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package assertions
import (
"fmt"
"reflect"
"strings"
)
// ShouldStartWith receives exactly 2 string parameters and ensures that the first starts with the second.
func ShouldStartWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
prefix, prefixIsString := expected[0].(string)
if !valueIsString || !prefixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldStartWith(value, prefix)
}
func shouldStartWith(value, prefix string) string {
if !strings.HasPrefix(value, prefix) {
shortval := value
if len(shortval) > len(prefix) {
shortval = shortval[:len(prefix)] + "..."
}
return serializer.serialize(prefix, shortval, fmt.Sprintf(shouldHaveStartedWith, value, prefix))
}
return success
}
// ShouldNotStartWith receives exactly 2 string parameters and ensures that the first does not start with the second.
func ShouldNotStartWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
prefix, prefixIsString := expected[0].(string)
if !valueIsString || !prefixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldNotStartWith(value, prefix)
}
func shouldNotStartWith(value, prefix string) string {
if strings.HasPrefix(value, prefix) {
if value == "" {
value = "<empty>"
}
if prefix == "" {
prefix = "<empty>"
}
return fmt.Sprintf(shouldNotHaveStartedWith, value, prefix)
}
return success
}
// ShouldEndWith receives exactly 2 string parameters and ensures that the first ends with the second.
func ShouldEndWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
suffix, suffixIsString := expected[0].(string)
if !valueIsString || !suffixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldEndWith(value, suffix)
}
func shouldEndWith(value, suffix string) string {
if !strings.HasSuffix(value, suffix) {
shortval := value
if len(shortval) > len(suffix) {
shortval = "..." + shortval[len(shortval)-len(suffix):]
}
return serializer.serialize(suffix, shortval, fmt.Sprintf(shouldHaveEndedWith, value, suffix))
}
return success
}
// ShouldEndWith receives exactly 2 string parameters and ensures that the first does not end with the second.
func ShouldNotEndWith(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
value, valueIsString := actual.(string)
suffix, suffixIsString := expected[0].(string)
if !valueIsString || !suffixIsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
return shouldNotEndWith(value, suffix)
}
func shouldNotEndWith(value, suffix string) string {
if strings.HasSuffix(value, suffix) {
if value == "" {
value = "<empty>"
}
if suffix == "" {
suffix = "<empty>"
}
return fmt.Sprintf(shouldNotHaveEndedWith, value, suffix)
}
return success
}
// ShouldContainSubstring receives exactly 2 string parameters and ensures that the first contains the second as a substring.
func ShouldContainSubstring(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
long, longOk := actual.(string)
short, shortOk := expected[0].(string)
if !longOk || !shortOk {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
if !strings.Contains(long, short) {
return serializer.serialize(expected[0], actual, fmt.Sprintf(shouldHaveContainedSubstring, long, short))
}
return success
}
// ShouldNotContainSubstring receives exactly 2 string parameters and ensures that the first does NOT contain the second as a substring.
func ShouldNotContainSubstring(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
long, longOk := actual.(string)
short, shortOk := expected[0].(string)
if !longOk || !shortOk {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
if strings.Contains(long, short) {
return fmt.Sprintf(shouldNotHaveContainedSubstring, long, short)
}
return success
}
// ShouldBeBlank receives exactly 1 string parameter and ensures that it is equal to "".
func ShouldBeBlank(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
value, ok := actual.(string)
if !ok {
return fmt.Sprintf(shouldBeString, reflect.TypeOf(actual))
}
if value != "" {
return serializer.serialize("", value, fmt.Sprintf(shouldHaveBeenBlank, value))
}
return success
}
// ShouldNotBeBlank receives exactly 1 string parameter and ensures that it is equal to "".
func ShouldNotBeBlank(actual interface{}, expected ...interface{}) string {
if fail := need(0, expected); fail != success {
return fail
}
value, ok := actual.(string)
if !ok {
return fmt.Sprintf(shouldBeString, reflect.TypeOf(actual))
}
if value == "" {
return shouldNotHaveBeenBlank
}
return success
}
// ShouldEqualWithout receives exactly 3 string parameters and ensures that the first is equal to the second
// after removing all instances of the third from the first using strings.Replace(first, third, "", -1).
func ShouldEqualWithout(actual interface{}, expected ...interface{}) string {
if fail := need(2, expected); fail != success {
return fail
}
actualString, ok1 := actual.(string)
expectedString, ok2 := expected[0].(string)
replace, ok3 := expected[1].(string)
if !ok1 || !ok2 || !ok3 {
return fmt.Sprintf(shouldAllBeStrings, []reflect.Type{
reflect.TypeOf(actual),
reflect.TypeOf(expected[0]),
reflect.TypeOf(expected[1]),
})
}
replaced := strings.Replace(actualString, replace, "", -1)
if replaced == expectedString {
return ""
}
return fmt.Sprintf("Expected '%s' to equal '%s' but without any '%s' (but it didn't).", actualString, expectedString, replace)
}
// ShouldEqualTrimSpace receives exactly 2 string parameters and ensures that the first is equal to the second
// after removing all leading and trailing whitespace using strings.TrimSpace(first).
func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) string {
if fail := need(1, expected); fail != success {
return fail
}
actualString, valueIsString := actual.(string)
_, value2IsString := expected[0].(string)
if !valueIsString || !value2IsString {
return fmt.Sprintf(shouldBothBeStrings, reflect.TypeOf(actual), reflect.TypeOf(expected[0]))
}
actualString = strings.TrimSpace(actualString)
return ShouldEqual(actualString, expected[0])
}
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