github.com/99designs/gqlgen@v0.17.45/graphql/playground/playground_test.go (about)

     1  package playground
     2  
     3  import (
     4  	"fmt"
     5  	"io"
     6  	"net/http"
     7  	"net/http/httptest"
     8  	"regexp"
     9  	"testing"
    10  )
    11  
    12  func TestHandler_createsAbsoluteURLs(t *testing.T) {
    13  	rec := httptest.NewRecorder()
    14  	req := httptest.NewRequest(http.MethodGet, "https://example.org/query", nil)
    15  	h := Handler("example.org API", "https://example.org/query")
    16  	h.ServeHTTP(rec, req)
    17  
    18  	res := rec.Result()
    19  	defer res.Body.Close()
    20  	if res.StatusCode != http.StatusOK {
    21  		t.Errorf("res.StatusCode = %d; want %d", res.StatusCode, http.StatusOK)
    22  	}
    23  
    24  	b, err := io.ReadAll(res.Body)
    25  	if err != nil {
    26  		panic(fmt.Errorf("reading res.Body: %w", err))
    27  	}
    28  
    29  	want := regexp.MustCompile(`(?m)^.*url\s*=\s*['"]https:\/\/example\.org\/query["'].*$`)
    30  	if !want.Match(b) {
    31  		t.Errorf("no match for %s in response body", want.String())
    32  	}
    33  
    34  	wantSubURL := regexp.MustCompile(`(?m)^.*subscriptionUrl\s*=\s*['"]wss:\/\/example\.org\/query["'].*$`)
    35  	if !wantSubURL.Match(b) {
    36  		t.Errorf("no match for %s in response body", wantSubURL.String())
    37  	}
    38  
    39  	wantMetaCharsetElement := regexp.MustCompile(`<head>\n\s{0,}<meta charset="utf-8">\n\s{0,}.*<title>`) // <meta> element must be in <head> and before <title>
    40  	if !wantMetaCharsetElement.Match(b) {
    41  		t.Errorf("no match for %s in response body", wantMetaCharsetElement.String())
    42  	}
    43  }
    44  
    45  func TestHandler_createsRelativeURLs(t *testing.T) {
    46  	rec := httptest.NewRecorder()
    47  	req := httptest.NewRequest(http.MethodGet, "http://localhost:8080/query", nil)
    48  	h := Handler("example.org API", "/customquery")
    49  	h.ServeHTTP(rec, req)
    50  
    51  	res := rec.Result()
    52  	defer res.Body.Close()
    53  	if res.StatusCode != http.StatusOK {
    54  		t.Errorf("res.StatusCode = %d; want %d", res.StatusCode, http.StatusOK)
    55  	}
    56  	if res.Header.Get("Content-Type") != "text/html; charset=UTF-8" {
    57  		t.Errorf("res.Header.Get(\"Content-Type\") = %q; want %q", res.Header.Get("Content-Type"), "text/html; charset=UTF-8")
    58  	}
    59  
    60  	b, err := io.ReadAll(res.Body)
    61  	if err != nil {
    62  		panic(fmt.Errorf("reading res.Body: %w", err))
    63  	}
    64  
    65  	wantURL := regexp.MustCompile(`(?m)^.*url\s*=\s*location\.protocol.*$`)
    66  	if !wantURL.Match(b) {
    67  		t.Errorf("no match for %s in response body", wantURL.String())
    68  	}
    69  	wantSubURL := regexp.MustCompile(`(?m)^.*subscriptionUrl\s*=\s*wsProto.*['"]\/customquery['"].*$`)
    70  	if !wantSubURL.Match(b) {
    71  		t.Errorf("no match for %s in response body", wantSubURL.String())
    72  	}
    73  }
    74  
    75  func TestHandler_Integrity(t *testing.T) {
    76  	testResourceIntegrity(t, Handler)
    77  }