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src/test/java/com/imprimelibros/erp/verificationEmailTest.java

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+package com.imprimelibros.erp;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.nio.charset.StandardCharsets;
+import java.time.Year;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.support.ResourceBundleMessageSource;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.util.StreamUtils;
+import org.thymeleaf.context.Context;
+import org.thymeleaf.spring6.SpringTemplateEngine;
+import org.thymeleaf.templatemode.TemplateMode;
+import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
+import org.springframework.boot.test.context.SpringBootTest;
+
+import com.imprimelibros.erp.common.email.EmailService;
+
+@SpringBootTest
+public class verificationEmailTest {
+
+    @Autowired
+    private EmailService emailService;
+
+
+    private SpringTemplateEngine buildEngineForTests() {
+        ClassLoaderTemplateResolver resolver = new ClassLoaderTemplateResolver();
+        resolver.setPrefix("templates/");
+        resolver.setSuffix(".html");
+        resolver.setTemplateMode(TemplateMode.HTML);
+        resolver.setCharacterEncoding("UTF-8");
+        resolver.setCacheable(false);
+
+        // MessageSource para tests (apunta a tus ficheros de la carpeta i18n)
+        ResourceBundleMessageSource ms = new ResourceBundleMessageSource();
+        ms.setBasenames(
+                "i18n/app",
+                "i18n/auth",
+                "i18n/email", // <-- imprescindible para las claves email.*
+                "i18n/login",
+                "i18n/margenesPresupuesto",
+                "i18n/presupuesto",
+                "i18n/users",
+                "i18n/validation");
+        ms.setDefaultEncoding("UTF-8");
+        ms.setFallbackToSystemLocale(false);
+
+        SpringTemplateEngine engine = new SpringTemplateEngine();
+        engine.setTemplateResolver(resolver);
+        engine.setTemplateEngineMessageSource(ms); // <-- clave
+
+        return engine;
+    }
+
+    private String readClasspath(String path) throws Exception {
+        ClassPathResource res = new ClassPathResource(path);
+        return StreamUtils.copyToString(res.getInputStream(), StandardCharsets.UTF_8);
+    }
+
+    @Test
+    void render_verify_email_should_include_content_and_white_card() throws Exception {
+        SpringTemplateEngine engine = buildEngineForTests();
+
+        Locale locale = Locale.forLanguageTag("es-ES");
+        Context ctx = new Context(locale);
+        String verifyUrl = "https://imprimelibros.com/verify?token=TESTTOKEN";
+        ctx.setVariable("subject", "Verifica tu correo");
+        ctx.setVariable("companyName", "ImprimeLibros");
+        ctx.setVariable("year", Year.now().getValue());
+        ctx.setVariable("fullName", "Juan Pérez");
+        ctx.setVariable("verifyUrl", verifyUrl);
+        ctx.setVariable("minutes", 60);
+
+        // CSS embebido para el test (si lo usas)
+        String emailCss = readClasspath("static/assets/css/email.css");
+        ctx.setVariable("emailCss", emailCss);
+
+        // === Render ===
+        String html = engine.process("imprimelibros/email/verify", ctx);
+
+        // Vuelca siempre el HTML para inspección
+        File outDir = new File("target/email-test");
+        outDir.mkdirs();
+        File out = new File(outDir, "verify.html");
+        try (FileOutputStream fos = new FileOutputStream(out)) {
+            fos.write(html.getBytes(StandardCharsets.UTF_8));
+        }
+        System.out.println("📧 HTML generado en: " + out.getAbsolutePath());
+
+        // === Asserts robustos (sin depender de traducciones) ===
+
+        // 1) El slot se ha reemplazado (aparece la celda y hay contenido dentro)
+        assertThat(html)
+                .as("Debe existir la celda del contenido")
+                .contains("<td class=\"email-content\"");
+        assertThat(html.replaceAll("\\s+", " "))
+                .as("El fragmento debe inyectar párrafos dentro del slot")
+                .containsPattern("<td class=\\\"email-content\\\"[^>]*>.*?<p>.*?</p>.*?</td>");
+
+        // 2) Debe aparecer la URL del botón de verificación
+        assertThat(html).as("El verifyUrl debe estar inyectado").contains(verifyUrl);
+
+        // 3) Debe existir un enlace con clase 'btn' (el botón)
+        assertThat(html).as("Debe existir el botón con clase .btn").contains("<a ", "class=\"btn");
+
+        // 4) Fondos (wrapper gris claro y tarjeta blanca) con bgcolor y/o inline
+        assertThat(html).as("Wrapper debe tener fondo claro").contains("bgcolor=\"#f5f7fb\"");
+        assertThat(html).as("Tarjeta debe tener fondo blanco").contains("bgcolor=\"#ffffff\"");
+
+        // 5) Logo inline presente
+        assertThat(html).as("Logo CID debe estar").contains("cid:logo");
+
+        assertThat(html).doesNotContain("??email."); // sin claves sin resolver
+    }
+
+    @Test
+    void send_verification_email_live() {
+        // Lee el destinatario del entorno para no hardcodearlo ni spamear
+        String to = System.getenv().getOrDefault("MAIL_TO", "jaimejimenezortega@gmail.com");
+        String verifyUrl = "https://imprimelibros.com/verify?token=LIVE_TEST";
+        Locale locale = Locale.forLanguageTag("es-ES");
+
+        // Si no lanza excepción, damos el test por OK
+        emailService.sendVerificationEmail(to, "Usuario", verifyUrl, locale);
+    }
+
+}