Added tests for self-altering expressions

src/test/testCode.c

@@ -21,6 +21,10 @@ int cNeg(int x) {
 int cId(int x) {
   return x;
 }
+int cSelfMinus(int x) {
+  x = x - 1;
+  return x;
+}
 
 void printSuccess(char* name, int x, int y, int expected, int result) {
   printf("SUCCESS:\t%s(%d, %d)\tGOT: %d\tExpected: %d\n", name, x, y, result, expected);
@@ -105,6 +109,12 @@ int main(){
   failed +=  testOneArg("id", cId, id, -1);
   failed +=  testOneArg("id", cId, id, 15);
 
+  printf("\nMisc Tests\n");
+  failed += testOneArg("selfMinus", cSelfMinus, selfMinus, 5);
+  failed += testOneArg("selfMinus", cSelfMinus, selfMinus, 0);
+  failed += testOneArg("selfMinus", cSelfMinus, selfMinus, 100);
+  failed += testOneArg("selfMinus", cSelfMinus, selfMinus, -50);
+
   // Tests for passing arguments to functions
   failed += runFunctionCallTests();
 

src/test/testCode.h

@@ -7,4 +7,5 @@ int sub(int x, int y);
 int mul(int x, int y);
 int modulo(int x, int y);
 int neg(int x);
-int id(int x);
+int id(int x);
+int selfMinus(int x);

src/test/tests.k

@@ -133,6 +133,11 @@ function gte(x, y) {
   return (x >= y);
 }
 
+function selfMinus(x) {
+  x = (x - 1);
+  return x;
+}
+
 function myWhile(end) {
   let cond = 0;
   while ((cond < end)) {
@@ -141,4 +146,4 @@ function myWhile(end) {
   return cond;
 }
 
-add(1, 1);
+add(1, 1);