func TestPost(t *testing.T) {
	const case1_empty = "/"
	const case2_set_header = "/set_header"
	const case3_send_json = "/send_json"
	const case4_send_string = "/send_string"
	const case5_integration_send_json_string = "/integration_send_json_string"
	const case6_set_query = "/set_query"
	const case7_integration_send_json_struct = "/integration_send_json_struct"
	const case8_send_json_with_long_id_number = "/send_json_with_long_id_number"
	const case9_send_json_string_with_long_id_number_as_form_result = "/send_json_string_with_long_id_number_as_form_result"
	const case10_send_struct_pointer = "/send_struct_pointer"
	const case11_send_string_pointer = "/send_string_pointer"
	const case12_send_slice_string = "/send_slice_string"
	const case13_send_slice_string_pointer = "/send_slice_string_pointer"
	const case14_send_int_pointer = "/send_int_pointer"
	const case15_send_float_pointer = "/send_float_pointer"
	const case16_send_bool_pointer = "/send_bool_pointer"
	const case17_send_string_array = "/send_string_array"
	const case18_send_string_array_pointer = "/send_string_array_pointer"
	const case19_send_struct = "/send_struct"
	const case20_send_byte_char = "/send_byte_char"
	const case21_send_byte_char_pointer = "/send_byte_char_pointer"
	const case22_send_byte_int = "/send_byte_int"
	const case22_send_byte_int_pointer = "/send_byte_int_pointer"
	const case23_send_duplicate_query_params = "/send_duplicate_query_params"
	const case24_send_query_and_request_body = "/send_query_and_request_body"
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != POST {
			t.Errorf("Expected method %q; got %q", POST, r.Method)
		}
		if r.Header == nil {
			t.Error("Expected non-nil request Header")
		}
		switch r.URL.Path {
		default:
			t.Errorf("No testing for this case yet : %q", r.URL.Path)
		case case1_empty:
			t.Logf("case %v ", case1_empty)
		case case2_set_header:
			t.Logf("case %v ", case2_set_header)
			if r.Header.Get("API-Key") != "fookey" {
				t.Errorf("Expected 'API-Key' == %q; got %q", "fookey", r.Header.Get("API-Key"))
			}
		case case3_send_json:
			t.Logf("case %v ", case3_send_json)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != `{"query1":"test","query2":"test"}` {
				t.Error(`Expected Body with {"query1":"test","query2":"test"}`, "| but got", string(body))
			}
		case case4_send_string, case11_send_string_pointer:
			t.Logf("case %v ", r.URL.Path)
			if r.Header.Get("Content-Type") != "application/x-www-form-urlencoded" {
				t.Error("Expected Header Content-Type -> application/x-www-form-urlencoded", "| but got", r.Header.Get("Content-Type"))
			}
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "query1=test&query2=test" {
				t.Error("Expected Body with \"query1=test&query2=test\"", "| but got", string(body))
			}
		case case5_integration_send_json_string:
			t.Logf("case %v ", case5_integration_send_json_string)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "query1=test&query2=test" {
				t.Error("Expected Body with \"query1=test&query2=test\"", "| but got", string(body))
			}
		case case6_set_query:
			t.Logf("case %v ", case6_set_query)
			v := r.URL.Query()
			if v["query1"][0] != "test" {
				t.Error("Expected query1:test", "| but got", v["query1"][0])
			}
			if v["query2"][0] != "test" {
				t.Error("Expected query2:test", "| but got", v["query2"][0])
			}
		case case7_integration_send_json_struct:
			t.Logf("case %v ", case7_integration_send_json_struct)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			comparedBody := []byte(`{"Lower":{"Color":"green","Size":1.7},"Upper":{"Color":"red","Size":0},"a":"a","name":"Cindy"}`)
			if !bytes.Equal(body, comparedBody) {
				t.Errorf(`Expected correct json but got ` + string(body))
			}
		case case8_send_json_with_long_id_number:
			t.Logf("case %v ", case8_send_json_with_long_id_number)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != `{"id":123456789,"name":"nemo"}` {
				t.Error(`Expected Body with {"id":123456789,"name":"nemo"}`, "| but got", string(body))
			}
		case case9_send_json_string_with_long_id_number_as_form_result:
			t.Logf("case %v ", case9_send_json_string_with_long_id_number_as_form_result)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != `id=123456789&name=nemo` {
