     lazy var attributedStringToTree = {
         return AttributedStringParser(customizer: pluginManager)
     }()
+    
+    func testThatRoundConversion(fromInputHTML inputHTML: String, resultsInOutputHTML expectedHTML: String) {
+        let attributedString = htmlConverter.attributedString(from: inputHTML)
+        let outputHtml = htmlConverter.html(from: attributedString)
+        
+        XCTAssertEqual(outputHtml, expectedHTML)
+    }
     
     // MARK: - Full Conversion
     

    /// Spawned from: https://github.com/wordpress-mobile/AztecEditor-iOS/pull/1116#issuecomment-449056392
    ///
    func testGutenpackAddsNewlineInVisualModeIfNeeded() {
        let html = """
<!-- wp:latestposts /-->


<!-- wp:separator --><hr class="wp-block-separator"><!-- /wp:separator -->
"""
        
        testThatRoundConversion(fromInputHTML: html, resultsInOutputHTML: expectedOutput)
    }
    
    // MARK: - Spacer Block
