diff --git a/test/expected/sparsevec_functions.out b/test/expected/sparsevec_functions.out
index 27359ec..581e74c 100644
--- a/test/expected/sparsevec_functions.out
+++ b/test/expected/sparsevec_functions.out
@@ -190,6 +190,18 @@ SELECT cosine_distance('{1:1,2:2}/2'::sparsevec, '{}/2');
              NaN
 (1 row)
 
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:1,2:1}/2');
+ cosine_distance 
+-----------------
+               0
+(1 row)
+
+SELECT cosine_distance('{1:1}/2'::sparsevec, '{2:2}/2');
+ cosine_distance 
+-----------------
+               1
+(1 row)
+
 SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:-1,2:-1}/2');
  cosine_distance 
 -----------------
@@ -202,14 +214,32 @@ SELECT cosine_distance('{1:2}/2'::sparsevec, '{2:2}/2');
                1
 (1 row)
 
+SELECT cosine_distance('{1:1,2:2}/2'::sparsevec, '{1:3}/1');
+ERROR:  different sparsevec dimensions 2 and 1
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:1.1,2:1.1}/2');
+ cosine_distance 
+-----------------
+               0
+(1 row)
+
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:-1.1,2:-1.1}/2');
+ cosine_distance 
+-----------------
+               2
+(1 row)
+
+SELECT cosine_distance('{1:3e38}/1'::sparsevec, '{1:3e38}/1');
+ cosine_distance 
+-----------------
+             NaN
+(1 row)
+
 SELECT cosine_distance('{}/1'::sparsevec, '{}/1');
  cosine_distance 
 -----------------
              NaN
 (1 row)
 
-SELECT cosine_distance('{1:2}/2'::sparsevec, '{1:1}/3');
-ERROR:  different sparsevec dimensions 2 and 3
 SELECT l1_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
  l1_distance 
 -------------
diff --git a/test/sql/sparsevec_functions.sql b/test/sql/sparsevec_functions.sql
index 6fb5cdf..c61ce81 100644
--- a/test/sql/sparsevec_functions.sql
+++ b/test/sql/sparsevec_functions.sql
@@ -35,10 +35,15 @@ SELECT sparsevec_negative_inner_product('{1:1,2:2}/2', '{1:2,2:4}/2');
 
 SELECT cosine_distance('{1:1,2:2}/2'::sparsevec, '{1:2,2:4}/2');
 SELECT cosine_distance('{1:1,2:2}/2'::sparsevec, '{}/2');
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:1,2:1}/2');
+SELECT cosine_distance('{1:1}/2'::sparsevec, '{2:2}/2');
 SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:-1,2:-1}/2');
 SELECT cosine_distance('{1:2}/2'::sparsevec, '{2:2}/2');
+SELECT cosine_distance('{1:1,2:2}/2'::sparsevec, '{1:3}/1');
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:1.1,2:1.1}/2');
+SELECT cosine_distance('{1:1,2:1}/2'::sparsevec, '{1:-1.1,2:-1.1}/2');
+SELECT cosine_distance('{1:3e38}/1'::sparsevec, '{1:3e38}/1');
 SELECT cosine_distance('{}/1'::sparsevec, '{}/1');
-SELECT cosine_distance('{1:2}/2'::sparsevec, '{1:1}/3');
 
 SELECT l1_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
 SELECT l1_distance('{}/2'::sparsevec, '{2:1}/2');