				t.Error(`Expected Body with "id=123456789&name=nemo"`, `| but got`, string(body))
			}
		case case19_send_struct, case10_send_struct_pointer:
			t.Logf("case %v ", r.URL.Path)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			comparedBody := []byte(`{"Bfalse":false,"BoolArray":[true,false],"Btrue":true,"Float":12.345,"FloatArray":[1.23,4.56,7.89],"Int":42,"IntArray":[1,2],"String":"a string","StringArray":["string1","string2"]}`)
			if !bytes.Equal(body, comparedBody) {
				t.Errorf(`Expected correct json but got ` + string(body))
			}
		case case12_send_slice_string, case13_send_slice_string_pointer, case17_send_string_array, case18_send_string_array_pointer:
			t.Logf("case %v ", r.URL.Path)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			comparedBody := []byte(`["string1","string2"]`)
			if !bytes.Equal(body, comparedBody) {
				t.Errorf(`Expected correct json but got ` + string(body))
			}
		case case14_send_int_pointer:
			t.Logf("case %v ", case14_send_int_pointer)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "42" {
				t.Error("Expected Body with \"42\"", "| but got", string(body))
			}
		case case15_send_float_pointer:
			t.Logf("case %v ", case15_send_float_pointer)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "12.345" {
				t.Error("Expected Body with \"12.345\"", "| but got", string(body))
			}
		case case16_send_bool_pointer:
			t.Logf("case %v ", case16_send_bool_pointer)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "true" {
				t.Error("Expected Body with \"true\"", "| but got", string(body))
			}
		case case20_send_byte_char, case21_send_byte_char_pointer, case22_send_byte_int, case22_send_byte_int_pointer:
			t.Logf("case %v ", r.URL.Path)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			if string(body) != "71" {
				t.Error("Expected Body with \"71\"", "| but got", string(body))
			}
		case case23_send_duplicate_query_params:
			t.Logf("case %v ", case23_send_duplicate_query_params)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			sbody := string(body)
			if sbody != "param=4&param=3&param=2&param=1" {
				t.Error("Expected Body \"param=4&param=3&param=2&param=1\"", "| but got", sbody)
			}
			values, _ := url.ParseQuery(sbody)
			if len(values["param"]) != 4 {
				t.Error("Expected Body with 4 params", "| but got", sbody)
			}
			if values["param"][0] != "4" || values["param"][1] != "3" || values["param"][2] != "2" || values["param"][3] != "1" {
				t.Error("Expected Body with 4 params and values", "| but got", sbody)
			}
		case case24_send_query_and_request_body:
			t.Logf("case %v ", case24_send_query_and_request_body)
			defer r.Body.Close()
			body, _ := ioutil.ReadAll(r.Body)
			sbody := string(body)
			if sbody != `{"name":"jkbbwr"}` {
				t.Error(`Expected Body "{"name":"jkbbwr"}"`, "| but got", sbody)
			}
			v := r.URL.Query()
			if v["test"][0] != "true" {
				t.Error("Expected test:true", "| but got", v["test"][0])
			}
		}
	}))
	defer ts.Close()
	New().Post(ts.URL + case1_empty).
		End()
	New().Post(ts.URL+case2_set_header).
		Set("API-Key", "fookey").
		End()
	New().Post(ts.URL + case3_send_json).
		Send(`{"query1":"test"}`).
		Send(`{"query2":"test"}`).
		End()
	New().Post(ts.URL + case4_send_string).
		Send("query1=test").
		Send("query2=test").
		End()
	New().Post(ts.URL + case5_integration_send_json_string).
		Send("query1=test").
		Send(`{"query2":"test"}`).
		End()
	New().Post(ts.URL + case6_set_query).
		Query("query1=test").
		Query("query2=test").
		End()
	type Upper struct {
		Color string
		Size  int
		note  string
	}
	type Lower struct {
		Color string
		Size  float64
		note  string
	}
	type Style struct {
		Upper Upper
		Lower Lower
		Name  string `json:"name"`
	}
	myStyle := Style{Upper: Upper{Color: "red"}, Name: "Cindy", Lower: Lower{Color: "green", Size: 1.7}}
	New().Post(ts.URL + case7_integration_send_json_struct).
		Send(`{"a":"a"}`).
		Send(myStyle).
		End()
	New().Post(ts.URL + case8_send_json_with_long_id_number).
		Send(`{"id":123456789, "name":"nemo"}`).
		End()
	New().Post(ts.URL + case9_send_json_string_with_long_id_number_as_form_result).
		Type("form").
		Send(`{"id":123456789, "name":"nemo"}`).
