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77a2bbb1c0
Unless specified otherwise by --all, --latest or via arguments, list all running containers. This matches the behaviour of Docker and is also illustrated in the man pages where containers and options are marked to be optional. Fixes: #4274 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
100 lines
3.2 KiB
Bash
100 lines
3.2 KiB
Bash
#!/usr/bin/env bats
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#
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# Tests based on 'podman help'
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#
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# Find all commands listed by 'podman --help'. Run each one, make sure it
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# provides its own --help output. If the usage message ends in '[command]',
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# treat it as a subcommand, and recurse into its own list of sub-subcommands.
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#
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# Any usage message that ends in '[flags]' is interpreted as a command
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# that takes no further arguments; we confirm by running with 'invalid-arg'
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# and confirming that it exits with error status and message.
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#
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load helpers
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# run 'podman help', parse the output looking for 'Available Commands';
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# return that list.
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function podman_commands() {
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dprint "$@"
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run_podman help "$@" |\
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awk '/^Available Commands:/{ok=1;next}/^Flags:/{ok=0}ok { print $1 }' |\
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grep .
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"$output"
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}
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function check_help() {
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local count=0
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local subcommands_found=0
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for cmd in $(podman_commands "$@"); do
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dprint "podman $@ $cmd --help"
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run_podman "$@" $cmd --help
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# The line immediately after 'Usage:' gives us a 1-line synopsis
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usage=$(echo "$output" | grep -A1 '^Usage:' | tail -1)
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[ -n "$usage" ] || die "podman $cmd: no Usage message found"
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# If usage ends in '[command]', recurse into subcommands
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if expr "$usage" : '.*\[command\]$' >/dev/null; then
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subcommands_found=$(expr $subcommands_found + 1)
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check_help "$@" $cmd
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continue
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fi
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# If usage ends in '[flag]', command takes no more arguments.
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# Confirm that by running with 'invalid-arg' and expecting failure.
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if expr "$usage" : '.*\[flags\]$' >/dev/null; then
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if [ "$cmd" != "help" ]; then
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dprint "podman $@ $cmd invalid-arg"
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run_podman 125 "$@" $cmd invalid-arg
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is "$output" "Error: .* takes no arguments" \
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"'podman $@ $cmd' with extra (invalid) arguments"
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fi
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fi
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# If usage has required arguments, try running without them
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if expr "$usage" : '.*\[flags\] [A-Z]' >/dev/null; then
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if [ "$cmd" != "stats"]; then
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dprint "podman $@ $cmd (without required args)"
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run_podman 125 "$@" $cmd
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is "$output" "Error:"
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fi
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fi
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count=$(expr $count + 1)
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done
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# Any command that takes subcommands, must throw error if called
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# without one.
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dprint "podman $@"
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run_podman 125 "$@"
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is "$output" "Error: missing command .*$@ COMMAND"
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# Assume that 'NoSuchCommand' is not a command
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dprint "podman $@ NoSuchCommand"
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run_podman 125 "$@" NoSuchCommand
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is "$output" "Error: unrecognized command .*$@ NoSuchCommand"
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# This can happen if the output of --help changes, such as between
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# the old command parser and cobra.
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[ $count -gt 0 ] || \
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die "Internal error: no commands found in 'podman help $@' list"
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# At least the top level must have some subcommands
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if [ -z "$*" -a $subcommands_found -eq 0 ]; then
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die "Internal error: did not find any podman subcommands"
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fi
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}
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@test "podman help - basic tests" {
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skip_if_remote
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# Called with no args -- start with 'podman --help'. check_help() will
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# recurse for any subcommands.
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check_help
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}
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# vim: filetype=sh
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