fish-shell/tests/checks/eval.fish

# RUN: %fish %s
# Regression test for issue #4443
eval set -l previously_undefined foo
echo $previously_undefined
# CHECK: foo

# Test redirection
eval "echo you can\\'t see this 1>&2" 2>/dev/null

# Test return statuses
false; eval true; echo $status
# CHECK: 0
false; eval false; echo $status
# CHECK: 1

# Test return status in case of parsing error
false; eval "("; echo $status
# CHECK: 1
# CHECKERR: {{.*}}checks/eval.fish (line {{\d+}}): Unexpected end of string, expecting ')'
# CHECKERR: (
# CHECKERR: ^
false; eval '""'; echo $status
# CHECK: 1
# CHECKERR: {{.*}}checks/eval.fish (line {{\d+}}): The expanded command was empty.
# CHECKERR: ""
# CHECKERR: ^

function empty
end

# Regression tests for issue #5692
false; eval;
echo blank eval: $status # 0
# CHECK: blank eval: 0

false; eval "";
echo empty arg eval: $status # 0
# CHECK: empty arg eval: 0

false; eval empty;
echo empty function eval $status # 0
# CHECK: empty function eval 0

false; eval "begin; end;";
echo empty block eval: $status # 0
# CHECK: empty block eval: 0