Projects testcase added

Author: BrawlerXull

test/taskfunctions/projects_test.dart

@@ -0,0 +1,70 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:taskwarrior/app/utils/taskfunctions/projects.dart';
+
+void main() {
+  test('sparseDecoratedProjectTree test', () {
+    var projects1 = {
+      'projectA': 5,
+      'projectA.subprojectB': 3,
+      'projectA.subprojectC': 2,
+      'projectA.subprojectC.subsubprojectD': 1,
+    };
+    var result1 = sparseDecoratedProjectTree(projects1);
+    expect(result1.keys.toSet(), {
+      'projectA',
+      'projectA.subprojectB',
+      'projectA.subprojectC',
+      'projectA.subprojectC.subsubprojectD',
+    });
+    expect(result1['projectA']!.children, {
+      'projectA.subprojectB',
+      'projectA.subprojectC',
+    });
+    expect(result1['projectA.subprojectC']!.children, {
+      'projectA.subprojectC.subsubprojectD',
+    });
+
+    var projects2 = {
+      'projectX': 10,
+      'projectX.subprojectY': 5,
+      'projectX.subprojectZ': 3,
+      'projectX.subprojectZ.subsubprojectA': 2,
+      'projectX.subprojectZ.subsubprojectB': 1,
+      'projectX.subprojectZ.subsubprojectC': 4,
+    };
+    var result2 = sparseDecoratedProjectTree(projects2);
+    expect(result2.keys.toSet(), {
+      'projectX',
+      'projectX.subprojectY',
+      'projectX.subprojectZ',
+      'projectX.subprojectZ.subsubprojectA',
+      'projectX.subprojectZ.subsubprojectB',
+      'projectX.subprojectZ.subsubprojectC',
+    });
+    expect(result2['projectX.subprojectZ.subsubprojectA']!.parent, 'projectX.subprojectZ');
+    expect(result2['projectX.subprojectZ.subsubprojectC']!.parent, 'projectX.subprojectZ');
+
+    var projects3 = {
+      'rootProject': 0,
+    };
+    var result3 = sparseDecoratedProjectTree(projects3);
+    expect(result3.keys, ['rootProject']);
+    expect(result3['rootProject']!.children.isEmpty, true);
+    expect(result3['rootProject']!.parent, null);
+
+    var projects4 = {
+      'projectP': 2,
+      'projectP.subprojectQ': 3,
+      'projectP.subprojectQ.subsubprojectR': 1,
+    };
+    var result4 = sparseDecoratedProjectTree(projects4);
+    expect(result4.keys.toSet(), {
+      'projectP',
+      'projectP.subprojectQ',
+      'projectP.subprojectQ.subsubprojectR',
+    });
+    expect(result4['projectP.subprojectQ.subsubprojectR']!.parent, 'projectP.subprojectQ');
+
+
+  });
+}