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3252 lines (3031 loc) · 92.9 KB
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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: © 2015 LabStack LLC and Echo contributors
package echo
import (
"encoding/json"
"errors"
"fmt"
"github.com/stretchr/testify/assert"
"io"
"math/big"
"net/http"
"net/http/httptest"
"strconv"
"strings"
"testing"
"time"
)
func createTestContext(URL string, body io.Reader, pathValues map[string]string) *Context {
e := New()
req := httptest.NewRequest(http.MethodGet, URL, body)
if body != nil {
req.Header.Set(HeaderContentType, MIMEApplicationJSON)
}
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
if len(pathValues) > 0 {
params := make(PathValues, 0)
for name, value := range pathValues {
params = append(params, PathValue{
Name: name,
Value: value,
})
}
c.SetPathValues(params)
}
return c
}
func TestBindingError_Error(t *testing.T) {
err := NewBindingError("id", []string{"1", "nope"}, "bind failed", errors.New("internal error"))
assert.EqualError(t, err, `code=400, message=bind failed, err=internal error, field=id`)
bErr := err.(*BindingError)
assert.Equal(t, 400, bErr.Code)
assert.Equal(t, "bind failed", bErr.Message)
assert.Equal(t, errors.New("internal error"), bErr.err)
assert.Equal(t, "id", bErr.Field)
assert.Equal(t, []string{"1", "nope"}, bErr.Values)
}
func TestBindingError_ErrorJSON(t *testing.T) {
err := NewBindingError("id", []string{"1", "nope"}, "bind failed", errors.New("internal error"))
resp, _ := json.Marshal(err)
assert.Equal(t, `{"field":"id","message":"bind failed"}`, string(resp))
}
func TestPathValuesBinder(t *testing.T) {
c := createTestContext("/api/user/999", nil, map[string]string{
"id": "1",
"nr": "2",
"slice": "3",
})
b := PathValuesBinder(c)
id := int64(99)
nr := int64(88)
var slice = make([]int64, 0)
var notExisting = make([]int64, 0)
err := b.Int64("id", &id).
Int64("nr", &nr).
Int64s("slice", &slice).
Int64s("not_existing", ¬Existing).
BindError()
assert.NoError(t, err)
assert.Equal(t, int64(1), id)
assert.Equal(t, int64(2), nr)
assert.Equal(t, []int64{3}, slice) // binding params to slice does not make sense but it should not panic either
assert.Equal(t, []int64{}, notExisting) // binding params to slice does not make sense but it should not panic either
}
func TestQueryParamsBinder_FailFast(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError []string
givenFailFast bool
}{
{
name: "ok, FailFast=true stops at first error",
whenURL: "/api/user/999?nr=en&id=nope",
givenFailFast: true,
expectError: []string{
`code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing "nope": invalid syntax, field=id`,
},
},
{
name: "ok, FailFast=false encounters all errors",
whenURL: "/api/user/999?nr=en&id=nope",
givenFailFast: false,
expectError: []string{
`code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing "nope": invalid syntax, field=id`,
`code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing "en": invalid syntax, field=nr`,
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, map[string]string{"id": "999"})
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
id := int64(99)
nr := int64(88)
errs := b.Int64("id", &id).
Int64("nr", &nr).
BindErrors()
assert.Len(t, errs, len(tc.expectError))
for _, err := range errs {
assert.Contains(t, tc.expectError, err.Error())
}
})
}
}
func TestFormFieldBinder(t *testing.T) {
e := New()
body := `texta=foo&slice=5`
req := httptest.NewRequest(http.MethodPost, "/api/search?id=1&nr=2&slice=3&slice=4", strings.NewReader(body))
req.Header.Set(HeaderContentLength, strconv.Itoa(len(body)))
req.Header.Set(HeaderContentType, MIMEApplicationForm)
rec := httptest.NewRecorder()
c := e.NewContext(req, rec)
b := FormFieldBinder(c)
var texta string
id := int64(99)
nr := int64(88)
var slice = make([]int64, 0)
var notExisting = make([]int64, 0)
err := b.
Int64s("slice", &slice).
Int64("id", &id).
Int64("nr", &nr).
String("texta", &texta).
Int64s("notExisting", ¬Existing).
