Testing arduino string

Author: FabioBatSilva

src/arduino/noniso.c

@@ -166,7 +166,7 @@ extern char* ultoa( unsigned long value, char *string, int radix )
 }
 
 char *dtostrf (double val, signed char width, unsigned char prec, char *sout) {
-  asm(".global _printf_float");
+  //asm(".global _printf_float");
 
   char fmt[20];
   sprintf(fmt, "%%%d.%df", width, prec);

test/main.cpp

@@ -10,6 +10,7 @@ using namespace fakeit;
 #include "test_stream.h"
 #include "test_serial.h"
 #include "test_client.h"
+#include "test_arduino_string.h"
 
 #ifdef UNIT_TEST
 
@@ -27,6 +28,8 @@ int main(int argc, char **argv)
 {
     UNITY_BEGIN();
 
+    RUN_TEST_GROUP(ArduinoStringTest);
+
     RUN_TEST_GROUP(ArduinoContextTest);
     RUN_TEST_GROUP(FunctionTest);
     RUN_TEST_GROUP(PrintTest);

test/test_arduino_string.h

@@ -0,0 +1,37 @@
+#ifdef UNIT_TEST
+
+namespace ArduinoStringTest
+{
+    void test_constructors(void)
+    {
+        String string01 = "Hello String";
+        String string02 = String('a');
+        String string03 = String("This is a string");
+        String string04 = String(string03 + " with more");
+        String string05 = String(13);
+        String string06 = String(1000, DEC);
+        String string07 = String(45, HEX);
+        String string08 = String(255, BIN);
+        String string09 = String(20000L, DEC);
+        String string10 = String(5.698, 3);
+
+        TEST_ASSERT_EQUAL_STRING("Hello String", string01.c_str());
+        TEST_ASSERT_EQUAL_STRING("a", string02.c_str());
+        TEST_ASSERT_EQUAL_STRING("This is a string", string03.c_str());
+        TEST_ASSERT_EQUAL_STRING("This is a string with more", string04.c_str());
+
+        TEST_ASSERT_EQUAL_STRING("13", string05.c_str());
+        TEST_ASSERT_EQUAL_STRING("1000", string06.c_str());
+        TEST_ASSERT_EQUAL_STRING("2d", string07.c_str());
+        TEST_ASSERT_EQUAL_STRING("11111111", string08.c_str());
+        TEST_ASSERT_EQUAL_STRING("20000", string09.c_str());
+        TEST_ASSERT_EQUAL_STRING("5.698", string10.c_str());
+    }
+
+    void run_tests()
+    {
+        RUN_TEST(ArduinoStringTest::test_constructors);
+    }
+}
+
+#endif