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#ifndef GRPC_TEST_CORE_END2END_CQ_VERIFIER_H
#define GRPC_TEST_CORE_END2END_CQ_VERIFIER_H

#include <stdbool.h>

#include <grpc/grpc.h>
#include "test/core/util/test_config.h"

/* A cq_verifier can verify that expected events arrive in a timely fashion
   on a single completion queue */

typedef struct cq_verifier cq_verifier;

/* construct/destroy a cq_verifier */
cq_verifier *cq_verifier_create(grpc_completion_queue *cq);
void cq_verifier_destroy(cq_verifier *v);

/* ensure all expected events (and only those events) are present on the
   bound completion queue */
void cq_verify(cq_verifier *v);

/* ensure that the completion queue is empty */
void cq_verify_empty(cq_verifier *v);

/* ensure that the completion queue is empty, waiting up to \a timeout secs. */
void cq_verify_empty_timeout(cq_verifier *v, int timeout_sec);

/* Various expectation matchers
   Any functions taking ... expect a NULL terminated list of key/value pairs
   (each pair using two parameter slots) of metadata that MUST be present in
   the event. */
void cq_expect_completion(cq_verifier *v, const char *file, int line, void *tag,
                          bool success);
#define CQ_EXPECT_COMPLETION(v, tag, success) \
  cq_expect_completion(v, __FILE__, __LINE__, tag, success)

int byte_buffer_eq_string(grpc_byte_buffer *byte_buffer, const char *string);
int contains_metadata(grpc_metadata_array *array, const char *key,
                      const char *value);

#endif /* GRPC_TEST_CORE_END2END_CQ_VERIFIER_H */