more TODOs, and especially clarify the situation for input type names

generate/util_test.go

@@ -52,6 +52,28 @@ func TestUpperFirst(t *testing.T) {
 	testStringFunc(t, upperFirst, tests)
 }
 
+func TestMatchFirst(t *testing.T) {
+	tests := []struct {
+		name, in, out, match string
+	}{
+		{"Empty", "", "", ""},
+		{"LowerToUpper", "lower", "Lower", "Upper"},
+		{"UpperToUpper", "Upper", "Upper", "Upper"},
+		{"LowerToLower", "lower", "lower", "lower"},
+		{"UpperToLower", "Upper", "upper", "lower"},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.name, func(t *testing.T) {
+			got := matchFirst(test.in, test.match)
+			if got != test.out {
+				t.Errorf("got %#v want %#v", got, test.out)
+			}
+		})
+	}
+}
+
 func TestGoConstName(t *testing.T) {
 	tests := []test{
 		{"Empty", "", ""},