BindError()
assert.NoError(t, err)
assert.Equal(t, "foo", texta)
assert.Equal(t, int64(1), id)
assert.Equal(t, int64(2), nr)
assert.Equal(t, []int64{5, 3, 4}, slice)
assert.Equal(t, []int64{}, notExisting)
}
func TestValueBinder_errorStopsBinding(t *testing.T) {
// this test documents "feature" that binding multiple params can change destination if it was bound before
// failing parameter binding
c := createTestContext("/api/user/999?id=1&nr=nope", nil, nil)
b := QueryParamsBinder(c)
id := int64(99) // will be changed before nr binding fails
nr := int64(88) // will not be changed
err := b.Int64("id", &id).
Int64("nr", &nr).
BindError()
assert.EqualError(t, err, "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=nr")
assert.Equal(t, int64(1), id)
assert.Equal(t, int64(88), nr)
}
func TestValueBinder_BindError(t *testing.T) {
c := createTestContext("/api/user/999?nr=en&id=nope", nil, nil)
b := QueryParamsBinder(c)
id := int64(99)
nr := int64(88)
err := b.Int64("id", &id).
Int64("nr", &nr).
BindError()
assert.EqualError(t, err, "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=id")
assert.Nil(t, b.errors)
assert.Nil(t, b.BindError())
}
func TestValueBinder_GetValues(t *testing.T) {
var testCases = []struct {
whenValuesFunc func(sourceParam string) []string
name string
expectError string
expect []int64
}{
{
name: "ok, default implementation",
expect: []int64{1, 101},
},
{
name: "ok, values returns nil",
whenValuesFunc: func(sourceParam string) []string {
return nil
},
expect: []int64(nil),
},
{
name: "ok, values returns empty slice",
whenValuesFunc: func(sourceParam string) []string {
return []string{}
},
expect: []int64(nil),
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext("/search?nr=en&id=1&id=101", nil, nil)
b := QueryParamsBinder(c)
if tc.whenValuesFunc != nil {
b.ValuesFunc = tc.whenValuesFunc
}
var IDs []int64
err := b.Int64s("id", &IDs).BindError()
assert.Equal(t, tc.expect, IDs)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_CustomFuncWithError(t *testing.T) {
c := createTestContext("/search?nr=en&id=1&id=101", nil, nil)
b := QueryParamsBinder(c)
id := int64(99)
givenCustomFunc := func(values []string) []error {
assert.Equal(t, []string{"1", "101"}, values)
return []error{
errors.New("first error"),
errors.New("second error"),
}
}
err := b.CustomFunc("id", givenCustomFunc).BindError()
assert.Equal(t, int64(99), id)
assert.EqualError(t, err, "first error")
}
func TestValueBinder_CustomFunc(t *testing.T) {
var testCases = []struct {
expectValue any
name string
whenURL string
givenFuncErrors []error
expectParamValues []string
expectErrors []string
givenFailFast bool
}{
{
name: "ok, binds value",
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(1000),
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nr=en",
expectParamValues: []string{},
expectValue: int64(99),
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(99),
expectErrors: []string{"previous error"},
},
{
name: "nok, func returns errors",
givenFuncErrors: []error{
errors.New("first error"),
errors.New("second error"),
},
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(99),
expectErrors: []string{"first error", "second error"},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
id := int64(99)
givenCustomFunc := func(values []string) []error {
assert.Equal(t, tc.expectParamValues, values)
if tc.givenFuncErrors == nil {
id = 1000 // emulated conversion and setting value
return nil
}
return tc.givenFuncErrors
}
errs := b.CustomFunc("id", givenCustomFunc).BindErrors()
assert.Equal(t, tc.expectValue, id)
if tc.expectErrors != nil {
assert.Len(t, errs, len(tc.expectErrors))
for _, err := range errs {
assert.Contains(t, tc.expectErrors, err.Error())
}
} else {
assert.Nil(t, errs)
}
})
}
}
func TestValueBinder_MustCustomFunc(t *testing.T) {
var testCases = []struct {
expectValue any
name string
whenURL string
givenFuncErrors []error
expectParamValues []string
expectErrors []string
givenFailFast bool
}{
{
name: "ok, binds value",
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(1000),
},
{
name: "nok, params values empty, returns error, value is not changed",
whenURL: "/search?nr=en",
expectParamValues: []string{},
expectValue: int64(99),
expectErrors: []string{"code=400, message=required field value is empty, field=id"},
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(99),
expectErrors: []string{"previous error"},
},
{
name: "nok, func returns errors",
