diff --git a/tests/phpunit/tests/post/isPostTypeViewable.php b/tests/phpunit/tests/post/isPostTypeViewable.php
new file mode 100644
index 0000000000..17b3f7de7b
--- /dev/null
+++ b/tests/phpunit/tests/post/isPostTypeViewable.php
@@ -0,0 +1,74 @@
+<?php
+
+/**
+ * @group post
+ */
+class Tests_Post_IsPostTypeViewable extends WP_UnitTestCase {
+	public function test_should_return_false_for_non_publicly_queryable_types() {
+		register_post_type( 'wptests_pt', array(
+			'publicly_queryable' => false,
+			'_builtin' => false,
+			'public' => true,
+		) );
+
+		$pt = get_post_type_object( 'wptests_pt' );
+
+		$this->assertFalse( is_post_type_viewable( $pt ) );
+	}
+
+	public function test_should_return_true_for_publicly_queryable_types() {
+		register_post_type( 'wptests_pt', array(
+			'publicly_queryable' => true,
+			'_builtin' => false,
+			'public' => false,
+		) );
+
+		$pt = get_post_type_object( 'wptests_pt' );
+
+		$this->assertTrue( is_post_type_viewable( $pt ) );
+	}
+
+	public function test_should_return_false_for_builtin_nonpublic_types() {
+		register_post_type( 'wptests_pt', array(
+			'publicly_queryable' => false,
+			'_builtin' => true,
+			'public' => false,
+		) );
+
+		$pt = get_post_type_object( 'wptests_pt' );
+
+		$this->assertFalse( is_post_type_viewable( $pt ) );
+	}
+
+	public function test_should_return_false_for_nonbuiltin_public_types() {
+		register_post_type( 'wptests_pt', array(
+			'publicly_queryable' => false,
+			'_builtin' => false,
+			'public' => true,
+		) );
+
+		$pt = get_post_type_object( 'wptests_pt' );
+
+		$this->assertFalse( is_post_type_viewable( $pt ) );
+	}
+
+	public function test_should_return_true_for_builtin_public_types() {
+		register_post_type( 'wptests_pt', array(
+			'publicly_queryable' => false,
+			'_builtin' => true,
+			'public' => true,
+		) );
+
+		$pt = get_post_type_object( 'wptests_pt' );
+
+		$this->assertTrue( is_post_type_viewable( $pt ) );
+	}
+
+	public function test_postpage_should_be_viewable() {
+		$post = get_post_type_object( 'post' );
+		$this->assertTrue( is_post_type_viewable( $post ) );
+
+		$page = get_post_type_object( 'page' );
+		$this->assertTrue( is_post_type_viewable( $page ) );
+	}
+}