test_protocols intermittent failure about pyobjc HOT 2 OPEN

#import <objc/runtime.h>
#include <stdio.h>


int main(void)
{
    SEL sel1 = sel_registerName("protoMethod:");
    const char* sig1 = "I@:";

    SEL sel2 = sel_registerName("anotherProto:with:");
    const char* sig2 = "v@:ii";

    Protocol* p = objc_allocateProtocol("MyProtocol");
    struct objc_method_description descr;

    if (p == NULL) {
        printf("cannot create protocol\n");
        return 1;
    }

    protocol_addMethodDescription(p, sel1, sig1, YES, YES);

    descr = protocol_getMethodDescription(p, sel1, YES, YES);
    if (descr.name == NULL) {
        printf("added selector 1 not found protocol (build phase)\n");
        return 1;
    }

    protocol_addMethodDescription(p, sel2, sig2, YES, YES);

    descr = protocol_getMethodDescription(p, sel2, YES, YES);
    if (descr.name == NULL) {
        printf("added selector 2 not found protocol (build phase)\n");
        return 1;
    }

    objc_registerProtocol(p);        

    descr = protocol_getMethodDescription(p, sel1, YES, YES);
    if (descr.name == NULL) {
        printf("added selector 1 not found protocol (registered phase)\n");
        return 1;
    }

    descr = protocol_getMethodDescription(p, sel2, YES, YES);
    if (descr.name == NULL) {
        printf("added selector 2 not found protocol (registered phase)\n");
        return 1;
    }

    return 0;
}