givenFuncErrors: []error{
errors.New("first error"),
errors.New("second error"),
},
whenURL: "/search?nr=en&id=1&id=100",
expectParamValues: []string{"1", "100"},
expectValue: int64(99),
expectErrors: []string{"first error", "second error"},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
id := int64(99)
givenCustomFunc := func(values []string) []error {
assert.Equal(t, tc.expectParamValues, values)
if tc.givenFuncErrors == nil {
id = 1000 // emulated conversion and setting value
return nil
}
return tc.givenFuncErrors
}
errs := b.MustCustomFunc("id", givenCustomFunc).BindErrors()
assert.Equal(t, tc.expectValue, id)
if tc.expectErrors != nil {
assert.Len(t, errs, len(tc.expectErrors))
for _, err := range errs {
assert.Contains(t, tc.expectErrors, err.Error())
}
} else {
assert.Nil(t, errs)
}
})
}
}
func TestValueBinder_String(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectValue string
expectError string
givenBindErrors []error
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=en¶m=de",
expectValue: "en",
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nr=en",
expectValue: "default",
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?nr=en&id=1&id=100",
expectValue: "default",
expectError: "previous error",
},
{
name: "ok (must), binds value",
whenMust: true,
whenURL: "/search?param=en¶m=de",
expectValue: "en",
},
{
name: "ok (must), params values empty, returns error, value is not changed",
whenMust: true,
whenURL: "/search?nr=en",
expectValue: "default",
expectError: "code=400, message=required field value is empty, field=param",
},
{
name: "nok (must), previous errors fail fast without binding value",
givenFailFast: true,
whenMust: true,
whenURL: "/search?nr=en&id=1&id=100",
expectValue: "default",
expectError: "previous error",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
dest := "default"
var err error
if tc.whenMust {
err = b.MustString("param", &dest).BindError()
} else {
err = b.String("param", &dest).BindError()
}
assert.Equal(t, tc.expectValue, dest)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_Strings(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError string
givenBindErrors []error
expectValue []string
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=en¶m=de",
expectValue: []string{"en", "de"},
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nr=en",
expectValue: []string{"default"},
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?nr=en&id=1&id=100",
expectValue: []string{"default"},
expectError: "previous error",
},
{
name: "ok (must), binds value",
whenMust: true,
whenURL: "/search?param=en¶m=de",
expectValue: []string{"en", "de"},
},
{
name: "ok (must), params values empty, returns error, value is not changed",
whenMust: true,
whenURL: "/search?nr=en",
expectValue: []string{"default"},
expectError: "code=400, message=required field value is empty, field=param",
},
{
name: "nok (must), previous errors fail fast without binding value",
givenFailFast: true,
whenMust: true,
whenURL: "/search?nr=en&id=1&id=100",
expectValue: []string{"default"},
expectError: "previous error",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
dest := []string{"default"}
var err error
if tc.whenMust {
err = b.MustStrings("param", &dest).BindError()
} else {
err = b.Strings("param", &dest).BindError()
}
assert.Equal(t, tc.expectValue, dest)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_Int64_intValue(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError string
givenBindErrors []error
expectValue int64
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=1¶m=100",
expectValue: 1,
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nope=1",
expectValue: 99,
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?param=1¶m=100",
expectValue: 99,
expectError: "previous error",
},
{
name: "nok, conversion fails, value is not changed",
whenURL: "/search?param=nope¶m=100",
expectValue: 99,
expectError: "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=param",
},
{
name: "ok (must), binds value",
whenMust: true,
whenURL: "/search?param=1¶m=100",
expectValue: 1,
},
{
name: "ok (must), params values empty, returns error, value is not changed",
whenMust: true,
whenURL: "/search?nope=1",
expectValue: 99,
expectError: "code=400, message=required field value is empty, field=param",
},
{
name: "nok (must), previous errors fail fast without binding value",
givenFailFast: true,
whenMust: true,
