87 lines
1.9 KiB
Go
87 lines
1.9 KiB
Go
package testutil
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import (
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"fmt"
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"io"
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"net"
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"strings"
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"testing"
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"time"
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"github.com/hashicorp/go-msgpack/codec"
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cstructs "github.com/hashicorp/nomad/client/structs"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/stretchr/testify/require"
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)
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// StreamingRPC may be satisfied by client.Client or server.Server.
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type StreamingRPC interface {
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StreamingRpcHandler(method string) (structs.StreamingRpcHandler, error)
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}
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// StreamingRPCErrorTestCase is a test case to be passed to the
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// assertStreamingRPCError func.
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type StreamingRPCErrorTestCase struct {
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Name string
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RPC string
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Req interface{}
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Assert func(error) bool
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}
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// AssertStreamingRPCError asserts a streaming RPC's error matches the given
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// assertion in the test case.
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func AssertStreamingRPCError(t *testing.T, s StreamingRPC, tc StreamingRPCErrorTestCase) {
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handler, err := s.StreamingRpcHandler(tc.RPC)
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require.NoError(t, err)
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// Create a pipe
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p1, p2 := net.Pipe()
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defer p1.Close()
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defer p2.Close()
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errCh := make(chan error, 1)
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streamMsg := make(chan *cstructs.StreamErrWrapper, 1)
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// Start the handler
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go handler(p2)
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// Start the decoder
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go func() {
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decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
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for {
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var msg cstructs.StreamErrWrapper
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if err := decoder.Decode(&msg); err != nil {
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if err == io.EOF || strings.Contains(err.Error(), "closed") {
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return
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}
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errCh <- fmt.Errorf("error decoding: %v", err)
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}
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streamMsg <- &msg
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}
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}()
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// Send the request
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encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
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require.NoError(t, encoder.Encode(tc.Req))
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timeout := time.After(5 * time.Second)
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for {
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select {
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case <-timeout:
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t.Fatal("timeout")
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case err := <-errCh:
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require.NoError(t, err)
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case msg := <-streamMsg:
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// Convert RpcError to error
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var err error
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if msg.Error != nil {
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err = msg.Error
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}
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require.True(t, tc.Assert(err), "(%T) %s", msg.Error, msg.Error)
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return
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}
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}
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}
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