Revert "delete everything" (includes everything non-go-crypto)

This reverts commit 96a3502

libs/events/event_cache_test.go

@@ -0,0 +1,35 @@
+package events
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestEventCache_Flush(t *testing.T) {
+	evsw := NewEventSwitch()
+	evsw.Start()
+	evsw.AddListenerForEvent("nothingness", "", func(data EventData) {
+		// Check we are not initialising an empty buffer full of zeroed eventInfos in the EventCache
+		require.FailNow(t, "We should never receive a message on this switch since none are fired")
+	})
+	evc := NewEventCache(evsw)
+	evc.Flush()
+	// Check after reset
+	evc.Flush()
+	fail := true
+	pass := false
+	evsw.AddListenerForEvent("somethingness", "something", func(data EventData) {
+		if fail {
+			require.FailNow(t, "Shouldn't see a message until flushed")
+		}
+		pass = true
+	})
+	evc.FireEvent("something", struct{ int }{1})
+	evc.FireEvent("something", struct{ int }{2})
+	evc.FireEvent("something", struct{ int }{3})
+	fail = false
+	evc.Flush()
+	assert.True(t, pass)
+}