github.com/supragya/TendermintConnector@v0.0.0-20210619045051-113e32b84fb1/chains/tm34/libs/events/event_cache_test.go (about)

     1  package events
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/stretchr/testify/assert"
     7  	"github.com/stretchr/testify/require"
     8  )
     9  
    10  func TestEventCache_Flush(t *testing.T) {
    11  	evsw := NewEventSwitch()
    12  	err := evsw.Start()
    13  	require.NoError(t, err)
    14  
    15  	err = evsw.AddListenerForEvent("nothingness", "", func(data EventData) {
    16  		// Check we are not initialising an empty buffer full of zeroed eventInfos in the EventCache
    17  		require.FailNow(t, "We should never receive a message on this switch since none are fired")
    18  	})
    19  	require.NoError(t, err)
    20  
    21  	evc := NewEventCache(evsw)
    22  	evc.Flush()
    23  	// Check after reset
    24  	evc.Flush()
    25  	fail := true
    26  	pass := false
    27  	err = evsw.AddListenerForEvent("somethingness", "something", func(data EventData) {
    28  		if fail {
    29  			require.FailNow(t, "Shouldn't see a message until flushed")
    30  		}
    31  		pass = true
    32  	})
    33  	require.NoError(t, err)
    34  
    35  	evc.FireEvent("something", struct{ int }{1})
    36  	evc.FireEvent("something", struct{ int }{2})
    37  	evc.FireEvent("something", struct{ int }{3})
    38  	fail = false
    39  	evc.Flush()
    40  	assert.True(t, pass)
    41  }