Sha256: 2a32bbd33b006d66a642f343678189cc6d6b1f84c7441264d6b3331134ad6e43
Contents?: true
Size: 1.31 KB
Versions: 21
Compression:
Stored size: 1.31 KB
Contents
package main
import (
"log"
"text/template"
"../../../gen"
)
func main() {
t, err := template.New("").Parse(tmpl)
if err != nil {
log.Fatal(err)
}
var j js
if err := gen.Gen("collatz-conjecture", &j, t); err != nil {
log.Fatal(err)
}
}
type OneCase struct {
Description string
Number int
Expected interface{}
}
// The JSON structure we expect to be able to unmarshal into
type js struct {
Cases []OneCase
}
func (c OneCase) Valid() bool {
valid, _ := determineExpected(c.Expected)
return valid
}
func (c OneCase) Answer() int {
_, answer := determineExpected(c.Expected)
return answer
}
// determineExpected examines an .Expected interface{} object and determines
// whether a test case is valid(bool) and has an answer or expects an error.
// returning valid and answer.
func determineExpected(expected interface{}) (bool, int) {
ans, ok := expected.(float64)
if ok {
return ok, int(ans)
}
return false, 0
}
// template applied to above data structure generates the Go test cases
var tmpl = `package collatzconjecture
{{.Header}}
var testCases = []struct {
description string
input int
expectError bool
expected int
}{
{{range .J.Cases}}{
description: "{{.Description}}",
input: {{.Number}},
{{if .Valid}} expected: {{.Answer}},
{{- else}} expectError: true,
{{- end}}
},
{{end}}}
`
Version data entries
21 entries across 21 versions & 1 rubygems