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moby--moby/pkg/discovery/file/file_test.go
Tibor Vass 81d2a0c389 rm-gocheck: comment out check.Suite calls
sed -E -i 's#^([^*])+?((var .*)?check\.Suite\(.*\))#\1/*\2*/#g' \
-- "integration-cli/check_test.go" "integration-cli/docker_cli_external_volume_driver_unix_test.go" "integration-cli/docker_cli_network_unix_test.go" "integration-cli/docker_hub_pull_suite_test.go" "pkg/discovery/discovery_test.go" "pkg/discovery/file/file_test.go" "pkg/discovery/kv/kv_test.go" "pkg/discovery/memory/memory_test.go" "pkg/discovery/nodes/nodes_test.go"

Signed-off-by: Tibor Vass <tibor@docker.com>
2019-09-09 21:05:58 +00:00

114 lines
3 KiB
Go

package file // import "github.com/docker/docker/pkg/discovery/file"
import (
"io/ioutil"
"os"
"testing"
"github.com/docker/docker/pkg/discovery"
"github.com/go-check/check"
)
// Hook up gocheck into the "go test" runner.
func Test(t *testing.T) { check.TestingT(t) }
type DiscoverySuite struct{}
/*check.Suite(&DiscoverySuite{})*/
func (s *DiscoverySuite) TestInitialize(c *testing.T) {
d := &Discovery{}
d.Initialize("/path/to/file", 1000, 0, nil)
assert.Equal(c, d.path, "/path/to/file")
}
func (s *DiscoverySuite) TestNew(c *testing.T) {
d, err := discovery.New("file:///path/to/file", 0, 0, nil)
assert.Assert(c, err == nil)
assert.Equal(c, d.(*Discovery).path, "/path/to/file")
}
func (s *DiscoverySuite) TestContent(c *testing.T) {
data := `
1.1.1.[1:2]:1111
2.2.2.[2:4]:2222
`
ips := parseFileContent([]byte(data))
assert.Equal(c, len(ips), 5)
assert.Equal(c, ips[0], "1.1.1.1:1111")
assert.Equal(c, ips[1], "1.1.1.2:1111")
assert.Equal(c, ips[2], "2.2.2.2:2222")
assert.Equal(c, ips[3], "2.2.2.3:2222")
assert.Equal(c, ips[4], "2.2.2.4:2222")
}
func (s *DiscoverySuite) TestRegister(c *testing.T) {
discovery := &Discovery{path: "/path/to/file"}
assert.Assert(c, discovery.Register("0.0.0.0") != nil)
}
func (s *DiscoverySuite) TestParsingContentsWithComments(c *testing.T) {
data := `
### test ###
1.1.1.1:1111 # inline comment
# 2.2.2.2:2222
### empty line with comment
3.3.3.3:3333
### test ###
`
ips := parseFileContent([]byte(data))
assert.Equal(c, len(ips), 2)
assert.Equal(c, "1.1.1.1:1111", ips[0])
assert.Equal(c, "3.3.3.3:3333", ips[1])
}
func (s *DiscoverySuite) TestWatch(c *testing.T) {
data := `
1.1.1.1:1111
2.2.2.2:2222
`
expected := discovery.Entries{
&discovery.Entry{Host: "1.1.1.1", Port: "1111"},
&discovery.Entry{Host: "2.2.2.2", Port: "2222"},
}
// Create a temporary file and remove it.
tmp, err := ioutil.TempFile(os.TempDir(), "discovery-file-test")
assert.Assert(c, err == nil)
assert.Assert(c, tmp.Close() == nil)
assert.Assert(c, os.Remove(tmp.Name()) == nil)
// Set up file discovery.
d := &Discovery{}
d.Initialize(tmp.Name(), 1000, 0, nil)
stopCh := make(chan struct{})
ch, errCh := d.Watch(stopCh)
// Make sure it fires errors since the file doesn't exist.
assert.Assert(c, <-errCh != nil)
// We have to drain the error channel otherwise Watch will get stuck.
go func() {
for range errCh {
}
}()
// Write the file and make sure we get the expected value back.
assert.Assert(c, ioutil.WriteFile(tmp.Name(), []byte(data), 0600) == nil)
assert.DeepEqual(c, <-ch, expected)
// Add a new entry and look it up.
expected = append(expected, &discovery.Entry{Host: "3.3.3.3", Port: "3333"})
f, err := os.OpenFile(tmp.Name(), os.O_APPEND|os.O_WRONLY, 0600)
assert.Assert(c, err == nil)
assert.Assert(c, f != nil)
_, err = f.WriteString("\n3.3.3.3:3333\n")
assert.Assert(c, err == nil)
f.Close()
assert.DeepEqual(c, <-ch, expected)
// Stop and make sure it closes all channels.
close(stopCh)
assert.Assert(c, <-ch == nil)
assert.Assert(c, <-errCh == nil)
}