reftable_record_is_deletion() is a function defined in
reftable/record.{c, h} that determines whether a record is of
type deletion or not. In the current testing setup, this function
is left untested for three of the four record types (log, obj, index).

Add tests for this function in the case of log records.

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 99dad75fb1..8983d54bb3 100644
--- a/t/unit-tests/t-reftable-record.c
+++ b/t/unit-tests/t-reftable-record.c

@@ -220,6 +220,10 @@ 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