Added tests for FlashStringAdapter

src/ArduinoJson/Polyfills/pgmspace.hpp

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <ArduinoJson/Namespace.hpp>
+#include <ArduinoJson/Polyfills/assert.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {
 // Wraps a const char* so that the our functions are picked only if the
@@ -18,6 +19,7 @@ struct pgm_p {
 #ifndef strlen_P
 inline size_t strlen_P(ARDUINOJSON_NAMESPACE::pgm_p s) {
   const char* p = s.address;
+  ARDUINOJSON_ASSERT(p != NULL);
   while (pgm_read_byte(p)) p++;
   return size_t(p - s.address);
 }
@@ -27,6 +29,8 @@ inline size_t strlen_P(ARDUINOJSON_NAMESPACE::pgm_p s) {
 inline int strncmp_P(const char* a, ARDUINOJSON_NAMESPACE::pgm_p b, size_t n) {
   const char* s1 = a;
   const char* s2 = b.address;
+  ARDUINOJSON_ASSERT(s1 != NULL);
+  ARDUINOJSON_ASSERT(s2 != NULL);
   while (n-- > 0) {
     char c1 = *s1++;
     char c2 = static_cast<char>(pgm_read_byte(s2++));
@@ -45,6 +49,8 @@ inline int strncmp_P(const char* a, ARDUINOJSON_NAMESPACE::pgm_p b, size_t n) {
 inline int strcmp_P(const char* a, ARDUINOJSON_NAMESPACE::pgm_p b) {
   const char* s1 = a;
   const char* s2 = b.address;
+  ARDUINOJSON_ASSERT(s1 != NULL);
+  ARDUINOJSON_ASSERT(s2 != NULL);
   for (;;) {
     char c1 = *s1++;
     char c2 = static_cast<char>(pgm_read_byte(s2++));
@@ -62,6 +68,8 @@ inline int strcmp_P(const char* a, ARDUINOJSON_NAMESPACE::pgm_p b) {
 inline void* memcpy_P(void* dst, ARDUINOJSON_NAMESPACE::pgm_p src, size_t n) {
   uint8_t* d = reinterpret_cast<uint8_t*>(dst);
   const char* s = src.address;
+  ARDUINOJSON_ASSERT(d != NULL);
+  ARDUINOJSON_ASSERT(s != NULL);
   while (n-- > 0) {
     *d++ = pgm_read_byte(s++);
   }

src/ArduinoJson/Polyfills/safe_strcmp.hpp

@@ -6,6 +6,8 @@
 
 #include <ArduinoJson/Namespace.hpp>
 
+#include <stdint.h>  // int8_t
+
 namespace ARDUINOJSON_NAMESPACE {
 
 inline int8_t safe_strcmp(const char* a, const char* b) {

src/ArduinoJson/Strings/ArduinoStringAdapter.hpp

@@ -7,6 +7,7 @@
 #include <WString.h>
 
 #include <ArduinoJson/Polyfills/safe_strcmp.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/ConstRamStringAdapter.hpp

@@ -8,6 +8,7 @@
 #include <string.h>  // strcmp
 
 #include <ArduinoJson/Polyfills/safe_strcmp.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/FlashStringAdapter.hpp

@@ -4,7 +4,9 @@
 
 #pragma once
 
+#include <ArduinoJson/Memory/MemoryPool.hpp>
 #include <ArduinoJson/Polyfills/pgmspace.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/IsString.hpp

@@ -0,0 +1,18 @@
+// ArduinoJson - arduinojson.org
+// Copyright Benoit Blanchon 2014-2020
+// MIT License
+
+#pragma once
+
+#include <ArduinoJson/Polyfills/type_traits.hpp>
+
+namespace ARDUINOJSON_NAMESPACE {
+template <typename>
+struct IsString : false_type {};
+
+template <typename T>
+struct IsString<const T> : IsString<T> {};
+
+template <typename T>
+struct IsString<T&> : IsString<T> {};
+}  // namespace ARDUINOJSON_NAMESPACE

src/ArduinoJson/Strings/RamStringAdapter.hpp

@@ -4,7 +4,9 @@
 
 #pragma once
 
+#include <ArduinoJson/Memory/MemoryPool.hpp>
 #include <ArduinoJson/Strings/ConstRamStringAdapter.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/SizedFlashStringAdapter.hpp

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <ArduinoJson/Namespace.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/SizedRamStringAdapter.hpp

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <ArduinoJson/Namespace.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 #include <string.h>  // strcmp

src/ArduinoJson/Strings/StlStringAdapter.hpp

@@ -4,7 +4,9 @@
 
 #pragma once
 
+#include <ArduinoJson/Memory/MemoryPool.hpp>
 #include <ArduinoJson/Namespace.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 #include <string>

src/ArduinoJson/Strings/String.hpp

@@ -5,6 +5,7 @@
 #pragma once
 
 #include <ArduinoJson/Strings/ConstRamStringAdapter.hpp>
+#include <ArduinoJson/Strings/IsString.hpp>
 #include <ArduinoJson/Strings/StoragePolicy.hpp>
 
 namespace ARDUINOJSON_NAMESPACE {

src/ArduinoJson/Strings/StringAdapters.hpp

@@ -4,20 +4,6 @@
 
 #pragma once
 
-#include <ArduinoJson/Memory/MemoryPool.hpp>
-#include <ArduinoJson/Polyfills/type_traits.hpp>
-
-namespace ARDUINOJSON_NAMESPACE {
-template <typename>
-struct IsString : false_type {};
-
-template <typename T>
-struct IsString<const T> : IsString<T> {};
-
-template <typename T>
-struct IsString<T&> : IsString<T> {};
-}  // namespace ARDUINOJSON_NAMESPACE
-
 #include <ArduinoJson/Strings/ConstRamStringAdapter.hpp>
 #include <ArduinoJson/Strings/RamStringAdapter.hpp>
 #include <ArduinoJson/Strings/SizedRamStringAdapter.hpp>