mirror of https://github.com/docker/docs.git
129 lines
3.2 KiB
Go
129 lines
3.2 KiB
Go
package utils
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import (
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"os"
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"testing"
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)
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func TestCheckLocalDns(t *testing.T) {
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for resolv, result := range map[string]bool{`# Dynamic
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nameserver 10.0.2.3
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search docker.com`: false,
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`# Dynamic
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#nameserver 127.0.0.1
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nameserver 10.0.2.3
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search docker.com`: false,
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`# Dynamic
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nameserver 10.0.2.3 #not used 127.0.1.1
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search docker.com`: false,
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`# Dynamic
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#nameserver 10.0.2.3
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#search docker.com`: true,
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`# Dynamic
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nameserver 127.0.0.1
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search docker.com`: true,
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`# Dynamic
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nameserver 127.0.1.1
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search docker.com`: true,
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`# Dynamic
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`: true,
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``: true,
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} {
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if CheckLocalDns([]byte(resolv)) != result {
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t.Fatalf("Wrong local dns detection: {%s} should be %v", resolv, result)
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}
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}
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}
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func TestReplaceAndAppendEnvVars(t *testing.T) {
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var (
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d = []string{"HOME=/"}
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o = []string{"HOME=/root", "TERM=xterm"}
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)
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env := ReplaceOrAppendEnvValues(d, o)
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if len(env) != 2 {
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t.Fatalf("expected len of 2 got %d", len(env))
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}
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if env[0] != "HOME=/root" {
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t.Fatalf("expected HOME=/root got '%s'", env[0])
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}
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if env[1] != "TERM=xterm" {
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t.Fatalf("expected TERM=xterm got '%s'", env[1])
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}
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}
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// Reading a symlink to a directory must return the directory
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func TestReadSymlinkedDirectoryExistingDirectory(t *testing.T) {
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var err error
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if err = os.Mkdir("/tmp/testReadSymlinkToExistingDirectory", 0777); err != nil {
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t.Errorf("failed to create directory: %s", err)
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}
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if err = os.Symlink("/tmp/testReadSymlinkToExistingDirectory", "/tmp/dirLinkTest"); err != nil {
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t.Errorf("failed to create symlink: %s", err)
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}
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var path string
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if path, err = ReadSymlinkedDirectory("/tmp/dirLinkTest"); err != nil {
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t.Fatalf("failed to read symlink to directory: %s", err)
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}
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if path != "/tmp/testReadSymlinkToExistingDirectory" {
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t.Fatalf("symlink returned unexpected directory: %s", path)
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}
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if err = os.Remove("/tmp/testReadSymlinkToExistingDirectory"); err != nil {
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t.Errorf("failed to remove temporary directory: %s", err)
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}
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if err = os.Remove("/tmp/dirLinkTest"); err != nil {
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t.Errorf("failed to remove symlink: %s", err)
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}
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}
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// Reading a non-existing symlink must fail
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func TestReadSymlinkedDirectoryNonExistingSymlink(t *testing.T) {
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var path string
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var err error
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if path, err = ReadSymlinkedDirectory("/tmp/test/foo/Non/ExistingPath"); err == nil {
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t.Fatalf("error expected for non-existing symlink")
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}
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if path != "" {
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t.Fatalf("expected empty path, but '%s' was returned", path)
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}
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}
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// Reading a symlink to a file must fail
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func TestReadSymlinkedDirectoryToFile(t *testing.T) {
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var err error
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var file *os.File
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if file, err = os.Create("/tmp/testReadSymlinkToFile"); err != nil {
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t.Fatalf("failed to create file: %s", err)
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}
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file.Close()
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if err = os.Symlink("/tmp/testReadSymlinkToFile", "/tmp/fileLinkTest"); err != nil {
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t.Errorf("failed to create symlink: %s", err)
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}
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var path string
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if path, err = ReadSymlinkedDirectory("/tmp/fileLinkTest"); err == nil {
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t.Fatalf("ReadSymlinkedDirectory on a symlink to a file should've failed")
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}
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if path != "" {
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t.Fatalf("path should've been empty: %s", path)
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}
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if err = os.Remove("/tmp/testReadSymlinkToFile"); err != nil {
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t.Errorf("failed to remove file: %s", err)
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}
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if err = os.Remove("/tmp/fileLinkTest"); err != nil {
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t.Errorf("failed to remove symlink: %s", err)
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}
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}
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