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go/cmd/stringer/testdata/prime.go
Rob Pike d0448f16e3 go.tools/cmd/stringer: add end-to-end test that compiles, runs, and verifies the generated method
In the process, fix a bug in one of the method generators.

LGTM=gri
R=gri
CC=golang-codereviews
https://golang.org/cl/141130043
2014-09-05 15:42:23 -07:00

57 lines
1.0 KiB
Go

// Copyright 2014 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.
// Enough gaps to trigger a map implementation of the method.
// Also includes a duplicate to test that it doesn't cause problems
package main
import "fmt"
type Prime int
const (
p2 Prime = 2
p3 Prime = 3
p5 Prime = 5
p7 Prime = 7
p77 Prime = 7 // Duplicate; note that p77 doesn't appear below.
p11 Prime = 11
p13 Prime = 13
p17 Prime = 17
p19 Prime = 19
p23 Prime = 23
p29 Prime = 29
p37 Prime = 31
p41 Prime = 41
p43 Prime = 43
)
func main() {
ck(0, "Prime(0)")
ck(1, "Prime(1)")
ck(p2, "p2")
ck(p3, "p3")
ck(4, "Prime(4)")
ck(p5, "p5")
ck(p7, "p7")
ck(p77, "p7")
ck(p11, "p11")
ck(p13, "p13")
ck(p17, "p17")
ck(p19, "p19")
ck(p23, "p23")
ck(p29, "p29")
ck(p37, "p37")
ck(p41, "p41")
ck(p43, "p43")
ck(44, "Prime(44)")
}
func ck(prime Prime, str string) {
if fmt.Sprint(prime) != str {
panic("prime.go: " + str)
}
}