Test Stream::parseFloat() with many digits

Author: edgar-bonet

test/src/Stream/test_parseFloat.cpp

@@ -10,6 +10,8 @@
 
 #include <StreamMock.h>
 
+#include <float.h>
+
 /**************************************************************************************
  * TEST CODE
  **************************************************************************************/
@@ -43,6 +45,11 @@ TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_ALL, char ignore =
     mock << "\r\n\t 12.34";
     REQUIRE(mock.parseFloat() == 12.34f);
   }
+  WHEN ("A float is provided with too many digits")
+  {
+    mock << "3.1415926535897932384";
+    REQUIRE(abs(mock.parseFloat() - 3.141592654f) < 8 * FLT_EPSILON);
+  }
 }
 
 TEST_CASE ("Testing parseFloat(LookaheadMode lookahead = SKIP_NONE, char ignore = NO_IGNORE_CHAR)", "[Stream-parseFloat-02]")