DockerCLI/cli-plugins/manager/manager_test.go

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package manager
import (
"strings"
"testing"
"github.com/docker/cli/cli/config"
"github.com/docker/cli/cli/config/configfile"
"github.com/docker/cli/internal/test"
"gotest.tools/assert"
"gotest.tools/fs"
)
func TestListPluginCandidates(t *testing.T) {
// Populate a selection of directories with various shadowed and bogus/obscure plugin candidates.
// For the purposes of this test no contents is required and permissions are irrelevant.
dir := fs.NewDir(t, t.Name(),
fs.WithDir(
"plugins1",
fs.WithFile("docker-plugin1", ""), // This appears in each directory
fs.WithFile("not-a-plugin", ""), // Should be ignored
fs.WithFile("docker-symlinked1", ""), // This and ...
fs.WithSymlink("docker-symlinked2", "docker-symlinked1"), // ... this should both appear
fs.WithDir("ignored1"), // A directory should be ignored
),
fs.WithDir(
"plugins2",
fs.WithFile("docker-plugin1", ""),
fs.WithFile("also-not-a-plugin", ""),
fs.WithFile("docker-hardlink1", ""), // This and ...
fs.WithHardlink("docker-hardlink2", "docker-hardlink1"), // ... this should both appear
fs.WithDir("ignored2"),
),
fs.WithDir(
"plugins3-target", // Will be referenced as a symlink from below
fs.WithFile("docker-plugin1", ""),
fs.WithDir("ignored3"),
fs.WithSymlink("docker-brokensymlink", "broken"), // A broken symlink is still a candidate (but would fail tests later)
fs.WithFile("non-plugin-symlinked", ""), // This shouldn't appear, but ...
fs.WithSymlink("docker-symlinked", "non-plugin-symlinked"), // ... this link to it should.
),
fs.WithSymlink("plugins3", "plugins3-target"),
fs.WithFile("/plugins4", ""),
fs.WithSymlink("plugins5", "plugins5-nonexistent-target"),
)
defer dir.Remove()
var dirs []string
for _, d := range []string{"plugins1", "nonexistent", "plugins2", "plugins3", "plugins4", "plugins5"} {
dirs = append(dirs, dir.Join(d))
}
candidates, err := listPluginCandidates(dirs)
assert.NilError(t, err)
exp := map[string][]string{
"plugin1": {
dir.Join("plugins1", "docker-plugin1"),
dir.Join("plugins2", "docker-plugin1"),
dir.Join("plugins3", "docker-plugin1"),
},
"symlinked1": {
dir.Join("plugins1", "docker-symlinked1"),
},
"symlinked2": {
dir.Join("plugins1", "docker-symlinked2"),
},
"hardlink1": {
dir.Join("plugins2", "docker-hardlink1"),
},
"hardlink2": {
dir.Join("plugins2", "docker-hardlink2"),
},
"brokensymlink": {
dir.Join("plugins3", "docker-brokensymlink"),
},
"symlinked": {
dir.Join("plugins3", "docker-symlinked"),
},
}
assert.DeepEqual(t, candidates, exp)
}
func TestErrPluginNotFound(t *testing.T) {
var err error = errPluginNotFound("test")
err.(errPluginNotFound).NotFound()
assert.Error(t, err, "Error: No such CLI plugin: test")
assert.Assert(t, IsNotFound(err))
assert.Assert(t, !IsNotFound(nil))
}
func TestGetPluginDirs(t *testing.T) {
cli := test.NewFakeCli(nil)
expected := []string{config.Path("cli-plugins")}
expected = append(expected, defaultSystemPluginDirs...)
assert.Equal(t, strings.Join(expected, ":"), strings.Join(getPluginDirs(cli), ":"))
extras := []string{
"foo", "bar", "baz",
}
expected = append(extras, expected...)
cli.SetConfigFile(&configfile.ConfigFile{
CLIPluginsExtraDirs: extras,
})
assert.DeepEqual(t, expected, getPluginDirs(cli))
}