65 lines
1.3 KiB
Go
65 lines
1.3 KiB
Go
package cqrs
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import (
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"context"
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"testing"
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)
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func TestBasicCommandMiddleware(t *testing.T) {
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dispatcher := NewDispatcher()
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handlerCalled := false
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handleTestCommand := func(ctx context.Context, cmd Command) error {
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handlerCalled = true
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return nil
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}
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middlewareCalled := false
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commandMiddleware := func(next CommandHandler) CommandHandler {
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fn := func(ctx context.Context, cmd Command) error {
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middlewareCalled = true
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return next.Handle(ctx, cmd)
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}
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return CommandHandlerFunc(fn)
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}
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dispatcher.RegisterCommand(
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MatchCommandRequest(&testCommandRequest{}),
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CommandHandlerFunc(handleTestCommand),
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commandMiddleware,
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)
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cmd := &testCommandRequest{
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Foo: "bar",
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}
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ctx := context.Background()
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result, err := dispatcher.Exec(ctx, cmd)
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if err != nil {
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t.Error(err)
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}
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if result == nil {
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t.Error("result should not be nil")
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}
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if result.Command() == nil {
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t.Error("result.Command() should not be nil")
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}
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if e, g := result.Command().Request(), cmd; e != g {
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t.Errorf("result.Command().Request(): expected '%v', got '%v'", e, g)
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}
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if e, g := middlewareCalled, true; e != g {
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t.Errorf("middlewareCalled: expected '%v', got '%v'", e, g)
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}
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if e, g := handlerCalled, true; e != g {
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t.Errorf("handlerCalled: expected '%v', got '%v'", e, g)
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}
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}
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