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moby--moby/integration-cli/docker_cli_help_test.go
Doug Davis 969ba5c7ed Make checking of help text smarter
As I was reworking https://github.com/docker/docker/pull/9402 I realized
that the new testcase I just added that verified all help text is within
80 characters really should be smarter and ask "docker help" for the list
of commands to check instead of having a hard-coded list.  This way
it will catch "docker execwait" automagically once #9402 is merged.

Signed-off-by: Doug Davis <dug@us.ibm.com>
2015-02-06 13:02:58 -08:00

97 lines
2.5 KiB
Go

package main
import (
"os"
"os/exec"
"runtime"
"strings"
"testing"
"unicode"
)
func TestMainHelpWidth(t *testing.T) {
// Make sure main help text fits within 80 chars and that
// on non-windows system we use ~ when possible (to shorten things)
var home string
if runtime.GOOS != "windows" {
home = os.Getenv("HOME")
}
helpCmd := exec.Command(dockerBinary, "help")
out, ec, err := runCommandWithOutput(helpCmd)
if err != nil || ec != 0 {
t.Fatalf("docker help should have worked\nout:%s\nec:%d", out, ec)
}
lines := strings.Split(out, "\n")
for _, line := range lines {
if len(line) > 80 {
t.Fatalf("Line is too long(%d chars):\n%s", len(line), line)
}
if home != "" && strings.Contains(line, home) {
t.Fatalf("Line should use ~ instead of %q:\n%s", home, line)
}
}
logDone("help - verify main width")
}
func TestCmdHelpWidth(t *testing.T) {
// Make sure main help text fits within 80 chars and that
// on non-windows system we use ~ when possible (to shorten things)
var home string
if runtime.GOOS != "windows" {
home = os.Getenv("HOME")
}
// Pull the list of commands from the "Commands:" section of docker help
helpCmd := exec.Command(dockerBinary, "help")
out, ec, err := runCommandWithOutput(helpCmd)
if err != nil || ec != 0 {
t.Fatalf("docker help should have worked\nout:%s\nec:%d", out, ec)
}
i := strings.Index(out, "Commands:")
if i < 0 {
t.Fatalf("Missing 'Commands:' in:\n%s", out)
}
// Grab all chars starting at "Commands:"
// Skip first line, its "Commands:"
count := 0
cmds := ""
for _, command := range strings.Split(out[i:], "\n")[1:] {
// Stop on blank line or non-idented line
if command == "" || !unicode.IsSpace(rune(command[0])) {
break
}
// Grab just the first word of each line
command = strings.Split(strings.TrimSpace(command), " ")[0]
count++
cmds = cmds + "\n" + command
helpCmd := exec.Command(dockerBinary, command, "--help")
out, ec, err := runCommandWithOutput(helpCmd)
if err != nil || ec != 0 {
t.Fatalf("docker help should have worked\nout:%s\nec:%d", out, ec)
}
lines := strings.Split(out, "\n")
for _, line := range lines {
if len(line) > 80 {
t.Fatalf("Help for %q is too long(%d chars):\n%s", command, len(line), line)
}
if home != "" && strings.Contains(line, home) {
t.Fatalf("Help for %q should use ~ instead of %q on:\n%s", command, home, line)
}
}
}
expected := 39
if count != expected {
t.Fatalf("Wrong # of commands (%d), it should be: %d\nThe list:\n%s",
len(cmds), expected, cmds)
}
logDone("help - cmd widths")
}