The new `go fmt` adds `//go:build` lines (https://golang.org/doc/go1.17#tools). Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
		
			
				
	
	
		
			74 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
//go:build linux
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// +build linux
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/*
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   Copyright The containerd Authors.
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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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       http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package process
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import (
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	"context"
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	"io/ioutil"
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	"net/url"
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	"testing"
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	"github.com/containerd/containerd/namespaces"
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)
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func TestNewBinaryIO(t *testing.T) {
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	ctx := namespaces.WithNamespace(context.Background(), "test")
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	uri, _ := url.Parse("binary:///bin/echo?test")
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	before := descriptorCount(t)
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	io, err := NewBinaryIO(ctx, "1", uri)
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	if err != nil {
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		t.Fatal(err)
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	}
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	err = io.Close()
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	if err != nil {
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		t.Fatal(err)
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	}
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	after := descriptorCount(t)
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	if before != after-1 { // one descriptor must be closed from shim logger side
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		t.Fatalf("some descriptors weren't closed (%d != %d)", before, after)
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	}
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}
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func TestNewBinaryIOCleanup(t *testing.T) {
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	ctx := namespaces.WithNamespace(context.Background(), "test")
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	uri, _ := url.Parse("binary:///not/existing")
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	before := descriptorCount(t)
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	_, err := NewBinaryIO(ctx, "2", uri)
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	if err == nil {
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		t.Fatal("error expected for invalid binary")
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	}
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	after := descriptorCount(t)
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	if before != after {
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		t.Fatalf("some descriptors weren't closed (%d != %d)", before, after)
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	}
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}
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func descriptorCount(t *testing.T) int {
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	t.Helper()
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	files, _ := ioutil.ReadDir("/proc/self/fd")
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	return len(files)
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}
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