reftable_log_record_is_deletion() is a function defined in
reftable/record.{c, h} which determines whether a log record is of
type deletion or not. In the current testing setup for log records,
this function is left untested. Add tests for the same.

Mentored-by: Patrick Steinhardt [off-list ref]
Mentored-by: Christian Couder [off-list ref]
Signed-off-by: Chandra Pratap <redacted>
---
 t/unit-tests/t-reftable-record.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/t/unit-tests/t-reftable-record.c b/t/unit-tests/t-reftable-record.c
index fe12fd2201..70c1db6756 100644
--- a/t/unit-tests/t-reftable-record.c
+++ b/t/unit-tests/t-reftable-record.c

@@ -225,6 +225,10 @@ static void test_reftable_log_record_roundtrip(void)
 	set_hash(in[2].value.update.new_hash, 3);
 	set_hash(in[2].value.update.old_hash, 4);
 
+	check(!reftable_log_record_is_deletion(&in[0]));
+	check(reftable_log_record_is_deletion(&in[1]));
+	check(!reftable_log_record_is_deletion(&in[2]));
+
 	for (size_t i = 0; i < ARRAY_SIZE(in); i++) {
 		struct reftable_record rec = { .type = BLOCK_TYPE_LOG };
 		struct strbuf key = STRBUF_INIT;

-- 
2.45.2.404.g9eaef5822c