diff --git a/js/test_cases/helpers_eq/README.md b/js/test_cases/helpers_eq/README.md
index 584c2f5..42d393a 100644
--- a/js/test_cases/helpers_eq/README.md
+++ b/js/test_cases/helpers_eq/README.md
@@ -1,5 +1,10 @@
 Without a key parameter, neither the main block nor the else block is rendered.
 
-Without a value parameter, it probably uses "null" but I haven't yet confirmed that with additional testing. Potentially could also just be making all falsey values equal.
-
 Literal values work in both keys and values.
+
+Can't Walk Theory
+-----------------
+
+Assuming a missing value = cantwalk and a non-existent key = cantwalk then their equality makes sense.
+
+The null tests have proven that absent parameters and missing values do not equal null and therefore it is not just making all falsey values equal.
diff --git a/js/test_cases/helpers_eq/input1.json b/js/test_cases/helpers_eq/input1.json
index 0ed8d16..ece58d2 100644
--- a/js/test_cases/helpers_eq/input1.json
+++ b/js/test_cases/helpers_eq/input1.json
@@ -2,5 +2,6 @@
   "str": "master",
   "int": 7,
   "alpha": 21,
-  "beta": "21"
+  "beta": "21",
+  "null": null
 }
diff --git a/js/test_cases/helpers_eq/main.dust b/js/test_cases/helpers_eq/main.dust
index 3d2c60b..8126b32 100644
--- a/js/test_cases/helpers_eq/main.dust
+++ b/js/test_cases/helpers_eq/main.dust
@@ -13,3 +13,6 @@ beta is {beta}{~n}
 {@eq key=alpha}missing value is true{:else}missing value is false{/eq}{~n}
 {@eq key=gamma}missing value and non-existent key is true{:else}missing value and non-existent key is false{/eq}{~n}
 {@eq key="master" value="master"}"master" is equal to "master"{:else}"master" does not equal "master"{/eq}{~n}
+{@eq key=null}null equals a missing value{:else}null does not equal a missing value{/eq}{~n}
+{@eq key=null value=gamma}null equals a non-existent value{:else}null does not equal a non-existent value{/eq}{~n}
+{@eq}no parameters is true{:else}no parameters if false{/eq}{~n}