varias alteracoes

tests/Unit/SimulationTaxRuleExpressionTest.php

@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use App\Services\SimulationTaxRuleExpression;
+use InvalidArgumentException;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+
+final class SimulationTaxRuleExpressionTest extends TestCase
+{
+    #[Test]
+    public function it_evaluates_a_whitelisted_dag_with_exact_decimal_arithmetic_and_explicit_rounding(): void
+    {
+        $definition = $this->definition();
+        $result = (new SimulationTaxRuleExpression)->evaluate($definition, ['base' => '1234.56'], ['rate' => '0.16']);
+
+        self::assertSame('determinate', $result['status']);
+        self::assertSame('19753/100', $result['result']);
+        self::assertCount(4, $result['steps']);
+    }
+
+    #[Test]
+    public function it_reports_missing_values_as_indeterminate_without_defaults(): void
+    {
+        $result = (new SimulationTaxRuleExpression)->evaluate($this->definition(), [], []);
+
+        self::assertSame('indeterminate', $result['status']);
+        self::assertNull($result['result']);
+        self::assertSame(['input:base', 'parameter:rate'], $result['missing']);
+    }
+
+    #[Test]
+    public function it_rejects_cycles_unknown_operations_and_undeclared_fields(): void
+    {
+        $engine = new SimulationTaxRuleExpression;
+        $cycle = ['language' => 'investmoz.tax.v1', 'nodes' => ['a' => ['op' => 'add', 'args' => ['b', 'b']], 'b' => ['op' => 'add', 'args' => ['a', 'a']]], 'result' => 'a'];
+        $unknown = ['language' => 'investmoz.tax.v1', 'nodes' => ['a' => ['op' => 'execute', 'code' => 'x']], 'result' => 'a'];
+        $extra = ['language' => 'investmoz.tax.v1', 'nodes' => ['a' => ['op' => 'literal', 'value' => '1', 'formula' => 'x']], 'result' => 'a'];
+
+        foreach ([$cycle, $unknown, $extra] as $invalid) {
+            try {
+                $engine->validate($invalid);
+                self::fail('Invalid DSL was accepted.');
+            } catch (InvalidArgumentException) {
+                self::assertTrue(true);
+            }
+        }
+    }
+
+    /** @return array<string,mixed> */
+    private function definition(): array
+    {
+        return [
+            'language' => 'investmoz.tax.v1',
+            'nodes' => [
+                'base' => ['op' => 'input', 'key' => 'base'],
+                'rate' => ['op' => 'parameter', 'key' => 'rate'],
+                'raw' => ['op' => 'multiply', 'args' => ['base', 'rate']],
+                'tax' => ['op' => 'round', 'args' => ['raw'], 'scale' => 2, 'mode' => 'HALF_UP'],
+            ],
+            'result' => 'tax',
+        ];
+    }
+}