Some more testing files

test/main.cpp

@@ -1,5 +1,6 @@
 /*!
- * \file    test/main.cpp
+ * \file main.cpp
+ * \brief   Test project main file
  *
  * Copyright (C) 2018 Christos Choutouridis
  *
@@ -20,6 +21,7 @@
 #include <gtest.h>
 #include <iostream>
 
+
 GTEST_API_ int main(int argc, char **argv) {
   std::cout << "Running tests from main.cpp\n";
   testing::InitGoogleTest(&argc, argv);

test/tests/test_1w_impl.cpp

@@ -0,0 +1,70 @@
+/*!
+ * \file test_1w_impl.cpp
+ *
+ * Copyright (C) 2018 Christos Choutouridis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include <gtest.h>
+#include <utl/com/_1wire_uart.h>
+
+/*!
+ * \warning
+ *    This is not right way of testing communication interfaces. We have to
+ *    implement a Mock object to simulate the slave's behavior. Until then
+ *    we have the following.
+ */
+namespace test_1w {
+   using namespace utl;
+
+   // implementer class stub
+   class OW : public _1wire_uart_i<OW> {
+      friend _1wire_uart_i<OW>;
+      byte_t UART_RW (byte_t byte) {
+         // return the given. This also mean no-device
+         return byte;
+      }
+      void UART_BR (uint32_t br) {} // imaginary baud-rate implementation
+   };
+
+   // fixture
+   class Test_1w_impl : public ::testing::Test {
+   protected:
+      //void SetUp() override { }
+      //void TearDown() override { }
+      OW ow;
+   };
+
+   TEST_F(Test_1w_impl, TestConcept) {
+      EXPECT_EQ(_1Wire_i<OW>, true);
+   }
+
+   TEST_F(Test_1w_impl, TestConstruction) {
+      EXPECT_GT(sizeof(ow), 0UL);
+   }
+
+   TEST_F (Test_1w_impl, TestFunctionality) {
+      byte_t b {42};
+
+      _1wire_id_t id = ow.first(OW::Speed::STD);
+      EXPECT_EQ (id != _1wire_id_t::nullDev(), false); // as long as there is no slave Mock
+
+      EXPECT_EQ (ow.reset(OW::Speed::STD), false);    // as long as there is no slave Mock
+      //ow.match(id, OW::Speed::STD);
+      EXPECT_EQ(ow.rx_data(OW::Speed::STD), 0xFF);
+      EXPECT_EQ(ow.tx_data(b, OW::Speed::STD), 42);
+
+   }
+}

test/tests/test_i2c_impl.cpp

@@ -0,0 +1,74 @@
+/*!
+ * \file test_i2c_impl.cpp
+ *
+ * Copyright (C) 2018 Christos Choutouridis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#include <gtest.h>
+#include <utl/com/i2c_bb.h>
+
+/*!
+ * \warning
+ *    This is not right way of testing communication interfaces. We have to
+ *    implement a Mock object to simulate the slave's behavior. Until then
+ *    we have the following.
+ */
+namespace test_i2c {
+   using namespace utl;
+
+   // implementer class stub
+   class I2C : public i2c_bb_i<I2C> {
+      friend i2c_bb_i<I2C>;
+      void SCL (bool x) { }   // imaginary SCL pin functionality
+      bool SDA  (SDAMode mode, bool x) {
+         // always read 0 back (which means always ACK)
+         return 0;
+      }
+      void delay (uint32_t u) {
+         // Pseudo-delay
+         for (int i =0 ; i<10 ; ++i)
+            ;
+      }
+
+   public:
+      I2C (uint32_t clk =100000) noexcept
+         : i2c_bb_i<I2C>(clk) {
+         start();
+      }
+   };
+
+   TEST(Test_i2c_impl, TestConcept) {
+      I2C i2c {};
+      EXPECT_EQ(I2c_i<I2C>, true);
+   }
+
+   TEST(Test_i2c_impl, TestConstruction) {
+      I2C i2c {};
+      EXPECT_EQ(i2c.clock(), 100000UL);
+   }
+
+   TEST(Test_i2c_impl, TestFunctionality) {
+      I2C i2c {};
+      uint8_t b = 42;
+
+      i2c.clock(200000UL);
+      EXPECT_EQ(i2c.clock(), 200000UL);
+
+      EXPECT_EQ(i2c.tx_data(b), true);
+      EXPECT_EQ(i2c.rx_data(true), 0x00);
+      EXPECT_EQ(i2c.rx_data(false), 0x00);
+   }
+}

test/tests/test_spi_impl.cpp

@@ -1,5 +1,5 @@
 /*!
- * \file test_spi_bb.cpp
+ * \file test_spi_impl.cpp
  *
  * Copyright (C) 2018 Christos Choutouridis
  *
@@ -20,10 +20,16 @@
 #include <gtest.h>
 #include <utl/com/spi_bb.h>
 
+/*!
+ * \warning
+ *    This is not right way of testing communication interfaces. We have to
+ *    implement a Mock object to simulate the slave's behavior. Until then
+ *    we have the following.
+ */
 namespace test_spi {
    using namespace utl;
 
-   // derived class stub
+   // implementer class stub
    class SPI : public spi_bb_i<SPI, spi::cpol::LOW, spi::cpha::LOW> {
       friend spi_bb_i<SPI, spi::cpol::LOW, spi::cpha::LOW>;
       void MOSI (bool st) { }       // Imaginary pin functionality
@@ -38,22 +44,22 @@ namespace test_spi {
    };
 
    // fixture
-   class Test_spi_bb : public ::testing::Test {
+   class Test_spi_impl : public ::testing::Test {
    protected:
       //void SetUp() override { }
       //void TearDown() override { }
       SPI spi {};
    };
 
-   TEST_F(Test_spi_bb, TestConcept) {
+   TEST_F(Test_spi_impl, TestConcept) {
       EXPECT_EQ(Spi_i<SPI>, true);
    }
 
-   TEST_F(Test_spi_bb, TestConstruction) {
+   TEST_F(Test_spi_impl, TestConstruction) {
       EXPECT_EQ(spi.clock(), 100000UL);
    }
 
-   TEST_F (Test_spi_bb, TestFunctionality) {
+   TEST_F (Test_spi_impl, TestFunctionality) {
       uint8_t b = 42;
       uint8_t bb[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
       uint8_t bbb[sizeof bb];