diff --git a/samples/zephyr/test-compile.go b/samples/zephyr/test-compile.go
new file mode 100644
index 0000000..fba613f
--- /dev/null
+++ b/samples/zephyr/test-compile.go
@@ -0,0 +1,156 @@
+// +build ignore
+//
+// Build all of the tests.
+//
+// Run as:
+//
+//     go run test-compile.go -out name.tar
+
+package main
+
+import (
+	"archive/zip"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"path"
+
+	"github.com/JuulLabs-OSS/mcuboot/samples/zephyr/mcutests"
+)
+
+var outFile = flag.String("out", "test-images.zip", "Name of zip file to put built tests into")
+
+func main() {
+	err := run()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func run() error {
+	flag.Parse()
+
+	zipper, err := NewBuilds()
+	if err != nil {
+		return err
+	}
+	defer zipper.Close()
+
+	for _, group := range mcutests.Tests {
+		fmt.Printf("Compiling %q\n", group.ShortName)
+		c := exec.Command("make",
+			fmt.Sprintf("test-%s", group.ShortName))
+		// TODO: Should capture the output and show it if
+		// there is an error.
+		err = c.Run()
+		if err != nil {
+			return err
+		}
+
+		err = zipper.Capture(group.ShortName)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// A Builds create a zipfile of the contents of various builds.  The
+// names will be constructed.
+type Builds struct {
+	// The file being written to.
+	file *os.File
+
+	// The zip writer writing the data.
+	zip *zip.Writer
+}
+
+func NewBuilds() (*Builds, error) {
+	name := *outFile
+	file, err := os.OpenFile(name, os.O_CREATE|os.O_EXCL|os.O_WRONLY, 0644)
+	if err != nil {
+		return nil, err
+	}
+
+	z := zip.NewWriter(file)
+
+	return &Builds{
+		file: file,
+		zip:  z,
+	}, nil
+}
+
+func (b *Builds) Close() error {
+	return b.zip.Close()
+}
+
+func (b *Builds) Capture(testName string) error {
+	// Collect stat information from the test directory, which
+	// should be close enough to make the zip file meaningful.
+	info, err := os.Stat(".")
+	if err != nil {
+		return err
+	}
+
+	header, err := zip.FileInfoHeader(info)
+	if err != nil {
+		return err
+	}
+
+	header.Name = testName + "/"
+
+	_, err = b.zip.CreateHeader(header)
+	if err != nil {
+		return err
+	}
+
+	for _, name := range []string{
+		"mcuboot.bin",
+		"signed-hello1.bin",
+		"signed-hello2.bin",
+	} {
+		err = b.add(testName, name, name)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (b *Builds) add(baseName, zipName, fileName string) error {
+	inp, err := os.Open(fileName)
+	if err != nil {
+		return err
+	}
+	defer inp.Close()
+
+	info, err := inp.Stat()
+	if err != nil {
+		return err
+	}
+
+	header, err := zip.FileInfoHeader(info)
+	if err != nil {
+		return err
+	}
+
+	header.Name = path.Join(baseName, zipName)
+	header.Method = zip.Deflate
+
+	wr, err := b.zip.CreateHeader(header)
+	if err != nil {
+		return err
+	}
+
+	_, err = io.Copy(wr, inp)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}