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|
package tea
import (
"fmt"
"testing"
"time"
)
func TestEvery(t *testing.T) {
expected := "every ms"
msg := Every(time.Millisecond, func(t time.Time) Msg {
return expected
})()
if expected != msg {
t.Fatalf("expected a msg %v but got %v", expected, msg)
}
}
func TestTick(t *testing.T) {
expected := "tick"
msg := Tick(time.Millisecond, func(t time.Time) Msg {
return expected
})()
if expected != msg {
t.Fatalf("expected a msg %v but got %v", expected, msg)
}
}
func TestSequentially(t *testing.T) {
expectedErrMsg := fmt.Errorf("some err")
expectedStrMsg := "some msg"
nilReturnCmd := func() Msg {
return nil
}
tests := []struct {
name string
cmds []Cmd
expected Msg
}{
{
name: "all nil",
cmds: []Cmd{nilReturnCmd, nilReturnCmd},
expected: nil,
},
{
name: "null cmds",
cmds: []Cmd{nil, nil},
expected: nil,
},
{
name: "one error",
cmds: []Cmd{
nilReturnCmd,
func() Msg {
return expectedErrMsg
},
nilReturnCmd,
},
expected: expectedErrMsg,
},
{
name: "some msg",
cmds: []Cmd{
nilReturnCmd,
func() Msg {
return expectedStrMsg
},
nilReturnCmd,
},
expected: expectedStrMsg,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if msg := Sequentially(test.cmds...)(); msg != test.expected {
t.Fatalf("expected a msg %v but got %v", test.expected, msg)
}
})
}
}
func TestBatch(t *testing.T) {
t.Run("nil cmd", func(t *testing.T) {
if b := Batch(nil); b != nil {
t.Fatalf("expected nil, got %+v", b)
}
})
t.Run("empty cmd", func(t *testing.T) {
if b := Batch(); b != nil {
t.Fatalf("expected nil, got %+v", b)
}
})
t.Run("single cmd", func(t *testing.T) {
b := Batch(Quit)()
if _, ok := b.(QuitMsg); !ok {
t.Fatalf("expected a QuitMsg, got %T", b)
}
})
t.Run("mixed nil cmds", func(t *testing.T) {
b := Batch(nil, Quit, nil, Quit, nil, nil)()
if l := len(b.(BatchMsg)); l != 2 {
t.Fatalf("expected a []Cmd with len 2, got %d", l)
}
})
}
|
