usb_prl: new unit test with mocks

Now that the old usb_prl unit test is under usb_prl_old, add a new
unit test for usb_prl with mocks for the various subsystems that it
will use.

BUG=b:158608129
BRANCH=None
TEST=`TEST_LIST_HOST="usb_prl_old usb_prl" make runhosttests`

Signed-off-by: Paul Fagerburg <pfagerburg@google.com>
Change-Id: Ie1bf9a4494cd933473caa4ceb594eddd97c277c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2252662
Tested-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Commit-Queue: Paul Fagerburg <pfagerburg@chromium.org>

5 files changed, 80 insertions, 0 deletions

diff --git a/test/build.mk b/test/build.mk
index 053896aca9..e889ea6400 100644
--- a/test/build.mk
+++ b/test/build.mk
@@ -87,6 +87,7 @@ test-list-host += usb_typec_vpd
 test-list-host += usb_typec_ctvpd
 test-list-host += usb_typec_drp_acc_trysrc
 test-list-host += usb_prl_old
+test-list-host += usb_prl
 test-list-host += usb_pe_drp
 test-list-host += utils
 test-list-host += utils_str
@@ -194,6 +195,7 @@ usb_typec_ctvpd-y=usb_typec_ctvpd.o vpd_api.o usb_sm_checks.o fake_usbc.o
 usb_typec_drp_acc_trysrc-y=usb_typec_drp_acc_trysrc.o vpd_api.o \
 	usb_sm_checks.o
 usb_prl_old-y=usb_prl_old.o usb_sm_checks.o fake_usbc.o
+usb_prl-y=usb_prl.o usb_sm_checks.o
 usb_pe_drp-y=usb_pe_drp.o usb_sm_checks.o \
 	fake_battery.o fake_prl.o fake_usbc.o
 utils-y=utils.o
diff --git a/test/test_config.h b/test/test_config.h
index 5bc5f48316..8fcadd044d 100644
--- a/test/test_config.h
+++ b/test/test_config.h
@@ -327,6 +327,17 @@ int ncp15wb_calculate_temp(uint16_t adc);
 #define CONFIG_SW_CRC
 #endif
 
+#if defined(TEST_USB_PRL)
+#define CONFIG_USB_PD_PORT_MAX_COUNT 1
+#define CONFIG_USB_PD_REV30
+#define CONFIG_USB_PD_TCPMV2
+#undef CONFIG_USB_PE_SM
+#undef CONFIG_USB_TYPEC_SM
+#undef CONFIG_USB_PD_HOST_CMD
+#define CONFIG_USB_PRL_SM
+#define CONFIG_USB_POWER_DELIVERY
+#endif
+
 #if defined(TEST_USB_PE_DRP)
 #define CONFIG_TEST_USB_PE_SM
 #define CONFIG_USB_PD_PORT_MAX_COUNT 1
diff --git a/test/usb_prl.c b/test/usb_prl.c
new file mode 100644
index 0000000000..702aa8ec64
--- /dev/null
+++ b/test/usb_prl.c
@@ -0,0 +1,46 @@
+/* Copyright 2020 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Test USB Protocol Layer module.
+ */
+#include "common.h"
+#include "task.h"
+#include "tcpm.h"
+#include "test_util.h"
+#include "timer.h"
+#include "usb_emsg.h"
+#include "usb_pd_test_util.h"
+#include "usb_pd.h"
+#include "usb_pe_sm.h"
+#include "usb_prl_sm.h"
+#include "usb_sm_checks.h"
+#include "usb_tc_sm.h"
+#include "util.h"
+#include "mock/tcpc_mock.h"
+
+#define PORT0 0
+
+/* Install Mock TCPC and MUX drivers */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.drv = &mock_tcpc_driver,
+	},
+};
+
+void before_test(void)
+{
+}
+
+void run_test(int argc, char **argv)
+{
+	/* TODO add tests here */
+
+	/* Do basic state machine sanity checks last. */
+	RUN_TEST(test_prl_no_parent_cycles);
+	RUN_TEST(test_prl_no_empty_state);
+	RUN_TEST(test_prl_all_states_named);
+
+	test_print_result();
+}
+
diff --git a/test/usb_prl.mocklist b/test/usb_prl.mocklist
new file mode 100644
index 0000000000..c89e12e78b
--- /dev/null
+++ b/test/usb_prl.mocklist
@@ -0,0 +1,11 @@
+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+ #define CONFIG_TEST_MOCK_LIST  \
+	MOCK(TCPC) \
+	MOCK(TCPM) \
+	MOCK(USB_PD) \
+	MOCK(USB_PE_SM) \
+	MOCK(USB_TC_SM)
diff --git a/test/usb_prl.tasklist b/test/usb_prl.tasklist
new file mode 100644
index 0000000000..eb41326e3e
--- /dev/null
+++ b/test/usb_prl.tasklist
@@ -0,0 +1,10 @@
+/* Copyright 2019 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/**
+ * See CONFIG_TEST_TASK_LIST in config.h for details.
+ */
+#define CONFIG_TEST_TASK_LIST \
+	TASK_TEST(PD_C0, pd_task, NULL, LARGER_TASK_STACK_SIZE)