83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package activation
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import (
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"bytes"
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"io"
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"os"
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"os/exec"
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"testing"
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)
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// correctStringWritten fails the text if the correct string wasn't written
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// to the other side of the pipe.
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func correctStringWritten(t *testing.T, r *os.File, expected string) bool {
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bytes := make([]byte, len(expected))
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io.ReadAtLeast(r, bytes, len(expected))
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if string(bytes) != expected {
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t.Fatalf("Unexpected string %s", string(bytes))
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}
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return true
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}
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// TestActivation forks out a copy of activation.go example and reads back two
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// strings from the pipes that are passed in.
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func TestActivation(t *testing.T) {
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cmd := exec.Command("go", "run", "../examples/activation/activation.go")
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r1, w1, _ := os.Pipe()
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r2, w2, _ := os.Pipe()
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cmd.ExtraFiles = []*os.File{
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w1,
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w2,
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}
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cmd.Env = os.Environ()
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cmd.Env = append(cmd.Env, "LISTEN_FDS=2", "LISTEN_FDNAMES=fd1", "FIX_LISTEN_PID=1")
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err := cmd.Run()
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if err != nil {
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t.Fatalf(err.Error())
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}
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correctStringWritten(t, r1, "Hello world: fd1")
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correctStringWritten(t, r2, "Goodbye world: LISTEN_FD_4")
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}
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func TestActivationNoFix(t *testing.T) {
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cmd := exec.Command("go", "run", "../examples/activation/activation.go")
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cmd.Env = os.Environ()
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cmd.Env = append(cmd.Env, "LISTEN_FDS=2")
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out, _ := cmd.CombinedOutput()
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if !bytes.Contains(out, []byte("No files")) {
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t.Fatalf("Child didn't error out as expected")
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}
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}
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func TestActivationNoFiles(t *testing.T) {
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cmd := exec.Command("go", "run", "../examples/activation/activation.go")
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cmd.Env = os.Environ()
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cmd.Env = append(cmd.Env, "LISTEN_FDS=0", "FIX_LISTEN_PID=1")
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out, _ := cmd.CombinedOutput()
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if !bytes.Contains(out, []byte("No files")) {
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t.Fatalf("Child didn't error out as expected")
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}
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}
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