diff --git a/composer.json b/composer.json
index 1c47704..1d3d032 100644
--- a/composer.json
+++ b/composer.json
@@ -24,6 +24,11 @@
 			"Gt\\DomTemplate\\Test\\": "./test/phpunit"
 		}
 	},
+	"config": {
+		"platform": {
+			"php": "8.2.0"
+		}
+	},
 
 	"scripts": {
 		"phpunit": "vendor/bin/phpunit --configuration phpunit.xml",
diff --git a/composer.lock b/composer.lock
index a45151f..2718da4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,30 +4,32 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "65c2a4683509c023e7a1a76aeaeb81a6",
+    "content-hash": "aa5f6152b5c43785a49c393cde70b638",
     "packages": [
         {
             "name": "phpgt/cssxpath",
-            "version": "v1.4.0",
+            "version": "v1.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpgt/CssXPath.git",
-                "reference": "008aaf7f381e2396590fc53830f4a8ad9f517c7f"
+                "reference": "577781742ff61742332740d50f35f2b6cc037e2a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpgt/CssXPath/zipball/008aaf7f381e2396590fc53830f4a8ad9f517c7f",
-                "reference": "008aaf7f381e2396590fc53830f4a8ad9f517c7f",
+                "url": "https://api.github.com/repos/phpgt/CssXPath/zipball/577781742ff61742332740d50f35f2b6cc037e2a",
+                "reference": "577781742ff61742332740d50f35f2b6cc037e2a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=8.0"
+                "php": ">=8.2"
             },
             "require-dev": {
                 "ext-dom": "*",
                 "ext-libxml": "*",
+                "phpmd/phpmd": "^2.15",
                 "phpstan/phpstan": "^2.1",
-                "phpunit/phpunit": "^9.6"
+                "phpunit/phpunit": "^10.5",
+                "squizlabs/php_codesniffer": "^4.0"
             },
             "type": "library",
             "autoload": {
@@ -50,7 +52,7 @@
             "description": "Convert CSS selectors to XPath queries.",
             "support": {
                 "issues": "https://github.com/phpgt/CssXPath/issues",
-                "source": "https://github.com/phpgt/CssXPath/tree/v1.4.0"
+                "source": "https://github.com/phpgt/CssXPath/tree/v1.5.0"
             },
             "funding": [
                 {
@@ -58,7 +60,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-10-24T09:11:43+00:00"
+            "time": "2026-03-16T12:14:14+00:00"
         },
         {
             "name": "phpgt/dom",
@@ -796,11 +798,11 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.40",
+            "version": "2.1.46",
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
-                "reference": "9b2c7aeb83a75d8680ea5e7c9b7fca88052b766b",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/a193923fc2d6325ef4e741cf3af8c3e8f54dbf25",
+                "reference": "a193923fc2d6325ef4e741cf3af8c3e8f54dbf25",
                 "shasum": ""
             },
             "require": {
@@ -845,7 +847,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2026-02-23T15:04:35+00:00"
+            "time": "2026-04-01T09:25:14+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2526,16 +2528,16 @@
         },
         {
             "name": "symfony/config",
-            "version": "v7.4.7",
+            "version": "v7.4.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "6c17162555bfb58957a55bb0e43e00035b6ae3d5"
+                "reference": "2d19dde43fa2ff720b9a40763ace7226594f503b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/6c17162555bfb58957a55bb0e43e00035b6ae3d5",
-                "reference": "6c17162555bfb58957a55bb0e43e00035b6ae3d5",
+                "url": "https://api.github.com/repos/symfony/config/zipball/2d19dde43fa2ff720b9a40763ace7226594f503b",
+                "reference": "2d19dde43fa2ff720b9a40763ace7226594f503b",
                 "shasum": ""
             },
             "require": {
@@ -2581,7 +2583,7 @@
             "description": "Helps you find, load, combine, autofill and validate configuration values of any kind",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/config/tree/v7.4.7"
+                "source": "https://github.com/symfony/config/tree/v7.4.8"
             },
             "funding": [
                 {
@@ -2601,20 +2603,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-03-06T10:41:14+00:00"
+            "time": "2026-03-24T13:12:05+00:00"
         },
         {
             "name": "symfony/dependency-injection",
-            "version": "v7.4.7",
+            "version": "v7.4.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/dependency-injection.git",
-                "reference": "0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db"
+                "reference": "f7025fd7b687c240426562f86ada06a93b1e771d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db",
-                "reference": "0f651e58f4917fb0e2cd261ccbfe3d71e6e0f5db",
+                "url": "https://api.github.com/repos/symfony/dependency-injection/zipball/f7025fd7b687c240426562f86ada06a93b1e771d",
+                "reference": "f7025fd7b687c240426562f86ada06a93b1e771d",
                 "shasum": ""
             },
             "require": {
@@ -2665,7 +2667,7 @@
             "description": "Allows you to standardize and centralize the way objects are constructed in your application",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/dependency-injection/tree/v7.4.7"
+                "source": "https://github.com/symfony/dependency-injection/tree/v7.4.8"
             },
             "funding": [
                 {
@@ -2685,7 +2687,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-03-03T07:48:48+00:00"
+            "time": "2026-03-31T06:50:29+00:00"
         },
         {
             "name": "symfony/deprecation-contracts",
@@ -2756,16 +2758,16 @@
         },
         {
             "name": "symfony/filesystem",
-            "version": "v7.4.6",
+            "version": "v7.4.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "3ebc794fa5315e59fd122561623c2e2e4280538e"
+                "reference": "58b9790d12f9670b7f53a1c1738febd3108970a5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/3ebc794fa5315e59fd122561623c2e2e4280538e",
-                "reference": "3ebc794fa5315e59fd122561623c2e2e4280538e",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/58b9790d12f9670b7f53a1c1738febd3108970a5",
+                "reference": "58b9790d12f9670b7f53a1c1738febd3108970a5",
                 "shasum": ""
             },
             "require": {
@@ -2802,7 +2804,7 @@
             "description": "Provides basic utilities for the filesystem",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/filesystem/tree/v7.4.6"
+                "source": "https://github.com/symfony/filesystem/tree/v7.4.8"
             },
             "funding": [
                 {
@@ -2822,7 +2824,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-02-25T16:50:00+00:00"
+            "time": "2026-03-24T13:12:05+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
@@ -3081,16 +3083,16 @@
         },
         {
             "name": "symfony/var-exporter",
-            "version": "v7.4.0",
+            "version": "v7.4.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/var-exporter.git",
-                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f"
+                "reference": "398907e89a2a56fe426f7955c6fa943ec0c77225"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/03a60f169c79a28513a78c967316fbc8bf17816f",
-                "reference": "03a60f169c79a28513a78c967316fbc8bf17816f",
+                "url": "https://api.github.com/repos/symfony/var-exporter/zipball/398907e89a2a56fe426f7955c6fa943ec0c77225",
+                "reference": "398907e89a2a56fe426f7955c6fa943ec0c77225",
                 "shasum": ""
             },
             "require": {
@@ -3138,7 +3140,7 @@
                 "serialize"
             ],
             "support": {
-                "source": "https://github.com/symfony/var-exporter/tree/v7.4.0"
+                "source": "https://github.com/symfony/var-exporter/tree/v7.4.8"
             },
             "funding": [
                 {
@@ -3158,7 +3160,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2025-09-11T10:15:23+00:00"
+            "time": "2026-03-24T13:12:05+00:00"
         },
         {
             "name": "theseer/tokenizer",
@@ -3221,5 +3223,8 @@
         "ext-dom": "*"
     },
     "platform-dev": {},
+    "platform-overrides": {
+        "php": "8.2.0"
+    },
     "plugin-api-version": "2.9.0"
 }
diff --git a/src/DocumentBinder.php b/src/DocumentBinder.php
index e39b8a5..ae4e8e1 100644
--- a/src/DocumentBinder.php
+++ b/src/DocumentBinder.php
@@ -12,6 +12,8 @@ class DocumentBinder extends Binder {
 	protected ListBinder $listBinder;
 	protected ListElementCollection $templateCollection;
 	protected BindableCache $bindableCache;
+	private ?string $debugSource = null;
+	private int $debugSourceDepth = 0;
 
