Yes, you can use useContext without a Provider, but the result will be that you receive the default value that was defined when you created the context. Here's a breakdown:
React.createContext(defaultValue) :
React.createContext(), you can provide an optional defaultValue.defaultValue serves as a fallback value that useContext will return if no matching Provider is found in the component tree above the component calling useContext.useContext(MyContext) :
useContext(MyContext), React searches upwards in the component tree for the nearest MyContext.Provider.Provider is found, useContext returns the value prop of that Provider.Provider is found, useContext returns the defaultValue that was passed to React.createContext().
Therefore :
useContext without a surrounding Provider, you won't get an error. Instead, you'll simply get the default value.Providers for every test.In essence, the Provider's role is to override the default context value, and if it is not present, the default value is what is returned.