MM-10189 Fixed inconsistency when using environment variables for MessageExportSettings (#8705)

utils/config_test.go

@@ -396,3 +396,25 @@ func sToP(s string) *string {
 func bToP(b bool) *bool {
 	return &b
 }
+
+func TestGetDefaultsFromStruct(t *testing.T) {
+	s := struct {
+		TestSettings struct {
+			IntValue    int
+			BoolValue   bool
+			StringValue string
+		}
+		PointerToTestSettings *struct {
+			Value int
+		}
+	}{}
+
+	defaults := getDefaultsFromStruct(s)
+
+	assert.Equal(t, defaults["TestSettings.IntValue"], 0)
+	assert.Equal(t, defaults["TestSettings.BoolValue"], false)
+	assert.Equal(t, defaults["TestSettings.StringValue"], "")
+	assert.Equal(t, defaults["PointerToTestSettings.Value"], 0)
+	assert.NotContains(t, defaults, "PointerToTestSettings")
+	assert.Len(t, defaults, 4)
+}