 	public function __construct(
 		protected readonly Document $document,
@@ -41,11 +43,13 @@ public function bindValue(
 		mixed $value,
 		null|string|Element $context = null
 	):void {
-		if(is_string($context)) {
-			$context = $this->stringToContext($context);
-		}
+		$this->withDebugSource(function()use($value, $context):void {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		$this->bind(null, $value, $context);
+			$this->bind(null, $value, $context);
+		});
 	}
 
 	/**
@@ -57,11 +61,13 @@ public function bindKeyValue(
 		mixed $value,
 		null|Element|string $context = null,
 	):void {
-		if(is_string($context)) {
-			$context = $this->stringToContext($context);
-		}
+		$this->withDebugSource(function()use($key, $value, $context):void {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		$this->bind($key, $value, $context);
+			$this->bind($key, $value, $context);
+		});
 	}
 
 	/**
@@ -72,39 +78,41 @@ public function bindData(
 		mixed $kvp,
 		null|string|Element $context = null
 	):void {
-		if(is_string($context)) {
-			$context = $this->stringToContext($context);
-		}
+		$this->withDebugSource(function()use($kvp, $context):void {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		if($this->isIndexedArray($kvp)) {
-			throw new IncompatibleBindDataException(
-				"bindData is only compatible with key-value-pair data, "
-				. "but it was passed an indexed array."
-			);
-		}
+			if($this->isIndexedArray($kvp)) {
+				throw new IncompatibleBindDataException(
+					"bindData is only compatible with key-value-pair data, "
+					. "but it was passed an indexed array."
+				);
+			}
 
-		if(is_object($kvp) && method_exists($kvp, "asArray")) {
-			$kvp = $kvp->asArray();
-		}
+			if(is_object($kvp) && method_exists($kvp, "asArray")) {
+				$kvp = $kvp->asArray();
+			}
 
 // The $kvp object may be both an object with its own key-value-pairs and
 // an iterable object. We can perform the two bind operations here.
 
