50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
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package fsm
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import (
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"bytes"
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"context"
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"fmt"
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"testing"
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)
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func TestFSMStart(t *testing.T) {
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ctx := context.TODO()
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buf := bytes.NewBuffer(nil)
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pfb := func(_ context.Context, state string, _ map[string]interface{}) {
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fmt.Fprintf(buf, "before state %s\n", state)
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}
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pfa := func(_ context.Context, state string, _ map[string]interface{}) {
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fmt.Fprintf(buf, "after state %s\n", state)
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}
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f := New(StateInitial("1"), StateHookBefore(pfb), StateHookAfter(pfa))
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f1 := func(_ context.Context, args map[string]interface{}) (string, map[string]interface{}, error) {
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if v, ok := args["request"].(string); !ok || v == "" {
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return "", nil, fmt.Errorf("empty request")
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}
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return "2", map[string]interface{}{"response": "test2"}, nil
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}
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f2 := func(_ context.Context, args map[string]interface{}) (string, map[string]interface{}, error) {
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if v, ok := args["response"].(string); !ok || v == "" {
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return "", nil, fmt.Errorf("empty response")
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}
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return "", map[string]interface{}{"response": "test"}, nil
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}
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f.State("1", f1)
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f.State("2", f2)
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args, err := f.Start(ctx, map[string]interface{}{"request": "test1"})
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if err != nil {
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t.Fatal(err)
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} else if v, ok := args["response"].(string); !ok || v == "" {
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t.Fatalf("nil rsp: %#+v", args)
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} else if v != "test" {
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t.Fatalf("invalid rsp %#+v", args)
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}
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if !bytes.Contains(buf.Bytes(), []byte(`before state 1`)) ||
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!bytes.Contains(buf.Bytes(), []byte(`before state 2`)) ||
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!bytes.Contains(buf.Bytes(), []byte(`after state 1`)) ||
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!bytes.Contains(buf.Bytes(), []byte(`after state 2`)) {
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t.Fatalf("fsm not works properly or hooks error, buf: %s", buf.Bytes())
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}
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}
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