fix(docs): support currying for testing mock (#2137)

* fix(docs): support currying for testing mock

* change function name

* fix lint error

* empty commit to trigger checks

Author: ha1fstack

docs/guides/testing.md

@@ -77,30 +77,42 @@ const { create: actualCreate, createStore: actualCreateStore } =
 // a variable to hold reset functions for all stores declared in the app
 export const storeResetFns = new Set<() => void>()
 
+const createUncurried = <T>(stateCreator: zustand.StateCreator<T>) => {
+  const store = actualCreate(stateCreator)
+  const initialState = store.getState()
+  storeResetFns.add(() => {
+    store.setState(initialState, true)
+  })
+  return store
+}
+
 // when creating a store, we get its initial state, create a reset function and add it in the set
 export const create = (<T>() => {
   console.log('zustand create mock')
 
-  return (stateCreator: zustand.StateCreator<T>) => {
-    const store = actualCreate(stateCreator)
-    const initialState = store.getState()
-    storeResetFns.add(() => {
-      store.setState(initialState, true)
-    })
-    return store
-  }
+  // to support curried version of create
+  return typeof stateCreator === 'function'
+    ? createUncurried(stateCreator)
+    : createUncurried
 }) as typeof zustand.create
 
-// when creating a store, we get its initial state, create a reset function and add it in the set
-export const createStore = (<T>(stateCreator: zustand.StateCreator<T>) => {
-  console.log('zustand createStore mock')
-
+const createStoreUncurried = <T>(stateCreator: zustand.StateCreator<T>) => {
   const store = actualCreateStore(stateCreator)
   const initialState = store.getState()
   storeResetFns.add(() => {
     store.setState(initialState, true)
   })
   return store
+}
+
+// when creating a store, we get its initial state, create a reset function and add it in the set
+export const createStore = (<T>(stateCreator: zustand.StateCreator<T>) => {
+  console.log('zustand createStore mock')
+
+  // to support curried version of createStore
+  return typeof stateCreator === 'function'
+    ? createStoreUncurried(stateCreator)
+    : createStoreUncurried
 }) as typeof zustand.createStore
 
 // reset all stores after each test run
@@ -154,30 +166,42 @@ const { create: actualCreate, createStore: actualCreateStore } =
 // a variable to hold reset functions for all stores declared in the app
 export const storeResetFns = new Set<() => void>()
 
+const createUncurried = <T>(stateCreator: zustand.StateCreator<T>) => {
+  const store = actualCreate(stateCreator)
+  const initialState = store.getState()
+  storeResetFns.add(() => {
+    store.setState(initialState, true)
+  })
+  return store
+}
+
 // when creating a store, we get its initial state, create a reset function and add it in the set
 export const create = (<T>() => {
   console.log('zustand create mock')
 
-  return (stateCreator: zustand.StateCreator<T>) => {
-    const store = actualCreate(stateCreator)
-    const initialState = store.getState()
-    storeResetFns.add(() => {
-      store.setState(initialState, true)
-    })
-    return store
-  }
+  // to support curried version of create
+  return typeof stateCreator === 'function'
+    ? createUncurried(stateCreator)
+    : createUncurried
 }) as typeof zustand.create
 
-// when creating a store, we get its initial state, create a reset function and add it in the set
-export const createStore = (<T>(stateCreator: zustand.StateCreator<T>) => {
-  console.log('zustand createStore mock')
-
+const createStoreUncurried = <T>(stateCreator: zustand.StateCreator<T>) => {
   const store = actualCreateStore(stateCreator)
   const initialState = store.getState()
   storeResetFns.add(() => {
     store.setState(initialState, true)
   })
   return store
+}
+
+// when creating a store, we get its initial state, create a reset function and add it in the set
+export const createStore = (<T>(stateCreator: zustand.StateCreator<T>) => {
+  console.log('zustand createStore mock')
+
+  // to support curried version of createStore
+  return typeof stateCreator === 'function'
+    ? createStoreUncurried(stateCreator)
+    : createStoreUncurried
 }) as typeof zustand.createStore
 
 // reset all stores after each test run