-		$object = null;
-		if(is_object($kvp)) {
-			if($this->bindableCache->isBindable($kvp)) {
-				$object = $kvp;
-				$kvp = $this->bindableCache->convertToKvp($kvp);
+			$object = null;
+			if(is_object($kvp)) {
+				if($this->bindableCache->isBindable($kvp)) {
+					$object = $kvp;
+					$kvp = $this->bindableCache->convertToKvp($kvp);
+				}
 			}
-		}
 
-		foreach($kvp ?? [] as $key => $value) {
-			$this->bindKeyValue($key, $value, $context);
-		}
+			foreach($kvp ?? [] as $key => $value) {
+				$this->bindKeyValue($key, $value, $context);
+			}
 
-		if(is_iterable($object)) {
-			$this->listBinder->bindListData($object, $context ?? $this->document);
-		}
+			if(is_iterable($object)) {
+				$this->listBinder->bindListData($object, $context ?? $this->document);
+			}
+		});
 	}
 
 	public function bindTable(
@@ -112,15 +120,18 @@ public function bindTable(
 		null|string|Element $context = null,
 		?string $bindKey = null
 	):void {
-		if(is_string($context)) {
-			$context = $this->stringToContext($context);
-		}
+		$this->withDebugSource(function()use($tableData, $context, $bindKey):void {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		$this->tableBinder->bindTableData(
-			$tableData,
-			$context ?? $this->document,
-			$bindKey
-		);
+			$this->syncDebugSource();
+			$this->tableBinder->bindTableData(
+				$tableData,
+				$context ?? $this->document,
+				$bindKey
+			);
+		});
 	}
 
 	/**
@@ -131,15 +142,18 @@ public function bindList(
 		null|string|Element $context = null,
 		?string $templateName = null
 	):int {
-		if(is_string($context)) {
-			$context = $this->stringToContext($context);
-		}
+		return $this->withDebugSource(function()use($listData, $context, $templateName):int {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		if(!$context) {
-			$context = $this->document;
-		}
+			if(!$context) {
+				$context = $this->document;
+			}
 
-		return $this->listBinder->bindListData($listData, $context, $templateName);
+			$this->syncDebugSource();
+			return $this->listBinder->bindListData($listData, $context, $templateName);
+		});
 	}
 
 	/** @param iterable<int, mixed> $listData */
@@ -149,16 +163,23 @@ public function bindListCallback(
 		null|string|Element $context = null,
 		?string $templateName = null
 	):int {
-		if(!$context) {
-			$context = $this->document;
-		}
+		return $this->withDebugSource(function()use($listData, $callback, $context, $templateName):int {
+			if(is_string($context)) {
+				$context = $this->stringToContext($context);
+			}
 
-		return $this->listBinder->bindListData(
-			$listData,
-			$context,
-			$templateName,
-			$callback
-		);
+			if(!$context) {
+				$context = $this->document;
+			}
+
+			$this->syncDebugSource();
+			return $this->listBinder->bindListData(
+				$listData,
+				$context,
+				$templateName,
+				$callback
+			);
+		});
 	}
 
 	public function cleanupDocument():void {
@@ -177,6 +198,10 @@ public function cleanupDocument():void {
 			}
 
 			$ownerElement = $item->ownerElement;
+			if($item->name === "data-bind-debug" && $item->value !== "") {
+				continue;
+			}
+
 			if($ownerElement->hasAttribute("data-element")) {
 				if(!$ownerElement->hasAttribute("data-bound")) {
 					array_push($elementsToRemove, $ownerElement);
@@ -212,6 +237,7 @@ protected function bind(
 			$value = call_user_func($value);
 		}
 
+		$this->syncDebugSource();
 		$this->elementBinder->bind($key, $value, $context);
 	}
 
@@ -232,4 +258,62 @@ private function isIndexedArray(mixed $data):bool {
 	protected function stringToContext(string $context):Element {
 		return $this->document->querySelector($context);
 	}
+
+	private function syncDebugSource():void {
+		$this->elementBinder->setDebugSource($this->debugSource);
+		$this->tableBinder->setDebugSource($this->debugSource);
+	}
+
+	private function withDebugSource(callable $callback):mixed {
+		$isRootBindingCall = $this->debugSourceDepth === 0;
+		if($isRootBindingCall) {
+			$this->debugSource = $this->resolveDebugSource();
+		}
+
+		$this->debugSourceDepth++;
+		try {
+			return $callback();
+		}
+		finally {
+			$this->debugSourceDepth--;
+			if($this->debugSourceDepth === 0) {
+				$this->debugSource = null;
+				if(isset($this->elementBinder)) {
+					$this->elementBinder->setDebugSource(null);
+				}
+			}
+		}
+	}
+
+	private function resolveDebugSource():string {
+		$debugSource = "unknown:0";
+		foreach(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS) as $frame) {
+			$file = $frame["file"] ?? null;
+			$line = $frame["line"] ?? null;
+			if($file && $line) {
+				$debugSource = $this->normalizeDebugFile($file) . ":" . $line;
+				if(str_starts_with($debugSource, "src/")
+				|| str_starts_with($debugSource, "vendor/")) {
+					continue;
+				}
+
+				break;
+			}
+		}
+
+		return $debugSource;
+	}
+
+	private function normalizeDebugFile(string $file):string {
+		$cwd = getcwd();
+		if($cwd) {
+			$cwd = rtrim(str_replace("\\", "/", $cwd), "/") . "/";
+			$file = str_replace("\\", "/", $file);
+			if(str_starts_with($file, $cwd)) {
+				return substr($file, strlen($cwd));
+			}
+		}
+
+		return $file;
+	}
 }
diff --git a/src/ElementBinder.php b/src/ElementBinder.php
index 5dc644e..0f2ee89 100644
--- a/src/ElementBinder.php
+++ b/src/ElementBinder.php
@@ -8,6 +8,10 @@ class ElementBinder {
 	private HTMLAttributeCollection $htmlAttributeCollection;
 	private PlaceholderBinder $placeholderBinder;
 
