client/options_test.go

package client

import (
	"runtime"
	"testing"
	"time"

	"github.com/docker/docker/api"
	"gotest.tools/v3/assert"
	is "gotest.tools/v3/assert/cmp"
)

func TestOptionWithHostFromEnv(t *testing.T) {
	c, err := NewClientWithOpts(WithHostFromEnv())
	assert.NilError(t, err)
	assert.Check(t, c.client != nil)
	assert.Check(t, is.Equal(c.basePath, ""))
	if runtime.GOOS == "windows" {
		assert.Check(t, is.Equal(c.host, "npipe:////./pipe/docker_engine"))
		assert.Check(t, is.Equal(c.proto, "npipe"))
		assert.Check(t, is.Equal(c.addr, "//./pipe/docker_engine"))
	} else {
		assert.Check(t, is.Equal(c.host, "unix:///var/run/docker.sock"))
		assert.Check(t, is.Equal(c.proto, "unix"))
		assert.Check(t, is.Equal(c.addr, "/var/run/docker.sock"))
	}

	t.Setenv("DOCKER_HOST", "tcp://foo.example.com:2376/test/")

	c, err = NewClientWithOpts(WithHostFromEnv())
	assert.NilError(t, err)
	assert.Check(t, c.client != nil)
	assert.Check(t, is.Equal(c.basePath, "/test/"))
	assert.Check(t, is.Equal(c.host, "tcp://foo.example.com:2376/test/"))
	assert.Check(t, is.Equal(c.proto, "tcp"))
	assert.Check(t, is.Equal(c.addr, "foo.example.com:2376"))
}

func TestOptionWithTimeout(t *testing.T) {
	timeout := 10 * time.Second
	c, err := NewClientWithOpts(WithTimeout(timeout))
	assert.NilError(t, err)
	assert.Check(t, c.client != nil)
	assert.Equal(t, c.client.Timeout, timeout)
}

func TestOptionWithVersionFromEnv(t *testing.T) {
	c, err := NewClientWithOpts(WithVersionFromEnv())
	assert.NilError(t, err)
	assert.Check(t, c.client != nil)
	assert.Equal(t, c.version, api.DefaultVersion)
	assert.Equal(t, c.manualOverride, false)

	t.Setenv("DOCKER_API_VERSION", "2.9999")

	c, err = NewClientWithOpts(WithVersionFromEnv())
	assert.NilError(t, err)
	assert.Check(t, c.client != nil)
	assert.Equal(t, c.version, "2.9999")
	assert.Equal(t, c.manualOverride, true)
}