Cellular: add method to set authentication type to CellularContext

Authentication type must be able to set. It was hard coded to CHAP.
Added unit tests for CellularContext to be able to add test for new function.

Author: Teppo Järvelin

UNITTESTS/features/cellular/framework/device/cellularcontext/cellularcontexttest.cpp

@@ -0,0 +1,307 @@
+/*
+ * Copyright (c) 2018, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "gtest/gtest.h"
+#include <string.h>
+
+#include "CellularContext.h"
+#include "CellularDevice_stub.h"
+#include "ControlPlane_netif_stub.h"
+#include "myCellularDevice.h"
+
+using namespace mbed;
+
+// AStyle ignored as the definition is not clear due to preprocessor usage
+// *INDENT-OFF*
+class TestCellularContext : public testing::Test {
+protected:
+
+    void SetUp()
+    {
+        CellularDevice_stub::create_in_get_default = true;
+    }
+
+    void TearDown()
+    {
+    }
+};
+
+class testContext : public CellularContext
+{
+public:
+
+	testContext(CellularDevice *dev = NULL)
+	{
+		_device = dev;
+		_cp_netif = new ControlPlane_netif_stub();
+	}
+
+	~testContext()
+	{
+		delete _cp_netif;
+	}
+	int get_retry_count()
+	{
+		return _retry_count;
+	}
+	CellularContext::AuthenticationType get_auth_type()
+	{
+		return _authentication_type;
+	}
+	nsapi_error_t set_blocking(bool blocking)
+	{
+		_is_blocking = blocking;
+		return NSAPI_ERROR_OK;
+	}
+
+	NetworkStack *get_stack()
+	{
+		return NULL;
+	}
+
+	const char *get_ip_address()
+	{
+		return NULL;
+	}
+	virtual void attach(mbed::Callback<void(nsapi_event_t, intptr_t)> status_cb)
+	{
+		_status_cb = status_cb;
+	}
+	virtual nsapi_error_t connect()
+	{
+		return NSAPI_ERROR_OK;
+	}
+
+	virtual nsapi_error_t disconnect()
+	{
+		return NSAPI_ERROR_OK;
+	}
+
+	virtual void set_plmn(const char *plmn)
+	{
+	}
+	virtual void set_sim_pin(const char *sim_pin)
+	{
+	}
+	virtual nsapi_error_t connect(const char *sim_pin, const char *apn = 0, const char *uname = 0,
+								  const char *pwd = 0)
+	{
+		return NSAPI_ERROR_OK;
+	}
+	virtual void set_credentials(const char *apn, const char *uname = 0, const char *pwd = 0)
+	{
+	}
+	virtual const char *get_netmask()
+	{
+		return NULL;
+	}
+	virtual const char *get_gateway()
+	{
+		return NULL;
+	}
+	virtual bool is_connected()
+	{
+		return false;
+	}
+	nsapi_error_t set_device_ready()
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t set_sim_ready()
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t register_to_network()
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t attach_to_network()
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t get_rate_control(CellularContext::RateControlExceptionReports &reports,
+	                                           CellularContext::RateControlUplinkTimeUnit &time_unit, int &uplink_rate)
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t get_pdpcontext_params(pdpContextList_t &params_list)
+	{
+		return NSAPI_ERROR_OK;
+	}
+	nsapi_error_t get_apn_backoff_timer(int &backoff_timer)
+	{
+		return NSAPI_ERROR_OK;
+	}
+	void set_file_handle(FileHandle *fh)
+	{
+
+	}
+#if (DEVICE_SERIAL && DEVICE_INTERRUPTIN) || defined(DOXYGEN_ONLY)
+    virtual void set_file_handle(UARTSerial *serial, PinName dcd_pin = NC, bool active_high = false)
+    {
+
+    }
+#endif
+	ControlPlane_netif *get_cp_netif()
+	{
+		return _cp_netif;
+	}
+	void cellular_callback(nsapi_event_t ev, intptr_t ptr)
+	{
+
+	}
+	void enable_hup(bool enable)
+	{
+
+	}
+
+	void cp_data_received()
+	{
+		CellularContext::cp_data_received();
+	}
+
+	virtual void do_connect()
+	{
+	}
+
+	void set_cell_callback_data(cell_callback_data_t &cb_data)
+	{
+		_cb_data = cb_data;
+	}
+
+	void do_connect_with_retry()
+	{
+		CellularContext::do_connect_with_retry();
+	}
+};
+
+static int network_cb_count = 0;
+static void network_cb(nsapi_event_t ev, intptr_t intptr)
+{
+    network_cb_count++;
+}
+
+// *INDENT-ON*
+TEST_F(TestCellularContext, test_create_delete)
+{
+    CellularDevice_stub::create_in_get_default = false;
+    CellularContext *ctx = CellularContext::get_default_instance();
+    EXPECT_TRUE(ctx == NULL);
+
+    ctx = CellularContext::get_default_nonip_instance();
+    EXPECT_TRUE(ctx == NULL);
+
+    CellularDevice_stub::create_in_get_default = true;
+    ctx = CellularContext::get_default_instance();
+    EXPECT_TRUE(ctx != NULL);
+
+    ctx = CellularContext::get_default_nonip_instance();
+    EXPECT_TRUE(ctx != NULL);
+}
+
+TEST_F(TestCellularContext, get_device)
+{
+    CellularContext *ctx = CellularContext::get_default_instance();
+    EXPECT_TRUE(ctx != NULL);
+
+    CellularDevice *dev = ctx->get_device();
+    EXPECT_TRUE(dev != NULL);
+}
+
+TEST_F(TestCellularContext, get_cid)
+{
+    CellularContext *ctx = CellularContext::get_default_instance();
+    EXPECT_TRUE(ctx != NULL);
+
+    int cid = ctx->get_cid();
+    ASSERT_EQ(cid,  -1);
+}
+
+TEST_F(TestCellularContext, set_authentication_type)
+{
+    testContext *ctx = new testContext();
+    EXPECT_TRUE(ctx != NULL);
+
+    ASSERT_EQ(ctx->get_auth_type(), CellularContext::CHAP);
+    ctx->set_authentication_type(CellularContext::PAP);
+    ASSERT_EQ(ctx->get_auth_type(), CellularContext::PAP);
+
+    delete ctx;
+}
+
+TEST_F(TestCellularContext, cp_data_received)
+{
+    testContext *ctx = new testContext();
+    EXPECT_TRUE(ctx != NULL);
+
+    ControlPlane_netif_stub *netif = (ControlPlane_netif_stub *)ctx->get_cp_netif();
+    EXPECT_TRUE(!netif->cp_data_received_called);
+    ctx->cp_data_received();
+    EXPECT_TRUE(netif->cp_data_received_called);
+
+    delete ctx;
+}
+
+TEST_F(TestCellularContext, do_connect_with_retry)
+{
+    testContext *ctx = new testContext();
+    EXPECT_TRUE(ctx != NULL);
+    ctx->attach(network_cb);
+
+    cell_callback_data_t cb_data;
+    cb_data.final_try = true;
+    ctx->set_cell_callback_data(cb_data);
+    ctx->do_connect_with_retry();
+    ASSERT_EQ(network_cb_count, 0);
+
+    cb_data.error = NSAPI_ERROR_OK;
+    cb_data.final_try = false;
+    ctx->set_cell_callback_data(cb_data);
+    ctx->do_connect_with_retry();
+
+    CellularDevice_stub::retry_array_length = 2;
+    cb_data.error = NSAPI_ERROR_DEVICE_ERROR;
+    cb_data.final_try = false;
+    ctx->set_cell_callback_data(cb_data);
+    ctx->do_connect_with_retry();
+    ASSERT_EQ(ctx->get_retry_count(), 2);
+
+    delete ctx;
+}
+
+TEST_F(TestCellularContext, do_connect_with_retry_async)
+{
+    myCellularDevice *dev = new myCellularDevice(0);
+    testContext *ctx = new testContext(dev);
+    EXPECT_TRUE(ctx != NULL);
+    ctx->attach(network_cb);
+    ASSERT_EQ(NSAPI_ERROR_OK, ctx->set_blocking(false));
+
+    cell_callback_data_t cb_data;
+    CellularDevice_stub::retry_array_length = 2;
+    cb_data.error = NSAPI_ERROR_DEVICE_ERROR;
+    cb_data.final_try = false;
+    ctx->set_cell_callback_data(cb_data);
+    ctx->do_connect_with_retry();
+    ASSERT_EQ(ctx->get_retry_count(), 1);
+
+    delete ctx;
+    delete dev;
+}
+
+
+
+

