Merge pull request #327 from mondoktamas/master

Added hasScope api to easily verify if the scope already pushed before

Author: escamoteur

README.md

@@ -251,6 +251,9 @@ Another example could be a shopping basket where you want to ensure that not a c
   /// As dispose functions can be async, you should await this function.
   Future<void> dropScope(String scopeName);
 
+  /// Tests if the scope by name [scopeName] is registered in GetIt
+  bool hasScope(String scopeName);
+
   /// Clears all registered types for the current scope
   /// If you provided dispose function when registering they will be called
   /// [dispose] if `false` it only resets without calling any dispose
@@ -516,7 +519,7 @@ In some cases, it's handy if you could pass changing values to factories when ca
 /// [factoryfunc] factory function for this type that accepts two parameters
 /// [instanceName] if you provide a value here your factory gets registered with that
 /// name instead of a type. This should only be necessary if you need to register more
-/// than one instance of one type. 
+/// than one instance of one type.
 ///
 /// example:
 ///    getIt.registerFactoryParam<TestClassParam,String,int>((s,i)

lib/get_it.dart

@@ -427,6 +427,9 @@ abstract class GetIt {
   /// As dispose functions can be async, you should await this function.
   Future<void> dropScope(String scopeName);
 
+  /// Tests if the scope by name [scopeName] is registered in GetIt
+  bool hasScope(String scopeName);
+
   /// Returns the name of the current scope if it has one otherwise null
   /// if you are already on the baseScope it returns 'baseScope'
   String? get currentScopeName;

lib/get_it_impl.dart

@@ -897,6 +897,12 @@ class _GetItImplementation implements GetIt {
     _scopes.remove(scope);
   }
 
+  /// Tests if the scope by name [scopeName] is registered in GetIt
+  @override
+  bool hasScope(String scopeName) {
+    return _scopes.any((x) => x.name == scopeName);
+  }
+
   @override
   String? get currentScopeName => _currentScope.name;
 

test/scope_test.dart

@@ -11,9 +11,11 @@ abstract class TestBaseClass {}
 
 class TestClass extends TestBaseClass {
   final String? id;
+
   TestClass([this.id]) {
     constructorCounter++;
   }
+
   void dispose() {
     disposeCounter++;
   }
@@ -27,6 +29,7 @@ class TestClassShadowChangHandler extends TestBaseClass
   TestClassShadowChangHandler(this.onShadowChange, [this.id]) {
     constructorCounter++;
   }
+
   void dispose() {
     disposeCounter++;
   }
@@ -44,7 +47,9 @@ class TestClassShadowChangHandler extends TestBaseClass
 
 class TestClass2 {
   final String? id;
+
   TestClass2([this.id]);
+
   void dispose() {
     disposeCounter++;
   }
@@ -677,6 +682,23 @@ void main() {
     expect(getIt<TestClass>(instanceName: 'scope3'), isNotNull);
   });
 
+  test(
+    'has registered scope test',
+    () async {
+      final getIt = GetIt.instance;
+      getIt.pushNewScope(scopeName: 'scope1');
+      getIt.pushNewScope(scopeName: 'scope2');
+      getIt.pushNewScope(scopeName: 'scope3');
+
+      expect(getIt.hasScope('scope2'), isTrue);
+      expect(getIt.hasScope('scope4'), isFalse);
+
+      await getIt.dropScope('scope2');
+
+      expect(getIt.hasScope('scope2'), isFalse);
+    },
+  );
+
   test('full reset no dispose', () async {
     final getIt = GetIt.instance;
     constructorCounter = 0;