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|
package seq
import (
"testing"
"github.com/google/go-cmp/cmp"
)
type simple struct {
b bool
i int
u uint
f float64
s string
a []byte
p *bool
l []int
m map[string]int
}
func TestCompareSimple(t *testing.T) {
var vtrue, vfalse bool
vtrue = true
var tests = []struct {
msg string
s1, s2 simple
want int
}{
{msg: "zero", want: 0},
{msg: "s1 bool", s1: simple{b: true}, want: 1},
{msg: "s2 bool", s2: simple{b: true}, want: -1},
{msg: "s1 int", s1: simple{i: 1}, want: 1},
{msg: "s2 int", s2: simple{i: 1}, want: -1},
{msg: "s1 uint", s1: simple{u: 1}, want: 1},
{msg: "s2 uint", s2: simple{u: 1}, want: -1},
{msg: "s1 float", s1: simple{f: 1}, want: 1},
{msg: "s2 float", s2: simple{f: 1}, want: -1},
{msg: "s1 string", s1: simple{s: "a"}, want: 1},
{msg: "s2 string", s2: simple{s: "a"}, want: -1},
{msg: "s1 []byte", s1: simple{a: []byte{'a'}}, want: 1},
{msg: "s2 []byte", s2: simple{a: []byte{'a'}}, want: -1},
{msg: "s1 ptr vs nil", s1: simple{p: &vfalse}, want: 1},
{msg: "s1 ptr", s1: simple{p: &vtrue}, s2: simple{p: &vfalse}, want: 1},
{msg: "s2 ptr", s1: simple{p: &vfalse}, s2: simple{p: &vtrue}, want: -1},
{msg: "s1 slice", s1: simple{l: []int{1}}, want: 1},
{msg: "s2 slice", s2: simple{l: []int{1}}, want: -1},
{msg: "s1 slice", s1: simple{l: []int{0}}, s2: simple{l: []int{1}}, want: -1},
{msg: "s1 map", s1: simple{m: map[string]int{"a": 1}}, want: 1},
{msg: "s2 map", s2: simple{m: map[string]int{"a": 1}}, want: -1},
{msg: "s1 map", s1: simple{m: map[string]int{"a": 1}}, s2: simple{m: map[string]int{"a": 2}}, want: -1},
{msg: "s1 map", s1: simple{m: map[string]int{"a": 1}}, s2: simple{m: map[string]int{"b": 1}}, want: -1},
}
opts := cmp.AllowUnexported(simple{})
for i, test := range tests {
got := Compare(test.s1, test.s2)
if got != test.want {
diff := cmp.Diff(test.s1, test.s2, opts)
t.Errorf("%d %s: got=%d, want=%d, diff:\n%s", i, test.msg, got, test.want, diff)
}
}
}
type nested struct {
s simple
a []simple
p []*simple
}
func TestCompareNested(t *testing.T) {
var tests = []struct {
msg string
s1, s2 nested
want int
}{
{msg: "zero", want: 0},
{msg: "s1 struct", s1: nested{s: simple{i: 1}}, want: 1},
{msg: "s2 struct", s2: nested{s: simple{i: 1}}, want: -1},
{msg: "s1 slice struct", s1: nested{a: []simple{simple{i: 1}}}, want: 1},
{msg: "s2 slice struct", s2: nested{a: []simple{simple{i: 1}}}, want: -1},
{msg: "s1 slice struct", s1: nested{a: []simple{simple{i: 1}}}, s2: nested{a: []simple{simple{i: 0}}}, want: 1},
{msg: "s2 slice struct", s1: nested{a: []simple{simple{i: 0}}}, s2: nested{a: []simple{simple{i: 1}}}, want: -1},
{msg: "s2 slice struct", s1: nested{p: []*simple{&simple{i: 0}}}, s2: nested{p: []*simple{&simple{i: 1}}}, want: -1},
}
opts := cmp.AllowUnexported(simple{}, nested{})
for i, test := range tests {
got := Compare(test.s1, test.s2)
if got != test.want {
diff := cmp.Diff(test.s1, test.s2, opts)
t.Errorf("%d %s: got=%d, want=%d, diff:\n%s", i, test.msg, got, test.want, diff)
}
}
}
func TestCompareSlice(t *testing.T) {
var tests = []struct {
msg string
s1, s2 []int
want int
}{
{msg: "zero", want: 0},
{msg: "equal", s1: []int{1}, s2: []int{1}, want: 0},
{msg: "s1 smaller", s1: []int{-1}, s2: []int{1}, want: -1},
{msg: "s1 larger", s1: []int{-1}, s2: []int{-2}, want: 1},
{msg: "s1 shorter", s1: []int{1}, s2: []int{1, 1}, want: -1},
{msg: "s1 longer", s1: []int{1, 1}, s2: []int{1}, want: 1},
}
opts := cmp.AllowUnexported(simple{}, nested{})
for i, test := range tests {
got := Compare(test.s1, test.s2)
if got != test.want {
diff := cmp.Diff(test.s1, test.s2, opts)
t.Errorf("%d %s: got=%d, want=%d, diff:\n%s", i, test.msg, got, test.want, diff)
}
}
}
|
