chore: add more tests

Author: baseballyama

tests/fixtures/rules/derived-has-same-inputs-outputs/invalid/test01-errors.yaml

@@ -22,3 +22,11 @@
   line: 12
   column: 22
   suggestions: null
+- message: The argument name should be '$l'.
+  line: 15
+  column: 26
+  suggestions: null
+- message: The argument name should be '$o'.
+  line: 18
+  column: 22
+  suggestions: null

tests/fixtures/rules/derived-has-same-inputs-outputs/invalid/test01-input.js

@@ -12,3 +12,9 @@ derived([e, f], ([g, h]) => {
 derived([i, j], ([k, l], set) => {
   /** do nothing */
 })
+derived([null, l], ([$m, $n]) => {
+  /** do nothing */
+})
+derived([o, null], ([$p, $q]) => {
+  /** do nothing */
+})

tests/fixtures/rules/derived-has-same-inputs-outputs/valid/test01-input.js

@@ -12,3 +12,15 @@ derived([e, f], ([$e, $f]) => {
 derived([i, j], ([$i, $j], set) => {
   /** do nothing */
 })
+derived(null, ($null, set) => {
+  /** do nothing */
+})
+derived(null, ($k, set) => {
+  /** do nothing */
+})
+derived([null, l], ([$m, $l]) => {
+  /** do nothing */
+})
+derived([n, null], ([$n, $o]) => {
+  /** do nothing */
+})