test: add XmlBuilderTest

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

tests/Unit/Xml/XmlBuilderTest.php

@@ -0,0 +1,104 @@
+<?php
+
+// SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+declare(strict_types=1);
+
+namespace LibreCodeCoop\NfsePHP\Tests\Unit\Xml;
+
+use LibreCodeCoop\NfsePHP\Dto\DpsData;
+use LibreCodeCoop\NfsePHP\Tests\TestCase;
+use LibreCodeCoop\NfsePHP\Xml\XmlBuilder;
+
+/**
+ * @covers \LibreCodeCoop\NfsePHP\Xml\XmlBuilder
+ */
+class XmlBuilderTest extends TestCase
+{
+    private XmlBuilder $builder;
+
+    protected function setUp(): void
+    {
+        $this->builder = new XmlBuilder();
+    }
+
+    public function testBuildDpsReturnsWellFormedXml(): void
+    {
+        $dps = $this->makeDps();
+        $xml = $this->builder->buildDps($dps);
+
+        self::assertNotEmpty($xml);
+
+        $doc = new \DOMDocument();
+        self::assertTrue($doc->loadXML($xml), 'Generated XML must be valid XML');
+    }
+
+    public function testBuildDpsContainsCnpjPrestador(): void
+    {
+        $dps = $this->makeDps(cnpjPrestador: '29842527000145');
+        $xml = $this->builder->buildDps($dps);
+
+        self::assertStringContainsString('29842527000145', $xml);
+    }
+
+    public function testBuildDpsContainsMunicipioIbge(): void
+    {
+        $dps = $this->makeDps(municipioIbge: '3303302');
+        $xml = $this->builder->buildDps($dps);
+
+        self::assertStringContainsString('3303302', $xml);
+    }
+
+    public function testBuildDpsContainsValorServico(): void
+    {
+        $dps = $this->makeDps(valorServico: '1500.00');
+        $xml = $this->builder->buildDps($dps);
+
+        self::assertStringContainsString('1500.00', $xml);
+    }
+
+    public function testDiscriminacaoIsXmlEscaped(): void
+    {
+        $dps = $this->makeDps(discriminacao: 'Serviço de <consultoria> & TI');
+        $xml = $this->builder->buildDps($dps);
+
+        // The raw characters must NOT appear unescaped
+        self::assertStringNotContainsString('<consultoria>', $xml);
+        self::assertStringContainsString('&lt;consultoria&gt;', $xml);
+    }
+
+    public function testIssRetidoSetsTribCode(): void
+    {
+        $dpsRetido  = $this->makeDps(issRetido: true);
+        $dpsProprio = $this->makeDps(issRetido: false);
+
+        $xmlRetido  = $this->builder->buildDps($dpsRetido);
+        $xmlProprio = $this->builder->buildDps($dpsProprio);
+
+        self::assertStringContainsString('<tribISSQN>2</tribISSQN>', $xmlRetido);
+        self::assertStringContainsString('<tribISSQN>1</tribISSQN>', $xmlProprio);
+    }
+
+    // -------------------------------------------------------------------------
+
+    private function makeDps(
+        string $cnpjPrestador = '29842527000145',
+        string $municipioIbge = '3303302',
+        string $itemListaServico = '0107',
+        string $valorServico = '1000.00',
+        string $aliquota = '5.00',
+        string $discriminacao = 'Consultoria em TI',
+        bool $issRetido = false,
+    ): DpsData {
+        return new DpsData(
+            cnpjPrestador:   $cnpjPrestador,
+            municipioIbge:   $municipioIbge,
+            itemListaServico: $itemListaServico,
+            valorServico:    $valorServico,
+            aliquota:        $aliquota,
+            discriminacao:   $discriminacao,
+            issRetido:       $issRetido,
+        );
+    }
+}