refactor: remove Flutter dep from geometry (#27)

* fix: removed flutter dependency

* test: fixed tests for assertions

* test: check assertion with isA

* ci: added geometry workflow file

* refactor: changed flame dep to vector_math for vector2

* fix: changed import for vector to vector_math_64

* Update .github/workflows/geometry.yaml

Co-authored-by: Allison Ryan <77211884+allisonryan0002@users.noreply.github.com>

Co-authored-by: Allison Ryan <77211884+allisonryan0002@users.noreply.github.com>

.github/workflows/geometry.yaml

@@ -0,0 +1,18 @@
+name: geometry
+
+on:
+  push:
+    paths:
+      - "packages/geometry/**"
+      - ".github/workflows/geometry.yaml"
+
+  pull_request:
+    paths:
+      - "packages/geometry/**"
+      - ".github/workflows/geometry.yaml"
+
+jobs:
+  build:
+    uses: VeryGoodOpenSource/very_good_workflows/.github/workflows/dart_package.yml@v1
+    with:
+      working_directory: packages/geometry

packages/geometry/lib/src/geometry.dart

@@ -1,5 +1,6 @@
 import 'dart:math' as math;
-import 'package:flame/extensions.dart';
+
+import 'package:vector_math/vector_math_64.dart';
 
 /// Calculates all [Vector2]s of a circumference.
 ///

packages/geometry/pubspec.yaml

@@ -7,13 +7,9 @@ environment:
   sdk: ">=2.16.0 <3.0.0"
 
 dependencies: 
-  flame: ^1.0.0
-  flutter:
-    sdk: flutter
+  vector_math: ^2.1.1
 
 dev_dependencies:
-  flutter_test:
-    sdk: flutter
   mocktail: ^0.2.0
   test: ^1.19.2
   very_good_analysis: ^2.4.0

packages/geometry/test/src/geometry_test.dart

@@ -1,7 +1,8 @@
 // ignore_for_file: prefer_const_constructors, cascade_invocations
-import 'package:flame/extensions.dart';
-import 'package:flutter_test/flutter_test.dart';
+
 import 'package:geometry/geometry.dart';
+import 'package:test/test.dart';
+import 'package:vector_math/vector_math_64.dart';
 
 class Binomial {
   Binomial({required this.n, required this.k});
@@ -42,18 +43,18 @@ void main() {
           ],
           step: 2,
         ),
-        throwsAssertionError,
+        throwsA(isA<AssertionError>()),
       );
     });
 
     test('fails if not enough control points', () {
       expect(
         () => calculateBezierCurve(controlPoints: [Vector2.zero()]),
-        throwsAssertionError,
+        throwsA(isA<AssertionError>()),
       );
       expect(
         () => calculateBezierCurve(controlPoints: []),
-        throwsAssertionError,
+        throwsA(isA<AssertionError>()),
       );
     });
 
@@ -81,15 +82,24 @@ void main() {
 
   group('binomial', () {
     test('fails if k is negative', () {
-      expect(() => binomial(1, -1), throwsAssertionError);
+      expect(
+        () => binomial(1, -1),
+        throwsA(isA<AssertionError>()),
+      );
     });
 
     test('fails if n is negative', () {
-      expect(() => binomial(-1, 1), throwsAssertionError);
+      expect(
+        () => binomial(-1, 1),
+        throwsA(isA<AssertionError>()),
+      );
     });
 
     test('fails if n < k', () {
-      expect(() => binomial(1, 2), throwsAssertionError);
+      expect(
+        () => binomial(1, 2),
+        throwsA(isA<AssertionError>()),
+      );
     });
 
     test('for a specific input gives a correct value', () {
@@ -131,7 +141,7 @@ void main() {
 
   group('factorial', () {
     test('fails if negative number', () {
-      expect(() => factorial(-1), throwsAssertionError);
+      expect(() => factorial(-1), throwsA(isA<AssertionError>()));
     });
 
     test('for a specific input gives a correct value', () {