protocan-boot: support single-slot targets

c/protocan-boot/tests/test_pcan_boot.c

@@ -255,6 +255,44 @@ static void test_rejects_wrong_session_and_compatibility(void)
     assert(boot.state == PCAN_BOOT_STATE_FAILED);
 }
 
+static void test_single_slot_update(void)
+{
+    static const uint8_t image[8] = { 1U, 2U, 3U, 4U, 5U, 6U, 7U, 8U };
+    pcan_boot_t boot;
+    fake_t fake;
+    pcan_boot_config_t config;
+    pcan_boot_port_t port;
+
+    (void)memset(&fake, 0, sizeof(fake));
+    (void)memset(&config, 0, sizeof(config));
+    (void)memset(&port, 0, sizeof(port));
+    fake.pending_slot = PCAN_BOOT_SLOT_NONE;
+    fake.authorized = true;
+    fake.verified = true;
+    config.device_type = 3U;
+    config.device_id = 5U;
+    config.product_type = 0x1234U;
+    config.hardware_revision = 2U;
+    config.slot_count = 1U;
+    config.max_image_size = sizeof(fake.flash[0]);
+    config.ack_window = 16U;
+    port.send = fake_send;
+    port.erase_slot = fake_erase;
+    port.write_slot = fake_write;
+    port.authorize = fake_authorize;
+    port.verify_image = fake_verify;
+    port.reboot = fake_reboot;
+    assert(pcan_boot_init(&boot, &config, &port, &fake));
+    begin_update(&boot, image, sizeof(image));
+    assert(boot.target_slot == 0U);
+    assert(command(&boot, 7U, PCAN_BOOT_CMD_ERASE, NULL, 0U));
+    assert(pcan_boot_process(&boot, request_id(PCAN_BOOT_MSG_DATA_A, 0U), image, 8U));
+    assert(command(&boot, 7U, PCAN_BOOT_CMD_VERIFY, NULL, 0U));
+    assert(command(&boot, 7U, PCAN_BOOT_CMD_COMMIT, NULL, 0U));
+    assert(fake.pending_slot == PCAN_BOOT_SLOT_NONE);
+    assert(memcmp(fake.flash[0], image, sizeof(image)) == 0);
+}
+
 int main(void)
 {
     test_id_layout();
@@ -262,6 +300,7 @@ int main(void)
     test_complete_update();
     test_rejects_wrong_address_and_sequence();
     test_rejects_wrong_session_and_compatibility();
+    test_single_slot_update();
     puts("pcan_boot tests: OK");
     return 0;
 }