Fix method 'event.Check'

The text is no longer mandatory for event. While the rest of the code
already allowed for this the 'Check' method was returning an error.

.circleci/config.yml

@@ -57,7 +57,7 @@ commands:
         type: string
     steps:
       - checkout
-      # TODO: remove this once we have go.mod
+      - run: git config --global http.sslVerify false
       - run: go get github.com/stretchr/testify
       - run: go vet ./statsd/...
       - run: go fmt ./statsd/...

statsd/event.go

@@ -71,9 +71,6 @@ func (e Event) Check() error {
 	if len(e.Title) == 0 {
 		return fmt.Errorf("statsd.Event title is required")
 	}
-	if len(e.Text) == 0 {
-		return fmt.Errorf("statsd.Event text is required")
-	}
 	return nil
 }
 

statsd/event_test.go

@@ -47,13 +47,6 @@ func TestNewEventTitleMissing(t *testing.T) {
 	assert.Equal(t, "statsd.Event title is required", err.Error())
 }
 
-func TestNewEventTextMissing(t *testing.T) {
-	e := NewEvent("hi", "")
-	_, err := e.Encode()
-	require.Error(t, err)
-	assert.Equal(t, "statsd.Event text is required", err.Error())
-}
-
 func TestNewEvent(t *testing.T) {
 	e := NewEvent("hello", "world")
 	eventEncoded, err := e.Encode("tag1", "tag2")
@@ -70,3 +63,12 @@ func TestNewEventTags(t *testing.T) {
 	assert.Equal(t, "_e{5,5}:hello|world|#tag3,tag4,tag1,tag2", eventEncoded)
 	assert.Len(t, e.Tags, 2)
 }
+
+func TestNewEventEmptyText(t *testing.T) {
+	e := NewEvent("hello", "")
+	e.Tags = append(e.Tags, "tag1", "tag2")
+	eventEncoded, err := e.Encode()
+	require.NoError(t, err)
+	assert.Equal(t, "_e{5,0}:hello||#tag1,tag2", eventEncoded)
+	assert.Len(t, e.Tags, 2)
+}