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Some tests, seems it is working

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Álvaro González 2026-03-05 12:47:10 +01:00
parent bc38acbff6
commit 5fabb4424c
1 changed files with 31 additions and 0 deletions
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31
test/formula_solver_test.dart
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@ -1,6 +1,7 @@
import 'package:d4rt_formulas/formula_evaluator.dart'; import 'package:d4rt_formulas/formula_evaluator.dart';
import 'package:d4rt_formulas/formula_models.dart'; import 'package:d4rt_formulas/formula_models.dart';
import 'package:flutter_test/flutter_test.dart'; import 'package:flutter_test/flutter_test.dart';
import 'dart:math' as Math;
void main() { void main() {
@ -10,6 +11,13 @@ void main() {
expect(root, closeTo(0, 0.1)); expect(root, closeTo(0, 0.1));
}); });
test("Solve (x-1000)^2", () {
Number f(Number x) => (x-1000)*(x-1000);
var root = functionSolver(f, hint: 10, step: 1, maxTries: 1000);
expect(root, closeTo(1000, 0.1));
});
test("Solve x^2 + 1", () { test("Solve x^2 + 1", () {
Number f(Number x) => x*x+1; Number f(Number x) => x*x+1;
@ -22,5 +30,28 @@ void main() {
expect( functionSolver(f, hint: 10, step: 1), closeTo(10, 0.1)); expect( functionSolver(f, hint: 10, step: 1), closeTo(10, 0.1));
}); });
test('Solve sqrt(x) = 2 => x = 4', () {
Number f(Number x) => Math.sqrt(x) - 2;
var root = functionSolver(f, hint: 5, step: 1);
expect(root, closeTo(4, 0.1));
});
test('Solve sin(x) = 0 near pi (hint 3)', () {
Number f(Number x) => Math.sin(x);
var root = functionSolver(f, hint: 3, step: 1);
expect(root, closeTo(Math.pi, 0.01));
});
test('Solve tan(x) = 1 => x = pi/4', () {
Number f(Number x) => Math.tan(x) - 1;
var root = functionSolver(f, hint: 0, step: 1);
expect(root, closeTo(Math.pi / 4, 0.01));
});
test('Solve exp(x) = 2 => x = ln(2)', () {
Number f(Number x) => Math.exp(x) - 2;
var root = functionSolver(f, hint: 1, step: 1);
expect(root, closeTo(Math.log(2), 0.01));
});
} }