bubbletea/exec_test.go

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package tea
import (
"bytes"
"os/exec"
"testing"
)
type execFinishedMsg struct{ err error }
type testExecModel struct{ err error }
func (m testExecModel) Init() Cmd {
c := exec.Command("true") //nolint:gosec
return ExecProcess(c, func(err error) Msg {
return execFinishedMsg{err}
})
}
func (m *testExecModel) Update(msg Msg) (Model, Cmd) {
switch msg := msg.(type) {
case execFinishedMsg:
if msg.err != nil {
m.err = msg.err
}
return m, Quit
}
return m, nil
}
func (m *testExecModel) View() string {
return "\n"
}
func TestTeaExec(t *testing.T) {
var buf bytes.Buffer
var in bytes.Buffer
m := &testExecModel{}
p := NewProgram(m, WithInput(&in), WithOutput(&buf))
if err := p.Start(); err != nil {
t.Fatal(err)
}
if m.err != nil {
t.Fatal(m.err)
}
}