mirror of https://github.com/docker/cli.git
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package cliplugins
|
|
|
|
import (
|
|
"bufio"
|
|
"regexp"
|
|
"strings"
|
|
"testing"
|
|
|
|
"gotest.tools/assert"
|
|
is "gotest.tools/assert/cmp"
|
|
"gotest.tools/icmd"
|
|
)
|
|
|
|
// TestGlobalHelp ensures correct behaviour when running `docker help`
|
|
func TestGlobalHelp(t *testing.T) {
|
|
run, cleanup := prepare(t)
|
|
defer cleanup()
|
|
|
|
res := icmd.RunCmd(run("help"))
|
|
res.Assert(t, icmd.Expected{
|
|
ExitCode: 0,
|
|
})
|
|
assert.Assert(t, is.Equal(res.Stderr(), ""))
|
|
scanner := bufio.NewScanner(strings.NewReader(res.Stdout()))
|
|
|
|
// Instead of baking in the full current output of `docker
|
|
// help`, which can be expected to change regularly, bake in
|
|
// some checkpoints. Key things we are looking for:
|
|
//
|
|
// - The top-level description
|
|
// - Each of the main headings
|
|
// - Some builtin commands under the main headings
|
|
// - The `helloworld` plugin in the appropriate place
|
|
//
|
|
// Regexps are needed because the width depends on `unix.TIOCGWINSZ` or similar.
|
|
for _, expected := range []*regexp.Regexp{
|
|
regexp.MustCompile(`^A self-sufficient runtime for containers$`),
|
|
regexp.MustCompile(`^Management Commands:$`),
|
|
regexp.MustCompile(`^ container\s+Manage containers$`),
|
|
regexp.MustCompile(`^Commands:$`),
|
|
regexp.MustCompile(`^ create\s+Create a new container$`),
|
|
regexp.MustCompile(`^ helloworld\s+\(Docker Inc\.\)\s+A basic Hello World plugin for tests$`),
|
|
regexp.MustCompile(`^ ps\s+List containers$`),
|
|
} {
|
|
var found bool
|
|
for scanner.Scan() {
|
|
if expected.MatchString(scanner.Text()) {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
assert.Assert(t, found, "Did not find match for %q in `docker help` output", expected)
|
|
}
|
|
|
|
// Running just `docker` (without help) should produce the same thing, except on Stderr
|
|
res2 := icmd.RunCmd(run())
|
|
res2.Assert(t, icmd.Expected{
|
|
ExitCode: 0,
|
|
})
|
|
assert.Assert(t, is.Equal(res2.Stdout(), ""))
|
|
assert.Assert(t, is.Equal(res2.Stderr(), res.Stdout()))
|
|
}
|