forked from Mirrors/bubbletea
152 lines
2.4 KiB
Go
152 lines
2.4 KiB
Go
package tea
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import (
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"bytes"
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"sync/atomic"
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"testing"
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"time"
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)
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type incrementMsg struct{}
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type testModel struct {
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executed atomic.Value
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counter atomic.Value
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}
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func (m testModel) Init() Cmd {
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return nil
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}
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func (m *testModel) Update(msg Msg) (Model, Cmd) {
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switch msg.(type) {
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case incrementMsg:
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i := m.counter.Load()
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if i == nil {
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m.counter.Store(1)
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} else {
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m.counter.Store(i.(int) + 1)
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}
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case KeyMsg:
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return m, Quit
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}
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return m, nil
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}
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func (m *testModel) View() string {
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m.executed.Store(true)
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return "success\n"
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}
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func TestTeaModel(t *testing.T) {
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var buf bytes.Buffer
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var in bytes.Buffer
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in.Write([]byte("q"))
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p := NewProgram(&testModel{}, WithInput(&in), WithOutput(&buf))
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if _, err := p.Run(); err != nil {
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t.Fatal(err)
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}
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if buf.Len() == 0 {
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t.Fatal("no output")
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}
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}
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func TestTeaQuit(t *testing.T) {
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var buf bytes.Buffer
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var in bytes.Buffer
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m := &testModel{}
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p := NewProgram(m, WithInput(&in), WithOutput(&buf))
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go func() {
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for {
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time.Sleep(time.Millisecond)
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if m.executed.Load() != nil {
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p.Quit()
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return
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}
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}
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}()
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if _, err := p.Run(); err != nil {
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t.Fatal(err)
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}
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}
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func TestTeaKill(t *testing.T) {
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var buf bytes.Buffer
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var in bytes.Buffer
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m := &testModel{}
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p := NewProgram(m, WithInput(&in), WithOutput(&buf))
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go func() {
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for {
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time.Sleep(time.Millisecond)
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if m.executed.Load() != nil {
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p.Kill()
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return
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}
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}
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}()
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if _, err := p.Run(); err != ErrProgramKilled {
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t.Fatalf("Expected %v, got %v", ErrProgramKilled, err)
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}
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}
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func TestTeaBatchMsg(t *testing.T) {
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var buf bytes.Buffer
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var in bytes.Buffer
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inc := func() Msg {
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return incrementMsg{}
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}
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m := &testModel{}
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p := NewProgram(m, WithInput(&in), WithOutput(&buf))
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go func() {
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p.Send(batchMsg{inc, inc})
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for {
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time.Sleep(time.Millisecond)
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i := m.counter.Load()
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if i != nil && i.(int) >= 2 {
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p.Quit()
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return
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}
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}
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}()
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if _, err := p.Run(); err != nil {
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t.Fatal(err)
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}
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if m.counter.Load() != 2 {
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t.Fatalf("counter should be 2, got %d", m.counter.Load())
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}
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}
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func TestTeaSequenceMsg(t *testing.T) {
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var buf bytes.Buffer
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var in bytes.Buffer
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inc := func() Msg {
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return incrementMsg{}
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}
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m := &testModel{}
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p := NewProgram(m, WithInput(&in), WithOutput(&buf))
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go p.Send(sequenceMsg{inc, inc, Quit})
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if _, err := p.Run(); err != nil {
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t.Fatal(err)
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}
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if m.counter.Load() != 2 {
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t.Fatalf("counter should be 2, got %d", m.counter.Load())
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}
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}
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