diff --git a/samples/zephyr/mcutests/mcutests.go b/samples/zephyr/mcutests/mcutests.go
new file mode 100644
index 0000000..9485595
--- /dev/null
+++ b/samples/zephyr/mcutests/mcutests.go
@@ -0,0 +1,255 @@
+// Package mcutests
+package mcutests // github.com/JuulLabs-OSS/mcuboot/samples/zephyr/mcutests
+
+// The main driver of this consists of a series of tests.  Each test
+// then contains a series of commands and expect results.
+var Tests = []struct {
+	Name  string
+	Tests []OneTest
+}{
+	{
+		Name: "Good RSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-good-rsa"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello2",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "Good ECDSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-good-ecdsa"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello2",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "Overwrite",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-overwrite"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello2",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello2",
+			},
+		},
+	},
+	{
+		Name: "Bad RSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-bad-rsa-upgrade"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "Bad RSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-bad-ecdsa-upgrade"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "No bootcheck",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-no-bootcheck"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "Wrong RSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-wrong-rsa"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+	{
+		Name: "Wrong ECDSA",
+		Tests: []OneTest{
+			{
+				Commands: [][]string{
+					{"make", "test-wrong-ecdsa"},
+					{"make", "flash_boot"},
+				},
+				Expect: "Unable to find bootable image",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello1"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"make", "flash_hello2"},
+				},
+				Expect: "Hello World from hello1",
+			},
+			{
+				Commands: [][]string{
+					{"pyocd", "commander", "-c", "reset"},
+				},
+				Expect: "Hello World from hello1",
+			},
+		},
+	},
+}
+
+type OneTest struct {
+	Commands [][]string
+	Expect   string
+}
diff --git a/samples/zephyr/run-tests.go b/samples/zephyr/run-tests.go
index 88160b4..9b57664 100644
--- a/samples/zephyr/run-tests.go
+++ b/samples/zephyr/run-tests.go
@@ -23,6 +23,8 @@
 	"os/exec"
 	"strings"
 	"time"
+
+	"github.com/JuulLabs-OSS/mcuboot/samples/zephyr/mcutests"
 )
 
 // logIn gives the pathname of the log output from the Zephyr device.
@@ -39,259 +41,6 @@
 // Output from this test run is written to the given log file.
 var logOut = flag.String("logout", "tests.log", "Log file to write to")
 
-// The main driver of this consists of a series of tests.  Each test
-// then contains a series of commands and expect results.
-var tests = []struct {
-	name  string
-	tests []oneTest
-}{
-	{
-		name: "Good RSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-good-rsa"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello2",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "Good ECDSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-good-ecdsa"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello2",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "Overwrite",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-overwrite"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello2",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello2",
-			},
-		},
-	},
-	{
-		name: "Bad RSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-bad-rsa-upgrade"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "Bad RSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-bad-ecdsa-upgrade"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "No bootcheck",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-no-bootcheck"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "Wrong RSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-wrong-rsa"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-	{
-		name: "Wrong ECDSA",
-		tests: []oneTest{
-			{
-				commands: [][]string{
-					{"make", "test-wrong-ecdsa"},
-					{"make", "flash_boot"},
-				},
-				expect: "Unable to find bootable image",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello1"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"make", "flash_hello2"},
-				},
-				expect: "Hello World from hello1",
-			},
-			{
-				commands: [][]string{
-					{"pyocd", "commander", "-c", "reset"},
-				},
-				expect: "Hello World from hello1",
-			},
-		},
-	},
-}
-
-type oneTest struct {
-	commands [][]string
-	expect   string
-}
-
 func main() {
 	err := run()
 	if err != nil {
@@ -314,13 +63,13 @@
 	lg := bufio.NewWriter(logFile)
 	defer lg.Flush()
 
-	for _, group := range tests {
-		fmt.Printf("Running %q\n", group.name)
+	for _, group := range mcutests.Tests {
+		fmt.Printf("Running %q\n", group.Name)
 		fmt.Fprintf(lg, "-------------------------------------\n")
-		fmt.Fprintf(lg, "---- Running %q\n", group.name)
+		fmt.Fprintf(lg, "---- Running %q\n", group.Name)
 
-		for _, test := range group.tests {
-			for _, cmd := range test.commands {
+		for _, test := range group.Tests {
+			for _, cmd := range test.Commands {
 				fmt.Printf("    %s\n", cmd)
 				fmt.Fprintf(lg, "---- Run: %s\n", cmd)
 				err = runCommand(cmd, lg)
@@ -329,7 +78,7 @@
 				}
 			}
 
-			err = expect(lg, lines, test.expect)
+			err = expect(lg, lines, test.Expect)
 			if err != nil {
 				return err
 			}