Preprocess transactional email newsletter

[MAILPOET-2286]

tests/unit/Newsletter/Renderer/PreprocessorTest.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace MailPoet\Test\Newsletter;
+
+use Codeception\Stub;
+use MailPoet\Newsletter\Renderer\Blocks\Renderer;
+use MailPoet\Newsletter\Renderer\Preprocessor;
+use MailPoet\WP\Functions;
+
+class PreprocessorTest extends \MailPoetUnitTest {
+
+  function testProcessWooCommerceHeadingBlock() {
+    $renderer = Stub::make(Renderer::class);
+    $wp = Stub::make(new Functions, [
+      'getOption' => function($name) {
+        if ($name === 'woocommerce_email_base_color')
+          return '{base_color}';
+        if ($name === 'woocommerce_email_text_color')
+          return '{text_color}';
+      },
+    ]);
+    $preprocessor = new Preprocessor($renderer, $wp);
+    expect($preprocessor->processBlock(['type' => 'woocommerceHeading']))->equals([[
+      'type' => 'container',
+      'orientation' => 'horizontal',
+      'styles' => [
+        'block' => ['backgroundColor' => '{base_color}'],
+      ],
+      'blocks' => [
+        [
+          'type' => 'container',
+          'orientation' => 'vertical',
+          'styles' => ['block' => ['backgroundColor' => 'transparent']],
+          'blocks' => [
+            [
+              'type' => 'text',
+              'text' => '<h1 style="color:{text_color};">[mailpet_woocommerce_heading_placeholder]</h1>',
+            ],
+          ],
+        ],
+      ],
+    ]]);
+  }
+
+  function testProcessWooCommerceContentBlock() {
+    $renderer = Stub::make(Renderer::class);
+    $preprocessor = new Preprocessor($renderer, new Functions);
+    expect($preprocessor->processBlock(['type' => 'woocommerceContent']))->equals([[
+      'type' => 'container',
+      'orientation' => 'horizontal',
+      'styles' => [
+        'block' => ['backgroundColor' => 'transparent'],
+      ],
+      'blocks' => [
+        [
+          'type' => 'container',
+          'orientation' => 'vertical',
+          'styles' => ['block' => ['backgroundColor' => 'transparent']],
+          'blocks' => [
+            [
+              'type' => 'text',
+              'text' => '[mailpet_woocommerce_content_placeholder]',
+            ],
+          ],
+        ],
+      ],
+    ]]);
+  }
+
+}