github.com/snowblossomcoin/go-ethereum@v1.9.25/rpc/http_test.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package rpc
    18  
    19  import (
    20  	"net/http"
    21  	"net/http/httptest"
    22  	"strings"
    23  	"testing"
    24  )
    25  
    26  func confirmStatusCode(t *testing.T, got, want int) {
    27  	t.Helper()
    28  	if got == want {
    29  		return
    30  	}
    31  	if gotName := http.StatusText(got); len(gotName) > 0 {
    32  		if wantName := http.StatusText(want); len(wantName) > 0 {
    33  			t.Fatalf("response status code: got %d (%s), want %d (%s)", got, gotName, want, wantName)
    34  		}
    35  	}
    36  	t.Fatalf("response status code: got %d, want %d", got, want)
    37  }
    38  
    39  func confirmRequestValidationCode(t *testing.T, method, contentType, body string, expectedStatusCode int) {
    40  	t.Helper()
    41  	request := httptest.NewRequest(method, "http://url.com", strings.NewReader(body))
    42  	if len(contentType) > 0 {
    43  		request.Header.Set("Content-Type", contentType)
    44  	}
    45  	code, err := validateRequest(request)
    46  	if code == 0 {
    47  		if err != nil {
    48  			t.Errorf("validation: got error %v, expected nil", err)
    49  		}
    50  	} else if err == nil {
    51  		t.Errorf("validation: code %d: got nil, expected error", code)
    52  	}
    53  	confirmStatusCode(t, code, expectedStatusCode)
    54  }
    55  
    56  func TestHTTPErrorResponseWithDelete(t *testing.T) {
    57  	confirmRequestValidationCode(t, http.MethodDelete, contentType, "", http.StatusMethodNotAllowed)
    58  }
    59  
    60  func TestHTTPErrorResponseWithPut(t *testing.T) {
    61  	confirmRequestValidationCode(t, http.MethodPut, contentType, "", http.StatusMethodNotAllowed)
    62  }
    63  
    64  func TestHTTPErrorResponseWithMaxContentLength(t *testing.T) {
    65  	body := make([]rune, maxRequestContentLength+1)
    66  	confirmRequestValidationCode(t,
    67  		http.MethodPost, contentType, string(body), http.StatusRequestEntityTooLarge)
    68  }
    69  
    70  func TestHTTPErrorResponseWithEmptyContentType(t *testing.T) {
    71  	confirmRequestValidationCode(t, http.MethodPost, "", "", http.StatusUnsupportedMediaType)
    72  }
    73  
    74  func TestHTTPErrorResponseWithValidRequest(t *testing.T) {
    75  	confirmRequestValidationCode(t, http.MethodPost, contentType, "", 0)
    76  }
    77  
    78  func confirmHTTPRequestYieldsStatusCode(t *testing.T, method, contentType, body string, expectedStatusCode int) {
    79  	t.Helper()
    80  	s := Server{}
    81  	ts := httptest.NewServer(&s)
    82  	defer ts.Close()
    83  
    84  	request, err := http.NewRequest(method, ts.URL, strings.NewReader(body))
    85  	if err != nil {
    86  		t.Fatalf("failed to create a valid HTTP request: %v", err)
    87  	}
    88  	if len(contentType) > 0 {
    89  		request.Header.Set("Content-Type", contentType)
    90  	}
    91  	resp, err := http.DefaultClient.Do(request)
    92  	if err != nil {
    93  		t.Fatalf("request failed: %v", err)
    94  	}
    95  	confirmStatusCode(t, resp.StatusCode, expectedStatusCode)
    96  }
    97  
    98  func TestHTTPResponseWithEmptyGet(t *testing.T) {
    99  	confirmHTTPRequestYieldsStatusCode(t, http.MethodGet, "", "", http.StatusOK)
   100  }