		End()
	payload := testStruct{
		String:      "a string",
		Int:         42,
		Btrue:       true,
		Bfalse:      false,
		Float:       12.345,
		StringArray: []string{"string1", "string2"},
		IntArray:    []int{1, 2},
		BoolArray:   []bool{true, false},
		FloatArray:  []float64{1.23, 4.56, 7.89},
	}
	New().Post(ts.URL + case10_send_struct_pointer).
		Send(&payload).
		End()
	New().Post(ts.URL + case19_send_struct).
		Send(payload).
		End()
	s1 := "query1=test"
	s2 := "query2=test"
	New().Post(ts.URL + case11_send_string_pointer).
		Send(&s1).
		Send(&s2).
		End()
	New().Post(ts.URL + case12_send_slice_string).
		Send([]string{"string1", "string2"}).
		End()
	New().Post(ts.URL + case13_send_slice_string_pointer).
		Send(&[]string{"string1", "string2"}).
		End()
	i := 42
	New().Post(ts.URL + case14_send_int_pointer).
		Send(&i).
		End()
	f := 12.345
	New().Post(ts.URL + case15_send_float_pointer).
		Send(&f).
		End()
	b := true
	New().Post(ts.URL + case16_send_bool_pointer).
		Send(&b).
		End()
	var a [2]string
	a[0] = "string1"
	a[1] = "string2"
	New().Post(ts.URL + case17_send_string_array).
		Send(a).
		End()
	New().Post(ts.URL + case18_send_string_array_pointer).
		Send(&a).
		End()
	aByte := byte('G')  
	New().Post(ts.URL + case20_send_byte_char).
		Send(aByte).
		End()
	New().Post(ts.URL + case21_send_byte_char_pointer).
		Send(&aByte).
		End()
	iByte := byte(71)  
	New().Post(ts.URL + case22_send_byte_int).
		Send(iByte).
		End()
	New().Post(ts.URL + case22_send_byte_int_pointer).
		Send(&iByte).
		End()
	New().Post(ts.URL + case23_send_duplicate_query_params).
		Send("param=1").
		Send("param=2").
		Send("param=3&param=4").
		End()
	data24 := struct {
		Name string `json:"name"`
	}{"jkbbwr"}
	New().Post(ts.URL + case24_send_query_and_request_body).
		Query("test=true").
		Send(data24).
		End()
}
testing for POST method
package gorequest
import (
	"bytes"
	"encoding/base64"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"net/http/httptest"
	"net/url"
	"reflect"
	"strconv"
	"strings"
	"testing"
	"time"
	"mime/multipart"
	"os"
	"github.com/elazarl/goproxy"
)
type (
	heyYou struct {
		Hey string `json:"hey"`
	}
	testStruct struct {
		String      string
		Int         int
		Btrue       bool
		Bfalse      bool
		Float       float64
		StringArray []string
		IntArray    []int
		BoolArray   []bool
		FloatArray  []float64
	}
)
func TestTypeConstants(t *testing.T) {
	if TypeJSON != "json" {
		t.Errorf("Expected TypeJSON -> json | but got %s", TypeJSON)
	}
	if TypeXML != "xml" {
		t.Errorf("Expected TypeXML -> xml | but got %s", TypeXML)
	}
	if TypeForm != "form" {
		t.Errorf("Expected TypeForm -> form | but got %s", TypeForm)
	}
	if TypeFormData != "form-data" {
		t.Errorf("Expected TypeFormData -> form-data | but got %s", TypeFormData)
	}
	if TypeUrlencoded != "urlencoded" {
		t.Errorf("Expected TypeUrlencoded -> urlencoded | but got %s", TypeUrlencoded)
	}
	if TypeHTML != "html" {
		t.Errorf("Expected TypeHTML -> html | but got %s", TypeHTML)
	}
	if TypeText != "text" {
		t.Errorf("Expected TypeText -> text | but got %s", TypeText)
	}
	if TypeMultipart != "multipart" {
		t.Errorf("Expected TypeMultipart -> multipart | but got %s", TypeMultipart)
	}
}
func TestTypesMap(t *testing.T) {
	if Types[TypeJSON] != "application/json" {
		t.Errorf(`Expected Types["json"] -> "application/json" | but got %s`, Types[TypeJSON])
	}
	if Types[TypeXML] != "application/xml" {
		t.Errorf(`Expected Types["xml"] -> "applicaion/xml" | but got %s`, Types[TypeXML])
	}
	if Types[TypeForm] != "application/x-www-form-urlencoded" {
		t.Errorf(`Expected Types["form"] -> "application/x-www-form-urlencoded" | but got %s`, Types[TypeForm])
	}
	if Types[TypeFormData] != "application/x-www-form-urlencoded" {
		t.Errorf(`Expected Types["form-data"] -> "application/x-www-form-urlencoded" | but got %s`, Types[TypeFormData])
	}
	if Types[TypeUrlencoded] != "application/x-www-form-urlencoded" {
		t.Errorf(`Expected Types["urlencoded"] -> "application/x-www-form-urlencoded" | but got %s`, Types[TypeUrlencoded])
