test: add basic integration tests

Signed-off-by: Justin Chadwell <me@jedevc.com>

tests/integration_test.go

@@ -0,0 +1,45 @@
+package tests
+
+import (
+	"os"
+	"testing"
+
+	"github.com/distribution/distribution/v3/reference"
+	"github.com/docker/buildx/tests/workers"
+	"github.com/moby/buildkit/util/testutil/integration"
+)
+
+func init() {
+	if integration.IsTestDockerd() {
+		workers.InitDockerWorker()
+		workers.InitDockerContainerWorker()
+	} else {
+		workers.InitRemoteWorker()
+	}
+}
+
+func TestIntegration(t *testing.T) {
+	var tests []func(t *testing.T, sb integration.Sandbox)
+	tests = append(tests, buildTests...)
+	tests = append(tests, inspectTests...)
+	tests = append(tests, lsTests...)
+	testIntegration(t, tests...)
+}
+
+func testIntegration(t *testing.T, funcs ...func(t *testing.T, sb integration.Sandbox)) {
+	mirroredImages := integration.OfficialImages("busybox:latest", "alpine:latest")
+	buildkitImage := "docker.io/moby/buildkit:buildx-stable-1"
+	if integration.IsTestDockerd() {
+		if img, ok := os.LookupEnv("TEST_BUILDKIT_IMAGE"); ok {
+			ref, err := reference.ParseNormalizedNamed(img)
+			if err == nil {
+				buildkitImage = ref.String()
+			}
+		}
+	}
+	mirroredImages["moby/buildkit:buildx-stable-1"] = buildkitImage
+	mirrors := integration.WithMirroredImages(mirroredImages)
+
+	tests := integration.TestFuncs(funcs...)
+	integration.Run(t, tests, mirrors)
+}