whenURL: "/search?param=1¶m=100",
expectValue: 99,
expectError: "previous error",
},
{
name: "nok (must), conversion fails, value is not changed",
whenMust: true,
whenURL: "/search?param=nope¶m=100",
expectValue: 99,
expectError: "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=param",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
dest := int64(99)
var err error
if tc.whenMust {
err = b.MustInt64("param", &dest).BindError()
} else {
err = b.Int64("param", &dest).BindError()
}
assert.Equal(t, tc.expectValue, dest)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_Int_errorMessage(t *testing.T) {
// int/uint (without byte size) has a little bit different error message so test these separately
c := createTestContext("/search?param=nope", nil, nil)
b := QueryParamsBinder(c).FailFast(false)
destInt := 99
destUint := uint(98)
errs := b.Int("param", &destInt).Uint("param", &destUint).BindErrors()
assert.Equal(t, 99, destInt)
assert.Equal(t, uint(98), destUint)
assert.EqualError(t, errs[0], `code=400, message=failed to bind field value to int, err=strconv.ParseInt: parsing "nope": invalid syntax, field=param`)
assert.EqualError(t, errs[1], `code=400, message=failed to bind field value to uint, err=strconv.ParseUint: parsing "nope": invalid syntax, field=param`)
}
func TestValueBinder_Uint64_uintValue(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError string
givenBindErrors []error
expectValue uint64
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=1¶m=100",
expectValue: 1,
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nope=1",
expectValue: 99,
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?param=1¶m=100",
expectValue: 99,
expectError: "previous error",
},
{
name: "nok, conversion fails, value is not changed",
whenURL: "/search?param=nope¶m=100",
expectValue: 99,
expectError: "code=400, message=failed to bind field value to uint64, err=strconv.ParseUint: parsing \"nope\": invalid syntax, field=param",
},
{
name: "ok (must), binds value",
whenMust: true,
whenURL: "/search?param=1¶m=100",
expectValue: 1,
},
{
name: "ok (must), params values empty, returns error, value is not changed",
whenMust: true,
whenURL: "/search?nope=1",
expectValue: 99,
expectError: "code=400, message=required field value is empty, field=param",
},
{
name: "nok (must), previous errors fail fast without binding value",
givenFailFast: true,
whenMust: true,
whenURL: "/search?param=1¶m=100",
expectValue: 99,
expectError: "previous error",
},
{
name: "nok (must), conversion fails, value is not changed",
whenMust: true,
whenURL: "/search?param=nope¶m=100",
expectValue: 99,
expectError: "code=400, message=failed to bind field value to uint64, err=strconv.ParseUint: parsing \"nope\": invalid syntax, field=param",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
dest := uint64(99)
var err error
if tc.whenMust {
err = b.MustUint64("param", &dest).BindError()
} else {
err = b.Uint64("param", &dest).BindError()
}
assert.Equal(t, tc.expectValue, dest)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_Int_Types(t *testing.T) {
type target struct {
int64 int64
mustInt64 int64
uint64 uint64
mustUint64 uint64
int32 int32
mustInt32 int32
uint32 uint32
mustUint32 uint32
int16 int16
mustInt16 int16
uint16 uint16
mustUint16 uint16
int8 int8
mustInt8 int8
uint8 uint8
mustUint8 uint8
byte byte
mustByte byte
int int
mustInt int
uint uint
mustUint uint
}
types := []string{
"int64=1",
"mustInt64=2",
"uint64=3",
"mustUint64=4",
"int32=5",
"mustInt32=6",
"uint32=7",
"mustUint32=8",
"int16=9",
"mustInt16=10",
"uint16=11",
"mustUint16=12",
"int8=13",
"mustInt8=14",
"uint8=15",
"mustUint8=16",
"byte=17",
"mustByte=18",
"int=19",
"mustInt=20",
"uint=21",
"mustUint=22",
}
c := createTestContext("/search?"+strings.Join(types, "&"), nil, nil)
b := QueryParamsBinder(c)
dest := target{}
err := b.
Int64("int64", &dest.int64).
MustInt64("mustInt64", &dest.mustInt64).
Uint64("uint64", &dest.uint64).
MustUint64("mustUint64", &dest.mustUint64).
Int32("int32", &dest.int32).
MustInt32("mustInt32", &dest.mustInt32).
Uint32("uint32", &dest.uint32).
MustUint32("mustUint32", &dest.mustUint32).
Int16("int16", &dest.int16).
MustInt16("mustInt16", &dest.mustInt16).
Uint16("uint16", &dest.uint16).
MustUint16("mustUint16", &dest.mustUint16).
Int8("int8", &dest.int8).
MustInt8("mustInt8", &dest.mustInt8).
Uint8("uint8", &dest.uint8).
MustUint8("mustUint8", &dest.mustUint8).
Byte("byte", &dest.byte).