+	public function setDebugSource(?string $debugSource):void {
+		$this->htmlAttributeBinder->setDebugSource($debugSource);
+	}
+
 	public function setDependencies(
 		HTMLAttributeBinder $htmlAttributeBinder,
 		HTMLAttributeCollection $htmlAttributeCollection,
diff --git a/src/HTMLAttributeBinder.php b/src/HTMLAttributeBinder.php
index 2750e8a..dae7473 100644
--- a/src/HTMLAttributeBinder.php
+++ b/src/HTMLAttributeBinder.php
@@ -9,12 +9,17 @@
 class HTMLAttributeBinder {
 	private ListBinder $listBinder;
 	private TableBinder $tableBinder;
+	private ?string $debugSource = null;
 
 	public function setDependencies(ListBinder $listBinder, TableBinder $tableBinder):void {
 		$this->listBinder = $listBinder;
 		$this->tableBinder = $tableBinder;
 	}
 
+	public function setDebugSource(?string $debugSource):void {
+		$this->debugSource = $debugSource;
+	}
+
 	public function bind(
 		?string $key,
 		mixed $value,
@@ -49,6 +54,7 @@ public function bind(
 				$bindValue,
 				$modifier,
 			);
+			$this->appendDebugInfo($element, $bindProperty);
 			$element->setAttribute("data-bound", "");
 			if(!$attribute->ownerElement->hasAttribute("data-rebind")) {
 				$attributesToRemove[] = $attributeName;
@@ -112,7 +118,27 @@ private function markBoundElement(
 	}
 
 	private function shouldHandleAttribute(string $attributeName):bool {
-		return str_starts_with($attributeName, "data-bind");
+		return str_starts_with($attributeName, "data-bind:")
+			|| $attributeName === "data-bind";
+	}
+
+	private function appendDebugInfo(Element $element, string $bindProperty):void {
+		if(!$this->debugSource || !$this->isDebugEnabled($element)) {
+			return;
+		}
+
+		$entry = $bindProperty . "=" . $this->debugSource;
+		$debugAttribute = trim($element->getAttribute("data-bind-debug") ?? "");
+		if($debugAttribute === "") {
+			$element->setAttribute("data-bind-debug", $entry);
+			return;
+		}
+
+		$element->setAttribute("data-bind-debug", $debugAttribute . "," . $entry);
+	}
+
+	private function isDebugEnabled(Element $element):bool {
+		return !is_null($element->closest("[data-bind-debug]"));
 	}
 
 	private function getBindProperty(
diff --git a/src/TableBinder.php b/src/TableBinder.php
index a38ab31..9e38ef5 100644
--- a/src/TableBinder.php
+++ b/src/TableBinder.php
@@ -22,6 +22,7 @@ class TableBinder {
 	private HTMLAttributeBinder $htmlAttributeBinder;
 	private HTMLAttributeCollection $htmlAttributeCollection;
 	private PlaceholderBinder $placeholderBinder;
+	private ?string $debugSource = null;
 
 	public function setDependencies(
 		ListBinder $listBinder,
@@ -39,12 +40,16 @@ public function setDependencies(
 		$this->placeholderBinder = $placeholderBinder;
 	}
 
+	public function setDebugSource(?string $debugSource):void {
+		$this->debugSource = $debugSource;
+	}
+
 	/**
 	 * @param BindTableDataInput $tableData
 	 * @param Element $context
 	 */
 	public function bindTableData(
-		array $tableData,
+		iterable $tableData,
 		Document|Element $context,
 		?string $bindKey = null
 	):void {
@@ -99,7 +104,15 @@ private function collectTables(Element $context):array {
 	private function tableMatchesBindKey(Element $table, ?string $bindKey):bool {
 		$dataBindTableElement = $table;
 		if(!$dataBindTableElement->hasAttribute("data-bind:table")) {
-			$dataBindTableElement = $table->closest("[data-bind:table]") ?? $table;
+			$parent = $table->parentElement;
+			while($parent) {
+				if($parent->hasAttribute("data-bind:table")) {
+					$dataBindTableElement = $parent;
+					break;
+				}
+
+				$parent = $parent->parentElement;
+			}
 		}
 
 		return $dataBindTableElement->getAttribute("data-bind:table") == $bindKey;
@@ -139,6 +152,7 @@ private function resolveAllowedHeaders(Element $table, array $headerRow):array {
 		foreach($headerRow as $headerValue) {
 			$headerCell = $tableHeadRow->insertCell();
 			$headerCell->textContent = $headerValue;
+			$this->appendDebugInfo($headerCell, "text");
 		}
 
 		return $headerRow;
@@ -197,6 +211,7 @@ private function populateTableCells(
 			if(!$cellElement->parentElement) {
 				$tableRow->appendChild($cellElement);
 			}
+			$this->appendDebugInfo($cellElement, "text");
 		}
 	}
 
