test: add basic integration tests

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

tests/inspect.go

@@ -0,0 +1,38 @@
+package tests
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/moby/buildkit/util/testutil/integration"
+	"github.com/stretchr/testify/require"
+)
+
+func inspectCmd(sb integration.Sandbox, args ...string) (string, error) {
+	args = append([]string{"inspect"}, args...)
+	cmd := buildxCmd(sb, args...)
+	out, err := cmd.CombinedOutput()
+	return string(out), err
+}
+
+var inspectTests = []func(t *testing.T, sb integration.Sandbox){
+	testInspect,
+}
+
+func testInspect(t *testing.T, sb integration.Sandbox) {
+	out, err := inspectCmd(sb)
+	require.NoError(t, err, string(out))
+
+	var name string
+	var driver string
+	for _, line := range strings.Split(out, "\n") {
+		if v, ok := strings.CutPrefix(line, "Name:"); ok && name == "" {
+			name = strings.TrimSpace(v)
+		}
+		if v, ok := strings.CutPrefix(line, "Driver:"); ok && driver == "" {
+			driver = strings.TrimSpace(v)
+		}
+	}
+	require.Equal(t, sb.Address(), name)
+	require.Equal(t, sb.Name(), driver)
+}