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format_test.go
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format_test.go
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// Licensed under the MIT license, see LICENSE file for details.
package quicktest_test
import (
"bytes"
"testing"
qt "github.com/frankban/quicktest"
)
var formatTests = []struct {
about string
value interface{}
want string
}{{
about: "error value",
value: errBadWolf,
want: "bad wolf\n file:line",
}, {
about: "error value: not formatted",
value: &errTest{
msg: "exterminate!",
},
want: `e"exterminate!"`,
}, {
about: "error value: with quotes",
value: &errTest{
msg: `cannot open "/no/such/file"`,
},
want: "e`cannot open \"/no/such/file\"`",
}, {
about: "error value: multi-line",
value: &errTest{
msg: `err:
"these are the voyages"`,
},
want: `e"err:\n\"these are the voyages\""`,
}, {
about: "error value: with backquotes",
value: &errTest{
msg: "cannot `open` \"file\"",
},
want: `e"cannot ` + "`open`" + ` \"file\""`,
}, {
about: "error value: not guarding against nil",
value: (*errTest)(nil),
want: `e<nil>`,
}, {
about: "stringer",
value: bytes.NewBufferString("I am a stringer"),
want: `s"I am a stringer"`,
}, {
about: "stringer: with quotes",
value: bytes.NewBufferString(`I say "hello"`),
want: "s`I say \"hello\"`",
}, {
about: "stringer: not guarding against nil",
value: (*nilStringer)(nil),
want: "s<nil>",
}, {
about: "string",
value: "these are the voyages",
want: `"these are the voyages"`,
}, {
about: "string: with quotes",
value: `here is a quote: "`,
want: "`here is a quote: \"`",
}, {
about: "string: multi-line",
value: `foo
"bar"
`,
want: `"foo\n\"bar\"\n"`,
}, {
about: "string: with backquotes",
value: `"` + "`",
want: `"\"` + "`\"",
}, {
about: "slice",
value: []int{1, 2, 3},
want: "[]int{1, 2, 3}",
}, {
about: "bytes",
value: []byte("hello"),
want: `[]uint8("hello")`,
}, {
about: "custom bytes type",
value: myBytes("hello"),
want: `quicktest_test.myBytes("hello")`,
}, {
about: "bytes with backquote",
value: []byte(`a "b" c`),
want: "[]uint8(`a \"b\" c`)",
}, {
about: "bytes with invalid utf-8",
value: []byte("\xff"),
want: "[]uint8{0xff}",
}, {
about: "nil byte slice",
value: []byte(nil),
want: "[]uint8(nil)",
}, {
about: "time",
value: goTime,
want: `s"2012-03-28 00:00:00 +0000 UTC"`,
}, {
about: "struct with byte slice",
value: struct{ X []byte }{[]byte("x")},
want: "struct { X []uint8 }{\n X: {0x78},\n}",
}, {
about: "uint64",
value: uint64(17),
want: "uint64(17)",
}, {
about: "uint32",
value: uint32(17898),
want: "uint32(17898)",
}, {
about: "uintptr",
value: uintptr(13),
want: "uintptr(13)",
},
}
func TestFormat(t *testing.T) {
for _, test := range formatTests {
t.Run(test.about, func(t *testing.T) {
got := qt.Format(test.value)
if got != test.want {
t.Fatalf("format:\ngot %q\nwant %q", got, test.want)
}
})
}
}
type myBytes []byte
// nilStringer is a stringer not guarding against nil.
type nilStringer struct {
msg string
}
func (s *nilStringer) String() string {
return s.msg
}