@@ -519,11 +534,13 @@ private function initBinders(Document|Element $context):void {
 		}
 
 		$this->htmlAttributeBinder->setDependencies($this->listBinder, $this);
+		$this->htmlAttributeBinder->setDebugSource($this->debugSource);
 		$this->elementBinder->setDependencies(
 			$this->htmlAttributeBinder,
 			$this->htmlAttributeCollection,
 			$this->placeholderBinder,
 		);
+		$this->elementBinder->setDebugSource($this->debugSource);
 		$this->listBinder->setDependencies(
 			$this->elementBinder,
 			$this->templateCollection,
@@ -531,4 +548,31 @@ private function initBinders(Document|Element $context):void {
 			$this,
 		);
 	}
+
+	private function appendDebugInfo(Element $element, string $bindProperty):void {
+		if(!$this->debugSource) {
+			return;
+		}
+
+		$currentElement = $element;
+		while($currentElement) {
+			if($currentElement->hasAttribute("data-bind-debug")) {
+				break;
+			}
+
+			$currentElement = $currentElement->parentElement;
+		}
+		if(!$currentElement) {
+			return;
+		}
+
+		$entry = $bindProperty . "=" . $this->debugSource;
+		$current = trim($element->getAttribute("data-bind-debug") ?? "");
+		$element->setAttribute(
+			"data-bind-debug",
+			$current === ""
+				? $entry
+				: $current . "," . $entry
+		);
+	}
 }
diff --git a/test/phpunit/ComponentExpanderTest.php b/test/phpunit/ComponentExpanderTest.php
index 9658e97..9f588e5 100644
--- a/test/phpunit/ComponentExpanderTest.php
+++ b/test/phpunit/ComponentExpanderTest.php
@@ -50,8 +50,7 @@ public function testExpand_empty():void {
 				"empty-component" => "",
 			]
 		);
-		/** @noinspection HtmlRequiredLangAttribute */
-		$document = new HTMLDocument("<!doctype html><html><body><empty-component /></body></html>");
+		$document = new HTMLDocument(HTMLPageContent::HTML_EMPTY_COMPONENT);
 		$sut = new ComponentExpander($document, $partialContent);
 		$expandedElements = $sut->expand();
 		self::assertCount(1, $expandedElements);
diff --git a/test/phpunit/DocumentBinderTest.php b/test/phpunit/DocumentBinderTest.php
index 1c3c140..4a6b499 100644
--- a/test/phpunit/DocumentBinderTest.php
+++ b/test/phpunit/DocumentBinderTest.php
@@ -164,6 +164,100 @@ public function testBindKeyValue():void {
 		self::assertSame("This should bind", $document->querySelector("#container3 p span")->textContent);
 	}
 
+	public function testBindKeyValue_dataBindDebugOnElement():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_SINGLE_NAME);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindNameWithDebug($sut);
+
+		$paragraph = $document->querySelector("p");
+		self::assertSame("Cody", $paragraph->textContent);
+		self::assertSame("text=$expectedDebug", $paragraph->getAttribute("data-bind-debug"));
+	}
+
+	public function testBindKeyValue_dataBindDebugOutsideProjectUsesAbsolutePath():void {
+		$tempFile = tempnam(sys_get_temp_dir(), "domtemplate-debug-");
+		file_put_contents($tempFile, <<<'PHP'
+		<?php
+		return function(\Gt\DomTemplate\DocumentBinder $binder): void {
+			$binder->bindKeyValue("name", "Cody");
+		};
+		PHP);
+
+		try {
+			$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_SINGLE_NAME);
+			$sut = new DocumentBinder($document);
+			$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+			$callback = require $tempFile;
+			$callback($sut);
+
+			$debugAttribute = $document->querySelector("p")->getAttribute("data-bind-debug");
+			self::assertMatchesRegularExpression(
+				"/^text=" . preg_quote(str_replace("\\", "/", $tempFile), "/") . ":\d+$/",
+				$debugAttribute
+			);
+		}
+		finally {
+			unlink($tempFile);
+		}
+	}
+
+	public function testBindKeyValue_dataBindDebugSkipsVendorCallerFrames():void {
+		$vendorFixtureDir = __DIR__ . "/../../vendor/.codex-fixtures";
+		if(!is_dir($vendorFixtureDir)) {
+			mkdir($vendorFixtureDir, 0777, true);
+		}
+
+		$wrapperFile = $vendorFixtureDir . "/bind-debug-wrapper.php";
+		file_put_contents($wrapperFile, <<<'PHP'
+<?php
+return function(\Gt\DomTemplate\DocumentBinder $binder): void {
+	$binder->bindKeyValue("name", "Cody");
+};
+PHP);
+
+		try {
+			$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_SINGLE_NAME);
+			$sut = new DocumentBinder($document);
+			$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+			$expectedLine = __LINE__ + 1;
+			(require $wrapperFile)($sut);
+
+			self::assertSame(
+				"text=test/phpunit/DocumentBinderTest.php:$expectedLine",
+				$document->querySelector("p")->getAttribute("data-bind-debug")
+			);
+		}
+		finally {
+			unlink($wrapperFile);
+			@rmdir($vendorFixtureDir);
+		}
+	}
+
+	public function testBindData_dataBindDebugInheritedByDescendants():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_PROFILE);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindProfileWithDebug($sut);
+
+		$heading = $document->querySelector("#profile h1");
+		$link = $document->querySelector("#profile a");
+		$outside = $document->querySelector("aside span");
+		self::assertSame("Cody", $heading->textContent);
+		self::assertSame("text=$expectedDebug", $heading->getAttribute("data-bind-debug"));
+		self::assertSame("mailto:cody@example.com", $link->getAttribute("href"));
+		self::assertSame("mailto:cody@example.com", $link->textContent);
+		self::assertSame(
+			"text=$expectedDebug,href=$expectedDebug",
+			$link->getAttribute("data-bind-debug")
+		);
+		self::assertFalse($outside->hasAttribute("data-bind-debug"));
+	}
+
 	public function testBindKeyValue_null():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_MULTIPLE_NESTED_ELEMENTS);
 		$sut = new DocumentBinder($document);
@@ -542,6 +636,21 @@ public function testBindTable_stringContext():void {
 		self::assertSame("Staff Liason Officer", $table->rows[2]->cells[1]->textContent);
 	}
 
