bubbletea/tea_test.go

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566 B
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package tea
import (
"bytes"
"testing"
)
type testModel struct{}
func (m testModel) Init() Cmd {
return nil
}
func (m testModel) Update(msg Msg) (Model, Cmd) {
switch msg.(type) {
case KeyMsg:
return m, Quit
}
return m, nil
}
func (m testModel) View() string {
return "success\n"
}
func TestTeaModel(t *testing.T) {
var buf bytes.Buffer
var in bytes.Buffer
in.Write([]byte("q"))
p := NewProgram(testModel{}, WithInput(&in), WithOutput(&buf))
if err := p.Start(); err != nil {
t.Fatal(err)
}
if buf.Len() == 0 {
t.Fatal("no output")
}
}