	}
	if Types[TypeHTML] != "text/html" {
		t.Errorf(`Expected Types["html"] -> "text/html" | but got %s`, Types[TypeHTML])
	}
	if Types[TypeText] != "text/plain" {
		t.Errorf(`Expected Types["text"] -> "text/plain" | but got %s`, Types[TypeText])
	}
	if Types[TypeMultipart] != "multipart/form-data" {
		t.Errorf(`Expected Types["multipart"] -> "multipart/form-data" | but got %s`, Types[TypeMultipart])
	}
}
func TestChangeMapToURLValues(t *testing.T) {
	data := map[string]interface{}{
		"s":  "a string",
		"i":  42,
		"bt": true,
		"bf": false,
		"f":  12.345,
		"sa": []string{"s1", "s2"},
		"ia": []int{47, 73},
		"fa": []float64{1.23, 4.56},
		"ba": []bool{true, false},
	}
	urlValues := changeMapToURLValues(data)
	var (
		s  string
		sd string
	)
	if s := urlValues.Get("s"); s != data["s"] {
		t.Errorf("Expected string %v, got %v", data["s"], s)
	}
	s = urlValues.Get("i")
	sd = strconv.Itoa(data["i"].(int))
	if s != sd {
		t.Errorf("Expected int %v, got %v", sd, s)
	}
	s = urlValues.Get("bt")
	sd = strconv.FormatBool(data["bt"].(bool))
	if s != sd {
		t.Errorf("Expected boolean %v, got %v", sd, s)
	}
	s = urlValues.Get("bf")
	sd = strconv.FormatBool(data["bf"].(bool))
	if s != sd {
		t.Errorf("Expected boolean %v, got %v", sd, s)
	}
	s = urlValues.Get("f")
	sd = strconv.FormatFloat(data["f"].(float64), 'f', -1, 64)
	if s != sd {
		t.Errorf("Expected float %v, got %v", data["f"], s)
	}
	if size := len(urlValues["sa"]); size != 2 {
		t.Fatalf("Expected length %v, got %v", 2, size)
	}
	if urlValues["sa"][0] != "s1" {
		t.Errorf("Expected string %v, got %v", "s1", urlValues["sa"][0])
	}
	if urlValues["sa"][1] != "s2" {
		t.Errorf("Expected string %v, got %v", "s2", urlValues["sa"][1])
	}
	if size := len(urlValues["ia"]); size != 2 {
		t.Fatalf("Expected length %v, got %v", 2, size)
	}
	if urlValues["ia"][0] != "47" {
		t.Errorf("Expected string %v, got %v", "47", urlValues["ia"][0])
	}
	if urlValues["ia"][1] != "73" {
		t.Errorf("Expected string %v, got %v", "73", urlValues["ia"][1])
	}
	if size := len(urlValues["ba"]); size != 2 {
		t.Fatalf("Expected length %v, got %v", 2, size)
	}
	if urlValues["ba"][0] != "true" {
		t.Errorf("Expected string %v, got %v", "true", urlValues["ba"][0])
	}
	if urlValues["ba"][1] != "false" {
		t.Errorf("Expected string %v, got %v", "false", urlValues["ba"][1])
	}
	if size := len(urlValues["fa"]); size != 2 {
		t.Fatalf("Expected length %v, got %v", 2, size)
	}
	if urlValues["fa"][0] != "1.23" {
		t.Errorf("Expected string %v, got %v", "true", urlValues["fa"][0])
	}
	if urlValues["fa"][1] != "4.56" {
		t.Errorf("Expected string %v, got %v", "false", urlValues["fa"][1])
	}
}
func TestMakeRequest(t *testing.T) {
	var err error
	var cases = []struct {
		m string
		s *SuperAgent
	}{
		{POST, New().Post("/")},
		{GET, New().Get("/")},
		{HEAD, New().Head("/")},
		{PUT, New().Put("/")},
		{PATCH, New().Patch("/")},
		{DELETE, New().Delete("/")},
		{OPTIONS, New().Options("/")},
		{"TRACE", New().CustomMethod("TRACE", "/")},  
	}
	for _, c := range cases {
		_, err = c.s.MakeRequest()
		if err != nil {
			t.Errorf("Expected nil error for method %q; got %q", c.m, err.Error())
		}
	}
	_, err = New().CustomMethod("", "/").MakeRequest()
	if err == nil {
		t.Errorf("Expected non-nil error for empty method; got %q", err.Error())
	}
}
func TestGet(t *testing.T) {
	const case1_empty = "/"
	const case2_set_header = "/set_header"
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != GET {
			t.Errorf("Expected method %q; got %q", GET, r.Method)
		}
		if r.Header == nil {
			t.Error("Expected non-nil request Header")
		}
		switch r.URL.Path {
		default:
			t.Errorf("No testing for this case yet : %q", r.URL.Path)
		case case1_empty:
			t.Logf("case %v ", case1_empty)
		case case2_set_header:
			t.Logf("case %v ", case2_set_header)
			if r.Header.Get("API-Key") != "fookey" {
				t.Errorf("Expected 'API-Key' == %q; got %q", "fookey", r.Header.Get("API-Key"))
			}
		}
	}))
	defer ts.Close()
	New().Get(ts.URL + case1_empty).