+	public function testBindTable_dataBindDebug():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_TABLE);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindTableWithDebug($sut);
+		$sut->cleanupDocument();
+
+		$cells = $document->querySelectorAll("tbody td");
+		self::assertCount(2, $cells);
+		foreach($cells as $cell) {
+			self::assertSame("text=$expectedDebug", $cell->getAttribute("data-bind-debug"));
+		}
+	}
+
 	public function testBindTable_withNullData():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_TABLES);
 		$sut = new DocumentBinder($document);
@@ -1090,6 +1199,40 @@ public function testCleanDatasets_dataBind():void {
 		);
 	}
 
+	public function testCleanDatasets_dataBindDebugKeepsBoundMetadataAndRemovesEmptyMarkers():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_PROFILE_CLEANUP);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindProfileCleanupDebug($sut);
+		$sut->cleanupDocument();
+
+		$section = $document->querySelector("#profile");
+		$heading = $document->querySelector("#profile h1");
+		$paragraph = $document->querySelector("#profile p");
+		self::assertFalse($section->hasAttribute("data-bind-debug"));
+		self::assertSame("text=$expectedDebug", $heading->getAttribute("data-bind-debug"));
+		self::assertSame("text=$expectedDebug", $paragraph->getAttribute("data-bind-debug"));
+		self::assertFalse($heading->hasAttribute("data-bind:text"));
+		self::assertFalse($paragraph->hasAttribute("data-bind:text"));
+	}
+
+	public function testBindList_dataBindDebug():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_LIST);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindListWithDebug($sut);
+		$sut->cleanupDocument();
+
+		$listItems = $document->querySelectorAll("ul li");
+		self::assertCount(2, $listItems);
+		self::assertSame("One", $listItems[0]->textContent);
+		self::assertSame("Two", $listItems[1]->textContent);
+		self::assertSame("text=$expectedDebug", $listItems[0]->getAttribute("data-bind-debug"));
+		self::assertSame("text=$expectedDebug", $listItems[1]->getAttribute("data-bind-debug"));
+	}
+
 	public function testCleanDatasets_dataTemplate():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_LIST);
 		$sut = new DocumentBinder($document);
@@ -1398,6 +1541,29 @@ public function test_bindElementIsRemovedWhenNotBound():void {
 		self::assertNull($errorDiv);
 	}
 
+	public function testCleanupDocument_mixedDebugAndDataElementBehaviour():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_CLEANUP_MIXED_DEBUG);
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(...$this->documentBinderDependencies($document));
+
+		$expectedDebug = $this->bindCleanupMixedDebug($sut);
+		$sut->bindKeyValue("status", true);
+		$sut->cleanupDocument();
+
+		$scope = $document->getElementById("debug-scope");
+		$name = $document->getElementById("name");
+		$error = $document->getElementById("error");
+		$status = $document->getElementById("status");
+		self::assertFalse($scope->hasAttribute("data-bind-debug"));
+		self::assertSame("Cody", $name->textContent);
+		self::assertSame("text=$expectedDebug", $name->getAttribute("data-bind-debug"));
+		self::assertNull($error);
+		self::assertNotNull($status);
+		self::assertSame("Ready", $status->textContent);
+		self::assertFalse($status->hasAttribute("data-element"));
+		self::assertFalse($status->hasAttribute("data-bound"));
+	}
+
 	public function test_bindData_withList_dataBindList():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_DATA_BIND_LIST);
 		$sut = new DocumentBinder($document);
@@ -1655,6 +1821,44 @@ public function testBindList_stringContext():void {
 		$sut->bindList(["List", "for", "main component"]);
 	}
 
