Copy directives unit tests from #118

phpunit/directives/wp-bind.php

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+<?php
+/**
+ * wp-bind directive test.
+ */
+
+require_once __DIR__ . '/../../src/directives/wp-bind.php';
+require_once __DIR__ . '/../../src/directives/wp-context.php';
+
+require_once __DIR__ . '/../../src/html/index.php';
+
+/**
+ * Tests for the wp-bind directive.
+ *
+ * @group  directives
+ * @covers process_wp_bind
+ */
+class Tests_Directives_WpBind extends WP_UnitTestCase {
+	public function test_directive() {
+		$markup = '<img wp-bind:src="context.myblock.imageSource" />';
+		$tags = new WP_HTML_Processor( $markup );
+		$tags->next_tag();
+
+		$context_before = new WP_Directive_Context( array( 'myblock' => array( 'imageSource' => './wordpress.png' ) ) );
+		$context = $context_before;
+		process_wp_bind( $tags, $context );
+
+		$this->assertSame(
+			'<img src="./wordpress.png" wp-bind:src="context.myblock.imageSource" />',
+			$tags->get_updated_html()
+		);
+		// $this->assertSame( './wordpress.png', $tags->get_attribute( 'src' ) ); // FIXME: Broken; will be fixed by https://github.com/WordPress/gutenberg/pull/46598.
+		$this->assertSame( $context_before->get_context(), $context->get_context(), 'wp-bind directive changed context' );
+	}
+}

phpunit/directives/wp-context.php

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+<?php
+/**
+ * wp-context directive test.
+ */
+
+require_once __DIR__ . '/../../src/directives/wp-context.php';
+
+require_once __DIR__ . '/../../src/html/index.php';
+
+/**
+ * Tests for the wp-context directive.
+ *
+ * @group  directives
+ * @covers process_wp_context
+ */
+class Tests_Directives_WpContext extends WP_UnitTestCase {
+	public function test_directive_updates_context() {
+		$context = new WP_Directive_Context( array( 'myblock' => array( 'open' => false ) ) );
+
+		$markup = <<<EOF
+			<wp-context data='{ "myblock": { "open": true } }'>
+				<wp-context data='{ "myblock": { "open": false } }'>
+					<span>blah</span>
+				</wp-context>
+				<div class="context-true">Should be true again!</div>
+			</wp-context>
+EOF;
+		$tags = new WP_HTML_Tag_Processor( $markup );
+		$tags->next_tag();
+
+		process_wp_context( $tags, $context );
+
+		$this->assertSame( array( 'myblock' => array( 'open' => true ) ), $context->get_context() );
+		// TODO: Verify that markup is unchanged?
+
+		$tags->next_tag();
+		process_wp_context( $tags, $context );
+
+		$this->assertSame( array( 'myblock' => array( 'open' => false ) ), $context->get_context() );
+
+		$tags->next_tag(); // <span>
+		process_wp_context( $tags, $context );
+
+		$tags->next_tag( array( 'tag_closers' => 'visit' ) ); //  </span>
+
+		$tags->next_tag( array( 'tag_closers' => 'visit' ) ); //  </wp-context> for wp-context
+
+		process_wp_context( $tags, $context );
+
+		$tags->next_tag();
+		$this->assertSame( 'context-true', $tags->get_attribute(( 'class' ) ) );
+		process_wp_context( $tags, $context );
+
+		$this->assertSame( array( 'myblock' => array( 'open' => true ) ), $context->get_context() );
+
+		$tags->next_tag( array( 'tag_closers' => 'visit' ) ); //  </div>
+		process_wp_context( $tags, $context );
+
+		$tags->next_tag( array( 'tag_closers' => 'visit' ) ); //  </wp-context>
+		process_wp_context( $tags, $context );
+
+		$this->assertSame( array( 'myblock' => array( 'open' => false ) ), $context->get_context() );
+	}
+}

phpunit/directives/wp-show.php

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+<?php
+/**
+ * wp-show directive test.
+ */
+
+require_once __DIR__ . '/../../src/directives/wp-show.php';
+require_once __DIR__ . '/../../src/directives/wp-context.php';
+
+/**
+ * Tests for the wp-show directive.
+ *
+ * @group  directives
+ * @covers process_wp_show
+ */
+class Tests_Directives_WpShow extends WP_UnitTestCase {
+	public function test_directive_leaves_content_unchanged_if_when_is_true() {
+		$markup = <<<EOF
+			<wp-show when="context.myblock.open">
+				<div>I should be shown!</div>
+			</wp-show>
+EOF;
+		$tags = new WP_HTML_Processor( $markup );
+		$tags->next_tag();
+
+		$context_before = new WP_Directive_Context( array( 'myblock' => array( 'open' => true ) ) );
+		$context = $context_before;
+		process_wp_show( $tags, $context );
+
+		// TODO:
+		// $content = trim ( $tags->get_content_inside_balanced_tags() );
+		// $this->assertSame( '<div>I should be shown!</div>', $content );
+		$this->assertSame( $context_before->get_context(), $context->get_context(), 'wp-show directive changed context' );
+	}
+
+	public function test_directive_wraps_content_in_template_if_when_is_false() {
+		$markup = <<<EOF
+			<wp-show when="context.myblock.open">
+				<div>I should be shown!</div>
+			</wp-show>
+EOF;
+		$tags = new WP_HTML_Processor( $markup );
+		$tags->next_tag();
+
+		$context_before = new WP_Directive_Context( array( 'myblock' => array( 'open' => false ) ) );
+		$context = $context_before;
+		process_wp_show( $tags, $context );
+
+		// TODO:
+		// $content = trim( $tags->get_content_inside_balanced_tags() );
+		// $this->assertSame( '<template><div>I should be shown!</div></template>', $content );
+		$this->assertSame( $context_before->get_context(), $context->get_context(), 'wp-show directive changed context' );
+	}
+}