diff --git a/test/expected/halfvec_functions.out b/test/expected/halfvec_functions.out
index 02d7c4c..652430d 100644
--- a/test/expected/halfvec_functions.out
+++ b/test/expected/halfvec_functions.out
@@ -176,6 +176,18 @@ SELECT l2_norm('[0,1]'::halfvec);
        1
 (1 row)
 
+SELECT l2_norm('[0,0]'::halfvec);
+ l2_norm 
+---------
+       0
+(1 row)
+
+SELECT l2_norm('[2]'::halfvec);
+ l2_norm 
+---------
+       2
+(1 row)
+
 SELECT l2_distance('[0,0]'::halfvec, '[3,4]');
  l2_distance 
 -------------
diff --git a/test/expected/sparsevec_functions.out b/test/expected/sparsevec_functions.out
index ff87fb1..5e2672b 100644
--- a/test/expected/sparsevec_functions.out
+++ b/test/expected/sparsevec_functions.out
@@ -136,6 +136,18 @@ SELECT l2_norm('{1:3e37,2:4e37}/2'::sparsevec)::real;
    5e+37
 (1 row)
 
+SELECT l2_norm('{}/2'::sparsevec);
+ l2_norm 
+---------
+       0
+(1 row)
+
+SELECT l2_norm('{1:2}/1'::sparsevec);
+ l2_norm 
+---------
+       2
+(1 row)
+
 SELECT l2_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
  l2_distance 
 -------------
diff --git a/test/expected/vector_functions.out b/test/expected/vector_functions.out
index f6a3107..15b18eb 100644
--- a/test/expected/vector_functions.out
+++ b/test/expected/vector_functions.out
@@ -182,6 +182,18 @@ SELECT vector_norm('[3e37,4e37]')::real;
        5e+37
 (1 row)
 
+SELECT vector_norm('[0,0]');
+ vector_norm 
+-------------
+           0
+(1 row)
+
+SELECT vector_norm('[2]');
+ vector_norm 
+-------------
+           2
+(1 row)
+
 SELECT l2_distance('[0,0]'::vector, '[3,4]');
  l2_distance 
 -------------
diff --git a/test/sql/halfvec_functions.sql b/test/sql/halfvec_functions.sql
index 788e283..c883c57 100644
--- a/test/sql/halfvec_functions.sql
+++ b/test/sql/halfvec_functions.sql
@@ -40,6 +40,8 @@ SELECT vector_dims('[1,2,3]'::halfvec);
 SELECT round(l2_norm('[1,1]'::halfvec)::numeric, 5);
 SELECT l2_norm('[3,4]'::halfvec);
 SELECT l2_norm('[0,1]'::halfvec);
+SELECT l2_norm('[0,0]'::halfvec);
+SELECT l2_norm('[2]'::halfvec);
 
 SELECT l2_distance('[0,0]'::halfvec, '[3,4]');
 SELECT l2_distance('[0,0]'::halfvec, '[0,1]');
diff --git a/test/sql/sparsevec_functions.sql b/test/sql/sparsevec_functions.sql
index 2ff6cc7..02f9d12 100644
--- a/test/sql/sparsevec_functions.sql
+++ b/test/sql/sparsevec_functions.sql
@@ -23,6 +23,8 @@ SELECT round(l2_norm('{1:1,2:1}/2'::sparsevec)::numeric, 5);
 SELECT l2_norm('{1:3,2:4}/2'::sparsevec);
 SELECT l2_norm('{2:1}/2'::sparsevec);
 SELECT l2_norm('{1:3e37,2:4e37}/2'::sparsevec)::real;
+SELECT l2_norm('{}/2'::sparsevec);
+SELECT l2_norm('{1:2}/1'::sparsevec);
 
 SELECT l2_distance('{}/2'::sparsevec, '{1:3,2:4}/2');
 SELECT l2_distance('{1:3}/2'::sparsevec, '{2:4}/2');
diff --git a/test/sql/vector_functions.sql b/test/sql/vector_functions.sql
index 2d195d7..d2dae5a 100644
--- a/test/sql/vector_functions.sql
+++ b/test/sql/vector_functions.sql
@@ -41,6 +41,8 @@ SELECT round(vector_norm('[1,1]')::numeric, 5);
 SELECT vector_norm('[3,4]');
 SELECT vector_norm('[0,1]');
 SELECT vector_norm('[3e37,4e37]')::real;
+SELECT vector_norm('[0,0]');
+SELECT vector_norm('[2]');
 
 SELECT l2_distance('[0,0]'::vector, '[3,4]');
 SELECT l2_distance('[0,0]'::vector, '[0,1]');