+	public function testBindListCallback_stringContext():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_COMPONENT_WITH_ATTRIBUTE_NESTED);
+		$subComponent1 = $document->querySelector("#subcomponent-1");
+		$subComponent2 = $document->querySelector("#subcomponent-2");
+
+		$listBinder = self::createMock(ListBinder::class);
+		$bindMatcher = self::exactly(2);
+		$listBinder->expects($bindMatcher)
+			->method("bindListData")
+			->willReturnCallback(function(
+				array $listData,
+				Element|Document $context,
+				?string $templateName,
+				?callable $callback,
+			)use($bindMatcher, $subComponent1, $subComponent2):int {
+				match($bindMatcher->numberOfInvocations()) {
+					1 => self::assertEquals([["A"], $subComponent1], [$listData, $context]),
+					2 => self::assertEquals([["B"], $subComponent2], [$listData, $context]),
+				};
+				self::assertNotNull($callback);
+				return 0;
+			});
+
+		$sut = new DocumentBinder($document);
+		$sut->setDependencies(
+			self::createStub(ElementBinder::class),
+			self::createStub(PlaceholderBinder::class),
+			self::createStub(TableBinder::class),
+			$listBinder,
+			self::createStub(ListElementCollection::class),
+			self::createStub(BindableCache::class),
+		);
+
+		$callback = fn(Element $template, mixed $listItem, int|string $key):mixed => $listItem;
+		$sut->bindListCallback(["A"], $callback, "#subcomponent-1");
+		$sut->bindListCallback(["B"], $callback, $subComponent2);
+	}
+
 	public function testBindValue_stringContext():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_COMPONENT_WITH_ATTRIBUTE_NESTED);
 		$documentElement = $document->documentElement;
@@ -1710,6 +1914,55 @@ public function getCanReject():bool {
 		self::assertTrue($buttonReject->hasAttribute("disabled"));
 	}
 
+	private function bindNameWithDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindKeyValue("name", "Cody");
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
+	private function bindProfileWithDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindData([
+			"username" => "Cody",
+			"email" => "mailto:cody@example.com",
+			"emailLink" => "mailto:cody@example.com",
+		]);
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
+	private function bindProfileCleanupDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindData([
+			"username" => "Cody",
+			"email" => "cody@example.com",
+		]);
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
+	private function bindListWithDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindList(["One", "Two"]);
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
+	private function bindTableWithDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindTable([
+			["Name", "Role"],
+			["Cody", "Maintainer"],
+		], null, "tableData");
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
+	private function bindCleanupMixedDebug(DocumentBinder $sut):string {
+		$line = __LINE__ + 1;
+		$sut->bindData([
+			"name" => "Cody",
+			"statusMessage" => "Ready",
+		]);
+		return "test/phpunit/DocumentBinderTest.php:$line";
+	}
+
 	private function documentBinderDependencies(HTMLDocument $document, mixed...$otherObjectList):array {
 		$htmlAttributeBinder = new HTMLAttributeBinder();
 		$htmlAttributeCollection = new HTMLAttributeCollection();
diff --git a/test/phpunit/HTMLAttributeBinderTest.php b/test/phpunit/HTMLAttributeBinderTest.php
index 93d7e2d..2e7fae2 100644
--- a/test/phpunit/HTMLAttributeBinderTest.php
+++ b/test/phpunit/HTMLAttributeBinderTest.php
@@ -145,6 +145,27 @@ public function testBind_modifierQuestion_withConditionalNoMatch():void {
 		self::assertFalse($document->getElementById("size-l")->checked);
 	}
 
+	public function testBind_modifierQuestion_withConditionalBooleanMatch():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_CONDITIONAL_BOOLEAN_CHECKBOX);
+		$sut = new HTMLAttributeBinder();
+		$input = $document->getElementById("flag");
+		$input->checked = false;
+
+		$sut->bind("enabled", true, $input);
+
+		self::assertTrue($input->checked);
+	}
+
+	public function testBind_modifierQuestion_withConditionalIterableDoesNotMatch():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_CONDITIONAL_BOOLEAN_CHECKBOX);
+		$sut = new HTMLAttributeBinder();
+		$input = $document->getElementById("flag");
+
+		$sut->bind("enabled", ["1"], $input);
+
+		self::assertFalse($input->checked);
+	}
+
 	public function testBind_modifierQuestion_withConditionalMatch_attributeModifier():void {
 		$document = new HTMLDocument(
 			HTMLPageContent::HTML_RADIO_GROUP_CONDITIONAL_CHECKED_ATTRIBUTE_MODIFIER
@@ -207,6 +228,20 @@ public function testBind_multipleAttributes():void {
 		self::assertSame("value2", $outputElement->dataset->get("attr2"));
 	}
 