UNITTESTS/features/cellular/framework/device/cellularcontext/unittest.cmake

@@ -0,0 +1,42 @@
+
+####################
+# UNIT TESTS
+####################
+
+# Add test specific include paths
+set(unittest-includes ${unittest-includes}
+    /features/cellular/framework/device/cellulardevice
+  ../features/cellular/framework/device
+  ../features/cellular/framework/common
+  ../features/netsocket/cellular
+)
+
+# Source files
+set(unittest-sources
+  ../features/cellular/framework/device/CellularContext.cpp
+)
+
+# Test files
+set(unittest-test-sources
+  features/cellular/framework/device/cellularcontext/cellularcontexttest.cpp
+  stubs/FileHandle_stub.cpp
+  stubs/CellularStateMachine_stub.cpp
+  stubs/EventQueue_stub.cpp
+  stubs/mbed_assert_stub.c
+  stubs/UARTSerial_stub.cpp
+  stubs/SerialBase_stub.cpp
+  stubs/ATHandler_stub.cpp
+  stubs/AT_CellularNetwork_stub.cpp
+  stubs/AT_CellularBase_stub.cpp
+  stubs/AT_CellularContext_stub.cpp
+  stubs/Semaphore_stub.cpp
+  stubs/NetworkInterface_stub.cpp
+  stubs/NetworkInterfaceDefaults_stub.cpp
+  stubs/CellularDevice_stub.cpp
+  stubs/equeue_stub.c
+  stubs/ThisThread_stub.cpp
+)
+
+# defines
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DMDMRTS=PTC0 -DMDMCTS=PTC1 -DMDMTXD=NC -DMDMRXD=NC -DMBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE=115200 -DCELLULAR_DEVICE=myCellularDevice -DDEVICE_SERIAL_FC=1 -DMBED_CONF_CELLULAR_CONTROL_PLANE_OPT=0")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMDMRTS=PTC0 -DMDMCTS=PTC1 -DMDMTXD=NC -DMDMRXD=NC -DMBED_CONF_PLATFORM_DEFAULT_SERIAL_BAUD_RATE=115200 -DCELLULAR_DEVICE=myCellularDevice -DDEVICE_SERIAL_FC=1 -DMBED_CONF_CELLULAR_CONTROL_PLANE_OPT=0")

UNITTESTS/stubs/CellularContext_stub.cpp

@@ -43,6 +43,11 @@ int CellularContext::get_cid() const
     return _cid;
 }
 
+void CellularContext::set_authentication_type(AuthenticationType type)
+{
+    _authentication_type = type;
+}
+
 void CellularContext::do_connect_with_retry()
 {
     do_connect();