59 lines
1.8 KiB
Dart
59 lines
1.8 KiB
Dart
import 'package:flutter/widgets.dart';
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import 'package:test/test.dart';
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import 'package:simple_math_calc/solver.dart';
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void main() {
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group('求解器测试', () {
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final solver = SolverService();
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test('简单表达式求值', () {
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final result = solver.solve('2 + 3 * 4');
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expect(result.finalAnswer, contains('14'));
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});
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test('简单方程求解', () {
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final result = solver.solve('2x + 3 = 7');
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expect(result.finalAnswer, contains('x = 2'));
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});
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test('二次方程求解', () {
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final result = solver.solve('x^2 - 5x + 6 = 0');
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debugPrint(result.finalAnswer);
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expect(
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result.finalAnswer.contains('x_1 = 2') &&
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result.finalAnswer.contains('x_2 = 3'),
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true,
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);
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});
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test('三角函数求值', () {
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final result = solver.solve('sin(30)');
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debugPrint(result.finalAnswer);
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expect(result.finalAnswer.contains(r'\frac{1}{2}'), true);
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});
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test('带括号的复杂表达式', () {
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final result = solver.solve('(2 + 3) * 4');
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expect(result.finalAnswer, contains('20'));
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});
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test('括号展开的二次方程', () {
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final result = solver.solve('(x+8)(x+1)=-12');
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debugPrint('Result for (x+8)(x+1)=-12: ${result.finalAnswer}');
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// 这个方程应该被识别为一元二次方程，正确解应该是 x = -4 或 x = -5
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expect(
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result.steps.any((step) => step.title == '整理方程'),
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true,
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reason: '方程应被识别为一元二次方程并进行整理',
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);
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expect(
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(result.finalAnswer.contains('-4') &&
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result.finalAnswer.contains('-5')) ||
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result.finalAnswer.contains('x = -4') ||
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result.finalAnswer.contains('x = -5'),
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true,
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);
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});
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});
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}
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