90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
package stack
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import (
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"fmt"
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"strings"
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"testing"
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"time"
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shlex "github.com/flynn-archive/go-shlex"
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"github.com/gotestyourself/gotestyourself/golden"
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"github.com/gotestyourself/gotestyourself/icmd"
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"github.com/stretchr/testify/require"
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)
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func TestRemove(t *testing.T) {
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stackname := "test-stack-remove"
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deployFullStack(t, stackname)
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defer cleanupFullStack(t, stackname)
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result := icmd.RunCmd(shell(t, "docker stack rm %s", stackname))
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result.Assert(t, icmd.Expected{Out: icmd.None})
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golden.Assert(t, result.Stderr(), "stack-remove-success.golden")
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}
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func deployFullStack(t *testing.T, stackname string) {
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// TODO: this stack should have full options not minimal options
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result := icmd.RunCmd(shell(t,
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"docker stack deploy --compose-file=./testdata/full-stack.yml %s", stackname))
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result.Assert(t, icmd.Success)
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waitOn(t, taskCount(stackname, 2), 0)
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}
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func cleanupFullStack(t *testing.T, stackname string) {
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result := icmd.RunCmd(shell(t, "docker stack rm %s", stackname))
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result.Assert(t, icmd.Success)
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waitOn(t, taskCount(stackname, 0), 0)
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}
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func taskCount(stackname string, expected int) func() (bool, error) {
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return func() (bool, error) {
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result := icmd.RunCommand(
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"docker", "stack", "ps", "-f=desired-state=running", stackname)
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count := lines(result.Stdout()) - 1
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return count == expected, nil
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}
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}
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func lines(out string) int {
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return len(strings.Split(strings.TrimSpace(out), "\n"))
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}
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// TODO: move to gotestyourself
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func shell(t *testing.T, format string, args ...interface{}) icmd.Cmd {
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cmd, err := shlex.Split(fmt.Sprintf(format, args...))
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require.NoError(t, err)
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return icmd.Cmd{Command: cmd}
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}
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// TODO: move to gotestyourself
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func waitOn(t *testing.T, check func() (bool, error), timeout time.Duration) {
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if timeout == time.Duration(0) {
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timeout = defaultTimeout()
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}
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after := time.After(timeout)
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for {
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select {
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case <-after:
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// TODO: include check function name in error message
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t.Fatalf("timeout hit after %s", timeout)
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default:
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// TODO: maybe return a failure message as well?
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done, err := check()
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if done {
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return
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}
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if err != nil {
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t.Fatal(err.Error())
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}
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}
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}
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}
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func defaultTimeout() time.Duration {
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// TODO: support override from environment variable
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return 10 * time.Second
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}
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