Add test/functions

test/functions.cpp

@@ -0,0 +1,66 @@
+#include "include/test.h"
+
+#include "../src/include/memory.h"
+#include "../src/include/tokenize.h"
+#include "../src/include/parser.h"
+#include "../src/include/analysis.h"
+#include "../src/include/interpreter.h"
+
+EvalResult execute(string s) {
+    Memory memory;;
+    vector<Token> tokens = tokenize({ s });
+    Node ast = parse(tokens);
+    analyze(ast, memory);
+    EvalResult res = eval(ast, memory);
+
+    return res;
+}
+
+int main() {
+    _TEST_PRESENTATION("Fonctions");
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(holds_alternative<monostate>(execute("int a();"))),
+        "Prototype de fonction sans variables",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(holds_alternative<monostate>(execute("void a(int b);"))),
+        "Prototype de fonction à une variable",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(holds_alternative<monostate>(execute("double a(int b, double c, int d);"))),
+        "Prototype de fonction à plusieurs variables",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(holds_alternative<monostate>(execute("double a(int b, double c, int d) { return b+c+d; };"))),
+        "Déclaration de fonction",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_IS_EXCEPTION(execute("int a(int b) { int c(int d) {return d;} return c(b); };"), ErrorType::NestedFunction),
+        "Fonctions imbriquées",
+        true
+    );
+
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(get<int>(execute("int sum(int a, int b) {return a+b;}; sum(20, 7);")) == 27),
+        "Exécution de fonction",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(get<int>(execute("int recurse(int a) {if (a < 27) {return recurse(a+1);} else {return a;}}; recurse(0);")) == 27),
+        "Fonction récursive",
+        true
+    );
+
+    return 0;
+}