use an enum, and log arguments and inputs

Author: EskiMojo14

src/index.ts

@@ -38,7 +38,7 @@ export { defaultMemoize, defaultEqualityCheck }
 
 export type { DefaultMemoizeOptions }
 
-type StabilityCheck = boolean | 'once'
+type StabilityCheck = 'always' | 'once' | 'never'
 
 let globalStabilityCheck: StabilityCheck = 'once'
 
@@ -159,7 +159,7 @@ export function createSelectorCreator<
 
       if (
         process.env.NODE_ENV !== 'production' &&
-        (finalStabilityCheck === true ||
+        (finalStabilityCheck === 'always' ||
           (finalStabilityCheck === 'once' && firstRun))
       ) {
         const paramsCopy = []
@@ -180,7 +180,12 @@ export function createSelectorCreator<
             'An input selector returned a different result when passed same arguments.' +
               '\nThis means your output selector will likely run more frequently than intended.' +
               '\nAvoid returning a new reference inside your input selector, e.g.' +
-              '\n`createSelector([(arg1, arg2) => ({ arg1, arg2 })],(arg1, arg2) => {})`'
+              '\n`createSelector([(arg1, arg2) => ({ arg1, arg2 })],(arg1, arg2) => {})`',
+            {
+              arguments,
+              firstInputs: params,
+              secondInputs: paramsCopy
+            }
           )
         }
 

test/inputStabilityCheck.spec.ts

@@ -32,25 +32,35 @@ describe('inputStabilityCheck', () => {
     expect(unstableInput).toHaveBeenCalledTimes(2)
 
     expect(consoleSpy).toHaveBeenCalledWith(
-      expect.stringContaining('An input selector returned a different result')
+      expect.stringContaining('An input selector returned a different result'),
+      expect.objectContaining({
+        // IArguments isn't an array :(
+        arguments: expect.anything(),
+        firstInputs: expect.arrayContaining([
+          expect.objectContaining({ a: 1, b: 2 })
+        ]),
+        secondInputs: expect.arrayContaining([
+          expect.objectContaining({ a: 1, b: 2 })
+        ])
+      })
     )
   })
 
   it('disables check if global setting is changed', () => {
-    setInputStabilityCheckEnabled(false)
+    setInputStabilityCheckEnabled('never')
 
     expect(addNums(1, 2)).toBe(3)
 
     expect(unstableInput).toHaveBeenCalledTimes(1)
 
     expect(consoleSpy).not.toHaveBeenCalled()
 
-    setInputStabilityCheckEnabled(true)
+    setInputStabilityCheckEnabled('once')
   })
 
   it('disables check if specified in the selector options', () => {
     const addNums = createSelector([unstableInput], ({ a, b }) => a + b, {
-      inputStabilityCheck: false
+      inputStabilityCheck: 'never'
     })
 
     expect(addNums(1, 2)).toBe(3)