Added unit tests, and fixed two bugs: (#53)

* Integer conversion checks in src/wire/read.h
 * Missing "boolean" function in wire::writer and derived types

src/wire/write.h

@@ -47,6 +47,8 @@ namespace wire
 
     virtual ~writer() noexcept;
 
+    virtual void boolean(bool) = 0;
+
     virtual void integer(int) = 0;
     virtual void integer(std::intmax_t) = 0;
 
@@ -78,6 +80,11 @@ namespace wire
 
   // leave in header, compiler can de-virtualize when final type is given
 
+  inline void write_bytes(writer& dest, const bool source)
+  {
+    dest.boolean(source);
+  }
+
   inline void write_bytes(writer& dest, const int source)
   {
     dest.integer(source);