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termlist_test.go
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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package types2
import (
"strings"
"testing"
)
// maketl makes a term list from a string of the term list.
func maketl(s string) termlist {
s = strings.ReplaceAll(s, " ", "")
names := strings.Split(s, "|")
r := make(termlist, len(names))
for i, n := range names {
r[i] = testTerm(n)
}
return r
}
func TestTermlistAll(t *testing.T) {
if !allTermlist.isAll() {
t.Errorf("allTermlist is not the set of all types")
}
}
func TestTermlistString(t *testing.T) {
for _, want := range []string{
"β
",
"π€",
"int",
"~int",
"myInt",
"β
| β
",
"π€ | π€",
"β
| π€ | int",
"β
| π€ | int | myInt",
} {
if got := maketl(want).String(); got != want {
t.Errorf("(%v).String() == %v", want, got)
}
}
}
func TestTermlistIsEmpty(t *testing.T) {
for test, want := range map[string]bool{
"β
": true,
"β
| β
": true,
"β
| β
| π€": false,
"β
| β
| myInt": false,
"π€": false,
"π€ | int": false,
"π€ | myInt | β
": false,
} {
xl := maketl(test)
got := xl.isEmpty()
if got != want {
t.Errorf("(%v).isEmpty() == %v; want %v", test, got, want)
}
}
}
func TestTermlistIsAll(t *testing.T) {
for test, want := range map[string]bool{
"β
": false,
"β
| β
": false,
"int | ~string": false,
"~int | myInt": false,
"β
| β
| π€": true,
"π€": true,
"π€ | int": true,
"myInt | π€": true,
} {
xl := maketl(test)
got := xl.isAll()
if got != want {
t.Errorf("(%v).isAll() == %v; want %v", test, got, want)
}
}
}
func TestTermlistNorm(t *testing.T) {
for _, test := range []struct {
xl, want string
}{
{"β
", "β
"},
{"β
| β
", "β
"},
{"β
| int", "int"},
{"β
| myInt", "myInt"},
{"π€ | int", "π€"},
{"π€ | myInt", "π€"},
{"int | myInt", "int | myInt"},
{"~int | int", "~int"},
{"~int | myInt", "~int"},
{"int | ~string | int", "int | ~string"},
{"~int | string | π€ | ~string | int", "π€"},
{"~int | string | myInt | ~string | int", "~int | ~string"},
} {
xl := maketl(test.xl)
got := maketl(test.xl).norm()
if got.String() != test.want {
t.Errorf("(%v).norm() = %v; want %v", xl, got, test.want)
}
}
}
func TestTermlistUnion(t *testing.T) {
for _, test := range []struct {
xl, yl, want string
}{
{"β
", "β
", "β
"},
{"β
", "π€", "π€"},
{"β
", "int", "int"},
{"π€", "~int", "π€"},
{"int", "~int", "~int"},
{"int", "string", "int | string"},
{"int", "myInt", "int | myInt"},
{"~int", "myInt", "~int"},
{"int | string", "~string", "int | ~string"},
{"~int | string", "~string | int", "~int | ~string"},
{"~int | string | β
", "~string | int", "~int | ~string"},
{"~int | myInt | β
", "~string | int", "~int | ~string"},
{"~int | string | π€", "~string | int", "π€"},
{"~int | string | myInt", "~string | int", "~int | ~string"},
} {
xl := maketl(test.xl)
yl := maketl(test.yl)
got := xl.union(yl).String()
if got != test.want {
t.Errorf("(%v).union(%v) = %v; want %v", test.xl, test.yl, got, test.want)
}
}
}
func TestTermlistIntersect(t *testing.T) {
for _, test := range []struct {
xl, yl, want string
}{
{"β
", "β
", "β
"},
{"β
", "π€", "β
"},
{"β
", "int", "β
"},
{"β
", "myInt", "β
"},
{"π€", "~int", "~int"},
{"π€", "myInt", "myInt"},
{"int", "~int", "int"},
{"int", "string", "β
"},
{"int", "myInt", "β
"},
{"~int", "myInt", "myInt"},
{"int | string", "~string", "string"},
