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assertions.go
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assertions.go
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package main
import (
"fmt"
"regexp"
)
type Assertion func(res *httpResponse) error
func AssertStatusOK() Assertion {
return func(res *httpResponse) error {
if s := res.StatusCode; s < 200 || s >= 400 {
return fmt.Errorf("ok: expected OK, got %d (%q)",
res.StatusCode, res.Status)
}
return nil
}
}
func AssertStatusNOK() Assertion {
return func(res *httpResponse) error {
if s := res.StatusCode; s >= 200 && s < 400 {
return fmt.Errorf("nok: expected NOK, got %d (%q)",
res.StatusCode, res.Status)
}
return nil
}
}
func AssertStatusEqual(expStatus int) Assertion {
return func(res *httpResponse) error {
if res.StatusCode != expStatus {
return fmt.Errorf("status: expected %d, got %d (%q)",
expStatus, res.StatusCode, res.Status)
}
return nil
}
}
func AssertHeaderPresent(name string) Assertion {
return func(res *httpResponse) error {
if res.Header.Values(name) == nil {
return fmt.Errorf("header[%s]: expected to be present, missing", name)
}
return nil
}
}
func AssertHeaderMissing(name string) Assertion {
return func(res *httpResponse) error {
if vs := res.Header.Values(name); vs != nil {
return fmt.Errorf("header[%s]: expected to be missing, got %q", name, vs)
}
return nil
}
}
func AssertHeaderEqual(name, expValue string) Assertion {
return func(res *httpResponse) error {
vs := res.Header.Values(name)
if vs == nil {
return fmt.Errorf("header[%s]: expected %q, missing", name, expValue)
}
for _, v := range vs {
if v == expValue {
return nil
}
}
return fmt.Errorf("header[%s]: expected %q, got %q", name, expValue, vs)
}
}
func AssertHeaderMatch(name, expPattern string) Assertion {
re := regexp.MustCompile(expPattern)
return func(res *httpResponse) error {
vs := res.Header.Values(name)
if vs == nil {
return fmt.Errorf("header[%s]: expected to match %q, missing",
name, expPattern)
}
for _, v := range vs {
if re.MatchString(v) {
return nil
}
}
return fmt.Errorf("header[%s]: expected to match %q, got %q", name, expPattern, vs)
}
}
func AssertBodyEmpty() Assertion {
return func(res *httpResponse) error {
if len(res.BodyBytes) > 0 {
return fmt.Errorf("body: expected to be empty, got %q", string(res.BodyBytes))
}
return nil
}
}
func AssertBodyEqual(expContent string) Assertion {
return func(res *httpResponse) error {
if len(res.BodyBytes) == 0 {
return fmt.Errorf("body: expected %q, missing", expContent)
}
if c := string(res.BodyBytes); expContent != c {
return fmt.Errorf("body: expected %q, got %q", expContent, c)
}
return nil
}
}
func AssertBodyMatch(expPattern string) Assertion {
re := regexp.MustCompile(expPattern)
return func(res *httpResponse) error {
if len(res.BodyBytes) == 0 {
return fmt.Errorf("body: expected to match %q, missing", expPattern)
}
if c := string(res.BodyBytes); !re.MatchString(c) {
return fmt.Errorf("body: expected to match %q, got %q", expPattern, c)
}
return nil
}
}
func AssertRedirectEqual(expLocation string) Assertion {
return func(res *httpResponse) error {
if s := res.StatusCode; s < 300 || s >= 400 {
return fmt.Errorf("redirect: wrong HTTP status: got %d (%q)",
res.StatusCode, res.Status)
}
if vs := res.Header.Values("Location"); vs == nil {
return fmt.Errorf("redirect: no Location header")
}
if l := res.Header.Get("Location"); l != expLocation {
return fmt.Errorf("redirect: wrong Location: expected %q, got %q",
expLocation, l)
}
return nil
}
}
func AssertRedirectMatch(expPattern string) Assertion {
re := regexp.MustCompile(expPattern)
return func(res *httpResponse) error {
if s := res.StatusCode; s < 300 || s >= 400 {
return fmt.Errorf("redirect: wrong HTTP status: got %d (%q)",
res.StatusCode, res.Status)
}
if vs := res.Header.Values("Location"); vs == nil {
return fmt.Errorf("redirect: no Location header")
}
if l := res.Header.Get("Location"); !re.MatchString(l) {
return fmt.Errorf("redirect: wrong Location: expected to match %q, got %q",
expPattern, l)
}
return nil
}
}