[python/test] Do not use such a big python heap

apps/code/app.h

@@ -69,13 +69,15 @@ public:
   void deinitPython();
 
   VariableBoxController * variableBoxController() { return &m_variableBoxController; }
+
+  static constexpr int k_pythonHeapSize = 16384;
+
 private:
   /* Python delegate:
    * MicroPython requires a heap. To avoid dynamic allocation, we keep a working
    * buffer here and we give to controllers that load Python environment. We
    * also memoize the last Python user to avoid re-initiating MicroPython when
    * unneeded. */
-  static constexpr int k_pythonHeapSize = 16384;
   char m_pythonHeap[k_pythonHeapSize];
   const void * m_pythonUser;
 

python/test/mandelbrot.cpp

@@ -2,6 +2,7 @@
 #include <assert.h>
 #include <string.h>
 #include <python/port/port.h>
+#include <apps/code/app.h>
 
 
 class TestExecutionEnvironment : public MicroPython::ExecutionEnvironment {
@@ -13,8 +14,8 @@ void TestExecutionEnvironment::printText(const char * text, size_t length) {
   quiz_print(text);
 }
 
-static constexpr int k_pythonHeapSize = 16384;
-static char s_pythonHeap[k_pythonHeapSize*100];
+static constexpr int s_pythonHeapSize = Code::App::k_pythonHeapSize;
+static char s_pythonHeap[s_pythonHeapSize];
 
 static const char * s_mandelbrotScript = R"(#
 def mandelbrot(N_iteration):
@@ -61,7 +62,7 @@ QUIZ_CASE(python_mandelbrot) {
   constexpr size_t bufferSize = 500;
   char buffer[bufferSize];
   inlineToBeSingleInput(buffer, bufferSize, s_mandelbrotScript);
-  MicroPython::init(s_pythonHeap, s_pythonHeap + k_pythonHeapSize);
+  MicroPython::init(s_pythonHeap, s_pythonHeap + s_pythonHeapSize);
   TestExecutionEnvironment env;
   env.runCode(buffer);
   MicroPython::deinit();