{"~int | string", "~string | int", "int | string"},
{"~int | string | β
", "~string | int", "int | string"},
{"~int | myInt | β
", "~string | int", "int"},
{"~int | string | π€", "~string | int", "int | ~string"},
{"~int | string | myInt", "~string | int", "int | string"},
} {
xl := maketl(test.xl)
yl := maketl(test.yl)
got := xl.intersect(yl).String()
if got != test.want {
t.Errorf("(%v).intersect(%v) = %v; want %v", test.xl, test.yl, got, test.want)
}
}
}
func TestTermlistEqual(t *testing.T) {
for _, test := range []struct {
xl, yl string
want bool
}{
{"β
", "β
", true},
{"β
", "π€", false},
{"π€", "π€", true},
{"π€ | int", "π€", true},
{"π€ | int", "string | π€", true},
{"π€ | myInt", "string | π€", true},
{"int | ~string", "string | int", false},
{"~int | string", "string | myInt", false},
{"int | ~string | β
", "string | int | ~string", true},
} {
xl := maketl(test.xl)
yl := maketl(test.yl)
got := xl.equal(yl)
if got != test.want {
t.Errorf("(%v).equal(%v) = %v; want %v", test.xl, test.yl, got, test.want)
}
}
}
func TestTermlistIncludes(t *testing.T) {
for _, test := range []struct {
xl, typ string
want bool
}{
{"β
", "int", false},
{"π€", "int", true},
{"~int", "int", true},
{"int", "string", false},
{"~int", "string", false},
{"~int", "myInt", true},
{"int | string", "string", true},
{"~int | string", "int", true},
{"~int | string", "myInt", true},
{"~int | myInt | β
", "myInt", true},
{"myInt | β
| π€", "int", true},
} {
xl := maketl(test.xl)
yl := testTerm(test.typ).typ
got := xl.includes(yl)
if got != test.want {
t.Errorf("(%v).includes(%v) = %v; want %v", test.xl, yl, got, test.want)
}
}
}
func TestTermlistSupersetOf(t *testing.T) {
for _, test := range []struct {
xl, typ string
want bool
}{
{"β
", "β
", true},
{"β
", "π€", false},
{"β
", "int", false},
{"π€", "β
", true},
{"π€", "π€", true},
{"π€", "int", true},
{"π€", "~int", true},
{"π€", "myInt", true},
{"~int", "int", true},
{"~int", "~int", true},
{"~int", "myInt", true},
{"int", "~int", false},
{"myInt", "~int", false},
{"int", "string", false},
{"~int", "string", false},
{"int | string", "string", true},
{"int | string", "~string", false},
{"~int | string", "int", true},
{"~int | string", "myInt", true},
{"~int | string | β
", "string", true},
{"~string | β
| π€", "myInt", true},
} {
xl := maketl(test.xl)
y := testTerm(test.typ)
got := xl.supersetOf(y)
if got != test.want {
t.Errorf("(%v).supersetOf(%v) = %v; want %v", test.xl, y, got, test.want)
}
}
}
func TestTermlistSubsetOf(t *testing.T) {
for _, test := range []struct {
xl, yl string
want bool
}{
{"β
", "β
", true},
{"β
", "π€", true},
{"π€", "β
", false},
{"π€", "π€", true},
{"int", "int | string", true},
{"~int", "int | string", false},
{"~int", "myInt | string", false},
{"myInt", "~int | string", true},
{"~int", "string | string | int | ~int", true},
{"myInt", "string | string | ~int", true},
{"int | string", "string", false},
{"int | string", "string | int", true},
{"int | ~string", "string | int", false},
{"myInt | ~string", "string | int | π€", true},
{"int | ~string", "string | int | β
| string", false},
{"int | myInt", "string | ~int | β
| string", true},
} {
xl := maketl(test.xl)
yl := maketl(test.yl)
got := xl.subsetOf(yl)
if got != test.want {
t.Errorf("(%v).subsetOf(%v) = %v; want %v", test.xl, test.yl, got, test.want)
}
}
}