a test for the #pragma push/pop_macro

tests/tests2/77_push_pop_macro.c

@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+int main()
+{
+    /* must not affect how #pragma ppop_macro works */
+    #define pop_macro foobar1
+
+    /* must not affect how #pragma push_macro works */
+    #define push_macro foobar2
+
+    #undef abort
+    #define abort "111"
+    printf("abort = %s\n", abort);
+
+    #pragma push_macro("abort")
+    #undef abort
+    #define abort "222"
+    printf("abort = %s\n", abort);
+
+    #pragma push_macro("abort")
+    #undef abort
+    #define abort "333"
+    printf("abort = %s\n", abort);
+
+    #pragma pop_macro("abort")
+    printf("abort = %s\n", abort);
+
+    #pragma pop_macro("abort")
+    printf("abort = %s\n", abort);
+}

tests/tests2/77_push_pop_macro.expect

@@ -0,0 +1,5 @@
+abort = 111
+abort = 222
+abort = 333
+abort = 222
+abort = 111

tests/tests2/Makefile

@@ -95,7 +95,8 @@ TESTS =	\
  73_arm64.test \
  74_nocode_wanted.test \
  75_array_in_struct_init.test \
- 76_dollars_in_identifiers.test
+ 76_dollars_in_identifiers.test \
+ 77_push_pop_macro.test
 
 # 34_array_assignment.test -- array assignment is not in C standard