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99 lines
3.2 KiB
99 lines
3.2 KiB
package rpcserver_test
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import (
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"bytes"
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"encoding/json"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/go-amino"
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rs "github.com/tendermint/tendermint/rpc/lib/server"
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types "github.com/tendermint/tendermint/rpc/lib/types"
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"github.com/tendermint/tmlibs/log"
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)
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func testMux() *http.ServeMux {
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funcMap := map[string]*rs.RPCFunc{
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"c": rs.NewRPCFunc(func(s string, i int) (string, error) { return "foo", nil }, "s,i"),
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}
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cdc := amino.NewCodec()
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mux := http.NewServeMux()
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buf := new(bytes.Buffer)
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logger := log.NewTMLogger(buf)
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rs.RegisterRPCFuncs(mux, funcMap, cdc, logger)
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return mux
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}
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func statusOK(code int) bool { return code >= 200 && code <= 299 }
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// Ensure that nefarious/unintended inputs to `params`
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// do not crash our RPC handlers.
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// See Issue https://github.com/tendermint/tendermint/issues/708.
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func TestRPCParams(t *testing.T) {
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mux := testMux()
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tests := []struct {
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payload string
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wantErr string
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}{
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// bad
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{`{"jsonrpc": "2.0", "id": "0"}`, "Method not found"},
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{`{"jsonrpc": "2.0", "method": "y", "id": "0"}`, "Method not found"},
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{`{"method": "c", "id": "0", "params": a}`, "invalid character"},
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{`{"method": "c", "id": "0", "params": ["a"]}`, "got 1"},
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{`{"method": "c", "id": "0", "params": ["a", "b"]}`, "of type int"},
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{`{"method": "c", "id": "0", "params": [1, 1]}`, "of type string"},
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// good
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{`{"jsonrpc": "2.0", "method": "c", "id": "0", "params": null}`, ""},
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{`{"method": "c", "id": "0", "params": {}}`, ""},
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{`{"method": "c", "id": "0", "params": ["a", 10]}`, ""},
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}
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for i, tt := range tests {
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req, _ := http.NewRequest("POST", "http://localhost/", strings.NewReader(tt.payload))
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rec := httptest.NewRecorder()
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mux.ServeHTTP(rec, req)
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res := rec.Result()
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// Always expecting back a JSONRPCResponse
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assert.True(t, statusOK(res.StatusCode), "#%d: should always return 2XX", i)
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blob, err := ioutil.ReadAll(res.Body)
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if err != nil {
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t.Errorf("#%d: err reading body: %v", i, err)
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continue
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}
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recv := new(types.RPCResponse)
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assert.Nil(t, json.Unmarshal(blob, recv), "#%d: expecting successful parsing of an RPCResponse:\nblob: %s", i, blob)
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assert.NotEqual(t, recv, new(types.RPCResponse), "#%d: not expecting a blank RPCResponse", i)
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if tt.wantErr == "" {
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assert.Nil(t, recv.Error, "#%d: not expecting an error", i)
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} else {
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assert.True(t, recv.Error.Code < 0, "#%d: not expecting a positive JSONRPC code", i)
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// The wanted error is either in the message or the data
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assert.Contains(t, recv.Error.Message+recv.Error.Data, tt.wantErr, "#%d: expected substring", i)
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}
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}
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}
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func TestRPCNotification(t *testing.T) {
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mux := testMux()
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body := strings.NewReader(`{"jsonrpc": "2.0"}`)
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req, _ := http.NewRequest("POST", "http://localhost/", body)
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rec := httptest.NewRecorder()
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mux.ServeHTTP(rec, req)
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res := rec.Result()
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// Always expecting back a JSONRPCResponse
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require.True(t, statusOK(res.StatusCode), "should always return 2XX")
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blob, err := ioutil.ReadAll(res.Body)
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require.Nil(t, err, "reading from the body should not give back an error")
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require.Equal(t, len(blob), 0, "a notification SHOULD NOT be responded to by the server")
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}
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