Added a test for Terms.WriteTo

hatmill_test.go

@@ -178,6 +178,21 @@ func TestParentElement(t *testing.T) {
 	properties.TestingRun(t)
 }
 
+func TestTerms(t *testing.T) {
+	properties := gopter.NewProperties(nil)
+
+	properties.Property("WriteTo writes the concatenation of calling WriteTo on the slice contents", prop.ForAll(
+		func(terms []hatmill.Term) bool {
+			var expected string
+			for _, term := range terms {
+				expected += string(term.(hatmill.Text))
+			}
+			return checkWrite(hatmill.Terms(terms), expected)
+		},
+		gen.SliceOf(htmlTextGen),
+	))
+}
+
 func Example() {
 	userInput := "<script>launchMissiles();</script>"