MustByte("mustByte", &dest.mustByte).
Int("int", &dest.int).
MustInt("mustInt", &dest.mustInt).
Uint("uint", &dest.uint).
MustUint("mustUint", &dest.mustUint).
BindError()
assert.NoError(t, err)
assert.Equal(t, int64(1), dest.int64)
assert.Equal(t, int64(2), dest.mustInt64)
assert.Equal(t, uint64(3), dest.uint64)
assert.Equal(t, uint64(4), dest.mustUint64)
assert.Equal(t, int32(5), dest.int32)
assert.Equal(t, int32(6), dest.mustInt32)
assert.Equal(t, uint32(7), dest.uint32)
assert.Equal(t, uint32(8), dest.mustUint32)
assert.Equal(t, int16(9), dest.int16)
assert.Equal(t, int16(10), dest.mustInt16)
assert.Equal(t, uint16(11), dest.uint16)
assert.Equal(t, uint16(12), dest.mustUint16)
assert.Equal(t, int8(13), dest.int8)
assert.Equal(t, int8(14), dest.mustInt8)
assert.Equal(t, uint8(15), dest.uint8)
assert.Equal(t, uint8(16), dest.mustUint8)
assert.Equal(t, uint8(17), dest.byte)
assert.Equal(t, uint8(18), dest.mustByte)
assert.Equal(t, 19, dest.int)
assert.Equal(t, 20, dest.mustInt)
assert.Equal(t, uint(21), dest.uint)
assert.Equal(t, uint(22), dest.mustUint)
}
func TestValueBinder_Int64s_intsValue(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError string
givenBindErrors []error
expectValue []int64
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=1¶m=2¶m=1",
expectValue: []int64{1, 2, 1},
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nope=1",
expectValue: []int64{99},
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?param=1¶m=100",
expectValue: []int64{99},
expectError: "previous error",
},
{
name: "nok, conversion fails, value is not changed",
whenURL: "/search?param=nope¶m=100",
expectValue: []int64{99},
expectError: "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=param",
},
{
name: "ok (must), binds value",
whenMust: true,
whenURL: "/search?param=1¶m=2¶m=1",
expectValue: []int64{1, 2, 1},
},
{
name: "ok (must), params values empty, returns error, value is not changed",
whenMust: true,
whenURL: "/search?nope=1",
expectValue: []int64{99},
expectError: "code=400, message=required field value is empty, field=param",
},
{
name: "nok (must), previous errors fail fast without binding value",
givenFailFast: true,
whenMust: true,
whenURL: "/search?param=1¶m=100",
expectValue: []int64{99},
expectError: "previous error",
},
{
name: "nok (must), conversion fails, value is not changed",
whenMust: true,
whenURL: "/search?param=nope¶m=100",
expectValue: []int64{99},
expectError: "code=400, message=failed to bind field value to int64, err=strconv.ParseInt: parsing \"nope\": invalid syntax, field=param",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
c := createTestContext(tc.whenURL, nil, nil)
b := QueryParamsBinder(c).FailFast(tc.givenFailFast)
if tc.givenFailFast {
b.errors = []error{errors.New("previous error")}
}
dest := []int64{99} // when values are set with bind - contents before bind is gone
var err error
if tc.whenMust {
err = b.MustInt64s("param", &dest).BindError()
} else {
err = b.Int64s("param", &dest).BindError()
}
assert.Equal(t, tc.expectValue, dest)
if tc.expectError != "" {
assert.EqualError(t, err, tc.expectError)
} else {
assert.NoError(t, err)
}
})
}
}
func TestValueBinder_Uint64s_uintsValue(t *testing.T) {
var testCases = []struct {
name string
whenURL string
expectError string
givenBindErrors []error
expectValue []uint64
givenFailFast bool
whenMust bool
}{
{
name: "ok, binds value",
whenURL: "/search?param=1¶m=2¶m=1",
expectValue: []uint64{1, 2, 1},
},
{
name: "ok, params values empty, value is not changed",
whenURL: "/search?nope=1",
expectValue: []uint64{99},
},
{
name: "nok, previous errors fail fast without binding value",
givenFailFast: true,
whenURL: "/search?param=1¶m=100",
expectValue: []uint64{99},
expectError: "previous error",
},
{
name: "nok, conversion fails, value is not changed",
whenURL: "/search?param=nope¶m=100",
expectValue: []uint64{99},