("m")
# So we expect to see an error for 'BOOLE'
child.expect("Parse Error: <shell>:1.17: Unexpected token: '\)'.")
# Send enter
child.sendcontrol("m")
# We expect to see the cvc5 prompt
child.expect("cvc5>")
# Now send an up key
child.send("\033[A")
# Send enter
child.sendcontrol("m")
# We expect to see the previous error again
child.expect("Parse Error: <shell>:1.17: Unexpected token: '\)'.")
return 0
def main():
"""
Runs our interactive shell test
Caveats:
* If we don't have the "pexpect" model, the test doesn't get run, but
passes
* We expect pexpect to raise and exit with a non-zero exit code if any
of the steps fail
"""
# If any of the "steps" fail, the pexpect will raise a Python will exit
# with a non-zero error code
sys.exit(check_iteractive_shell())
if __name__ == "__main__":
main()
# EOF
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