diff --git a/Cargo.lock b/Cargo.lock
index 6aa53ae..9b2800d 100755
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -37,7 +37,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "cotengrust"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "bit-set",
  "ordered-float",
diff --git a/tests/test_cotengrust.py b/tests/test_cotengrust.py
index 7357fb7..db386ac 100644
--- a/tests/test_cotengrust.py
+++ b/tests/test_cotengrust.py
@@ -56,6 +56,15 @@ def get_rand_size_dict(inputs, d_min=2, d_max=3):
 
 # these are taken from opt_einsum
 test_case_eqs = [
+    # Test single-term equations
+    "->",
+    "a->a",
+    "ab->ab",
+    "ab->ba",
+    "abc->bca",
+    "abc->b",
+    "baa->ba",
+    "aba->b",
     # Test scalar-like operations
     "a,->a",
     "ab,->ab",