godog/arguments.go

125 строки
2,8 КиБ
Go

package godog
import (
"fmt"
"strconv"
"github.com/DATA-DOG/godog/gherkin"
)
// Arg is an argument for StepHandler parsed from
// the regexp submatch to handle the step
type Arg struct {
value interface{}
}
// Float64 converts an argument to float64
// or panics if unable to convert it
func (a *Arg) Float64() float64 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseFloat(s, 64)
if err == nil {
return v
}
panic(fmt.Sprintf(`cannot convert "%s" to float64: %s`, s, err))
}
// Float32 converts an argument to float32
// or panics if unable to convert it
func (a *Arg) Float32() float32 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseFloat(s, 32)
if err == nil {
return float32(v)
}
panic(fmt.Sprintf(`cannot convert "%s" to float32: %s`, s, err))
}
// Int converts an argument to int
// or panics if unable to convert it
func (a *Arg) Int() int {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseInt(s, 10, 0)
if err == nil {
return int(v)
}
panic(fmt.Sprintf(`cannot convert "%s" to int: %s`, s, err))
}
// Int64 converts an argument to int64
// or panics if unable to convert it
func (a *Arg) Int64() int64 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseInt(s, 10, 64)
if err == nil {
return v
}
panic(fmt.Sprintf(`cannot convert "%s" to int64: %s`, s, err))
}
// Int32 converts an argument to int32
// or panics if unable to convert it
func (a *Arg) Int32() int32 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseInt(s, 10, 32)
if err == nil {
return int32(v)
}
panic(fmt.Sprintf(`cannot convert "%s" to int32: %s`, s, err))
}
// Int16 converts an argument to int16
// or panics if unable to convert it
func (a *Arg) Int16() int16 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseInt(s, 10, 16)
if err == nil {
return int16(v)
}
panic(fmt.Sprintf(`cannot convert "%s" to int16: %s`, s, err))
}
// Int8 converts an argument to int8
// or panics if unable to convert it
func (a *Arg) Int8() int8 {
s, ok := a.value.(string)
a.must(ok, "string")
v, err := strconv.ParseInt(s, 10, 8)
if err == nil {
return int8(v)
}
panic(fmt.Sprintf(`cannot convert "%s" to int8: %s`, s, err))
}
// String converts an argument to string
func (a *Arg) String() string {
s, ok := a.value.(string)
a.must(ok, "string")
return s
}
// Bytes converts an argument string to bytes
func (a *Arg) Bytes() []byte {
s, ok := a.value.(string)
a.must(ok, "string")
return []byte(s)
}
// PyString converts an argument gherkin PyString node
func (a *Arg) PyString() *gherkin.PyString {
s, ok := a.value.(*gherkin.PyString)
a.must(ok, "*gherkin.PyString")
return s
}
func (a *Arg) must(ok bool, expected string) {
if !ok {
panic(fmt.Sprintf(`cannot convert "%v" of type "%T" to type "%s"`, a.value, a.value, expected))
}
}