error-pages/internal/cli/healthcheck/command_test.go
2022-01-28 12:53:35 +05:00

95 lines
2.1 KiB
Go

package healthcheck_test
import (
"errors"
"os"
"testing"
"github.com/kami-zh/go-capturer"
"github.com/spf13/cobra"
"github.com/stretchr/testify/assert"
"github.com/tarampampam/error-pages/internal/cli/healthcheck"
)
type fakeChecker struct{ err error }
func (c *fakeChecker) Check(port uint16) error { return c.err }
func TestProperties(t *testing.T) {
cmd := healthcheck.NewCommand(&fakeChecker{err: nil})
assert.Equal(t, "healthcheck", cmd.Use)
assert.ElementsMatch(t, []string{"chk", "health", "check"}, cmd.Aliases)
assert.NotNil(t, cmd.RunE)
}
func TestCommandRun(t *testing.T) {
cmd := healthcheck.NewCommand(&fakeChecker{err: nil})
cmd.SetArgs([]string{})
output := capturer.CaptureOutput(func() {
assert.NoError(t, cmd.Execute())
})
assert.Empty(t, output)
}
func TestCommandRunFailed(t *testing.T) {
cmd := healthcheck.NewCommand(&fakeChecker{err: errors.New("foo err")})
cmd.SetArgs([]string{})
output := capturer.CaptureStderr(func() {
assert.Error(t, cmd.Execute())
})
assert.Contains(t, output, "foo err")
}
func TestPortFlagWrongArgument(t *testing.T) {
cmd := healthcheck.NewCommand(&fakeChecker{err: nil})
cmd.SetArgs([]string{"-p", "65536"}) // 65535 is max
var executed bool
cmd.RunE = func(*cobra.Command, []string) error {
executed = true
return nil
}
output := capturer.CaptureStderr(func() {
assert.Error(t, cmd.Execute())
})
assert.Contains(t, output, "invalid argument")
assert.Contains(t, output, "65536")
assert.Contains(t, output, "value out of range")
assert.False(t, executed)
}
func TestPortFlagWrongEnvValue(t *testing.T) {
cmd := healthcheck.NewCommand(&fakeChecker{err: nil})
cmd.SetArgs([]string{})
assert.NoError(t, os.Setenv("LISTEN_PORT", "65536")) // 65535 is max
defer func() { assert.NoError(t, os.Unsetenv("LISTEN_PORT")) }()
var executed bool
cmd.RunE = func(*cobra.Command, []string) error {
executed = true
return nil
}
output := capturer.CaptureStderr(func() {
assert.Error(t, cmd.Execute())
})
assert.Contains(t, output, "wrong TCP port")
assert.Contains(t, output, "environment variable")
assert.Contains(t, output, "65536")
assert.False(t, executed)
}