refactor: split files and tests

Author: deandreamatias

README.md

@@ -49,7 +49,7 @@ Also included is the `l10n` / `i18n` of error text messages to multiple language
 This package comes with several most common `FormFieldValidator`s such as required, numeric, mail,
 URL, min, max, minLength, maxLength, minWordsCount, maxWordsCount, IP, credit card, etc., with default `errorText` messages.
 
-Available built-in helper validators:
+### Helper validators
 
 - `FormBuilderValidators.compose()` - runs each validator against the value provided.
 - `FormBuilderValidators.conditional()` - conditionally runs a validator against the value provided.
@@ -60,7 +60,7 @@ Available built-in helper validators:
 - `FormBuilderValidators.skipWhen()` - runs the validator and skips the validation when a certain condition is met.
 - `FormBuilderValidators.defaultValue()` - runs the validator using the default value when the provided value is null.
 
-Available built-in type validators include:
+### Type validators
 
 - `FormBuilderValidators.equal()` - requires the field's value to be equal to the provided object.
 - `FormBuilderValidators.integer()` - requires the field's value to be an integer.
@@ -95,7 +95,7 @@ Available built-in type validators include:
 - `FormBuilderValidators.unique()` - requires the field's to be unique in the provided list.
 - `FormBuilderValidators.singleLine()` - requires the field's string to be a single line of text.
 
-Available built-in use-case validators include:
+### Use-case validators
 
 - `FormBuilderValidators.creditCard()` - requires the field's value to be a valid credit card number.
 - `FormBuilderValidators.creditCardExpirationDate()` - requires the field's value to be a valid credit card expiration date and can check if not expired yet.
@@ -119,7 +119,7 @@ Available built-in use-case validators include:
 - `FormBuilderValidators.bic()` - requires the field's to be an valid BIC.
 - `FormBuilderValidators.isbn()` - requires the field's to be an valid ISBN.
 
-Available extension methods used for chaining validators:
+## Extension methods used for chaining validators
 
 - `FormBuilderValidator.and()` - Combines the current validator with another validator using logical AND.
 - `FormBuilderValidator.or()` - Combines the current validator with another validator using logical OR.

lib/form_builder_validators.dart

@@ -32,3 +32,4 @@ export 'localization/intl/messages_uk.dart';
 export 'localization/intl/messages_zh.dart';
 export 'localization/l10n.dart';
 export 'src/form_builder_validators.dart';
+export 'src/form_field_validator_extensions.dart';

lib/src/form_builder_validators.dart

@@ -1,6 +1,6 @@
-import 'package:flutter/material.dart';
-import '../form_builder_validators.dart';
+import 'package:flutter/widgets.dart';
 
+import '../form_builder_validators.dart';
 import 'utils/helpers.dart';
 import 'utils/validators.dart';
 

test/helper_test.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:form_builder_validators/localization/l10n.dart';
+
+/// Test Harness for running Validations
+Future<void> testValidations(
+  WidgetTester tester,
+  void Function(BuildContext) validations,
+) async {
+  await tester.pumpWidget(
+    MaterialApp(
+      localizationsDelegates: const [
+        FormBuilderLocalizations.delegate,
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+      ],
+      home: Builder(
+        builder: (BuildContext context) {
+          // Exercise validations using the provided context
+          validations(context);
+          // The builder function must return a widget.
+          return const Placeholder();
+        },
+      ),
+    ),
+  );
+
+  // Critical to pumpAndSettle to let Builder build to exercise validations
+  await tester.pumpAndSettle();
+}