		End()
	New().Get(ts.URL+case2_set_header).
		Set("API-Key", "fookey").
		End()
}
func TestRetryGet(t *testing.T) {
	const (
		case1_empty                         = "/"
		case24_after_3_attempt_return_valid = "/retry_3_attempt_then_valid"
		retry_count_expected                = "3"
	)
	var attempt int
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != GET {
			t.Errorf("Expected method %q; got %q", GET, r.Method)
		}
		if r.Header == nil {
			t.Error("Expected non-nil request Header")
		}
		switch r.URL.Path {
		default:
			t.Errorf("No testing for this case yet : %q", r.URL.Path)
		case case1_empty:
			w.WriteHeader(400)
			t.Logf("case %v ", case1_empty)
		case case24_after_3_attempt_return_valid:
			if attempt == 3 {
				w.WriteHeader(200)
			} else {
				w.WriteHeader(400)
				t.Logf("case %v ", case24_after_3_attempt_return_valid)
			}
			attempt++
		}
	}))
	defer ts.Close()
	resp, _, errs := New().Get(ts.URL+case1_empty).
		Retry(3, 1*time.Nanosecond, http.StatusBadRequest).
		End()
	if errs != nil {
		t.Errorf("No testing for this case yet : %q", errs)
	}
	retryCountReturn := resp.Header.Get("Retry-Count")
	if retryCountReturn != retry_count_expected {
		t.Errorf("Expected [%s] retry but was [%s]", retry_count_expected, retryCountReturn)
	}
	resp, _, errs = New().Get(ts.URL+case24_after_3_attempt_return_valid).
		Retry(4, 1*time.Nanosecond, http.StatusBadRequest).
		End()
	if errs != nil {
		t.Errorf("No testing for this case yet : %q", errs)
	}
	retryCountReturn = resp.Header.Get("Retry-Count")
	if retryCountReturn != retry_count_expected {
		t.Errorf("Expected [%s] retry but was [%s]", retry_count_expected, retryCountReturn)
	}
}
func TestOptions(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != OPTIONS {
			t.Errorf("Expected method %q; got %q", OPTIONS, r.Method)
		}
		t.Log("test Options")
		w.Header().Set("Allow", "HEAD, GET")
		w.WriteHeader(204)
	}))
	defer ts.Close()
	New().Options(ts.URL).
		End()
}
func TestResetBody(t *testing.T) {
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Write([]byte("Just some text"))
	}))
	defer ts.Close()
	resp, _, _ := New().Get(ts.URL).End()
	bodyBytes, _ := ioutil.ReadAll(resp.Body)
	if string(bodyBytes) != "Just some text" {
		t.Error("Expected to be able to reuse the response body")
	}
}
func TestParam(t *testing.T) {
	paramCode := "123456"
	paramFields := "f1;f2;f3"
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Form.Get("code") != paramCode {
			t.Errorf("Expected 'code' == %s; got %v", paramCode, r.Form.Get("code"))
		}
		if r.Form.Get("fields") != paramFields {
			t.Errorf("Expected 'fields' == %s; got %v", paramFields, r.Form.Get("fields"))
		}
	}))
	defer ts.Close()
	New().Get(ts.URL).
		Param("code", paramCode).
		Param("fields", paramFields)
}