+	public function testBind_multipleAttributes_withDebug():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_ATTRIBUTE_BIND_DEBUG);
+		$outputElement = $document->querySelector("output");
+		$sut = new HTMLAttributeBinder();
+		$sut->setDebugSource("app/ProfileController.php:42");
+		$sut->bind("key1", "value1", $outputElement);
+		$sut->bind("key2", "value2", $outputElement);
+
+		self::assertSame(
+			"data-attr1=app/ProfileController.php:42,data-attr2=app/ProfileController.php:42",
+			$outputElement->getAttribute("data-bind-debug")
+		);
+	}
+
 	public function testExpandAttributes_atCharacter():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_BASIC_FORM_WITH_AT_BINDER);
 		$sut = new HTMLAttributeBinder();
@@ -220,9 +255,7 @@ public function testExpandAttributes_atCharacter():void {
 	}
 
 	public function testExpandAttributes_atCharacterDefaultsToName():void {
-		$document = new HTMLDocument(
-			"<!doctype html><html><body><input name='email' data-bind:value='@' /></body></html>"
-		);
+		$document = new HTMLDocument(HTMLPageContent::HTML_INPUT_VALUE_AT_DEFAULT_NAME);
 		$input = $document->querySelector("input");
 		$sut = new HTMLAttributeBinder();
 		$sut->expandAttributes($input);
@@ -230,9 +263,7 @@ public function testExpandAttributes_atCharacterDefaultsToName():void {
 	}
 
 	public function testExpandAttributes_listUsesTagNameWhenNoHyphen():void {
-		$document = new HTMLDocument(
-			"<!doctype html><html><body><ul data-bind:list=''></ul></body></html>"
-		);
+		$document = new HTMLDocument(HTMLPageContent::HTML_LIST_BIND_EMPTY_NAME);
 		$list = $document->querySelector("ul");
 		$sut = new HTMLAttributeBinder();
 		$sut->expandAttributes($list);
diff --git a/test/phpunit/ListElementCollectionTest.php b/test/phpunit/ListElementCollectionTest.php
index 6f6fc7a..0d7db91 100644
--- a/test/phpunit/ListElementCollectionTest.php
+++ b/test/phpunit/ListElementCollectionTest.php
@@ -25,9 +25,7 @@ public function testGet_noName_noMatch():void {
 	}
 
 	public function testGet_noName_noMatchIncludesContextDescription():void {
-		$document = new HTMLDocument(
-			"<!doctype html><html><body><div id='example' class='one two'></div></body></html>"
-		);
+		$document = new HTMLDocument(HTMLPageContent::HTML_LIST_ELEMENT_COLLECTION_CONTEXT);
 		$sut = new ListElementCollection($document);
 
 		self::expectException(ListElementNotFoundInContextException::class);
diff --git a/test/phpunit/TableBinderTest.php b/test/phpunit/TableBinderTest.php
index 57fe556..0836f6d 100644
--- a/test/phpunit/TableBinderTest.php
+++ b/test/phpunit/TableBinderTest.php
@@ -1,6 +1,8 @@
 <?php
 namespace Gt\DomTemplate\Test;
 
+use ArrayIterator;
+use IteratorAggregate;
 use Gt\Dom\HTMLDocument;
 use Gt\DomTemplate\BindableCache;
 use Gt\DomTemplate\ElementBinder;
@@ -84,6 +86,21 @@ public function testBindTable_emptyTableSpecifiedByName():void {
 		self::assertCount(1, $table3->tBodies[0]->rows);
 	}
 
+	public function testBindTable_matchesAncestorBindKey():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_TABLE_ANCESTOR_BIND_KEY);
+		$sut = new TableBinder();
+		$sut->setDependencies(...$this->tablebinderDependencies($document));
+
+		$sut->bindTableData([
+			["Name", "Role"],
+			["Cody", "Maintainer"],
+		], $document, "tableData");
+
+		$table = $document->getElementById("tbl");
+		self::assertSame("Cody", $table->tBodies[0]->rows[0]->cells[0]->textContent);
+		self::assertSame("Maintainer", $table->tBodies[0]->rows[0]->cells[1]->textContent);
+	}
+
 	/**
 	 * Binding table data into a table that already has a <thead> element
 	 * will use the existing <th> values to limit which columns are output.
@@ -173,6 +190,44 @@ public function testBindTable_dataNormalised():void {
 		self::assertSame("pollita@php.net", $row3->cells[2]->textContent);
 	}
 
+	public function testBindTable_traversableData():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_TABLES);
+		$sut = new TableBinder();
+		$sut->setDependencies(...$this->tablebinderDependencies($document));
+
+		$tableData = new ArrayIterator([
+			["Name", "Position"],
+			["Alan Statham", "Head of Radiology"],
+			["Sue White", "Staff Liason Officer"],
+		]);
+		$sut->bindTableData($tableData, $document->getElementById("tbl1"), "tableData");
+
+		$table = $document->getElementById("tbl1");
+		self::assertSame("Alan Statham", $table->tBodies[0]->rows[0]->cells[0]->textContent);
+		self::assertSame("Staff Liason Officer", $table->tBodies[0]->rows[1]->cells[1]->textContent);
+	}
+
+	public function testBindTable_iteratorAggregateData():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_TABLES);
+		$sut = new TableBinder();
+		$sut->setDependencies(...$this->tablebinderDependencies($document));
+
+		$tableData = new class implements IteratorAggregate {
+			public function getIterator():ArrayIterator {
+				return new ArrayIterator([
+					["Name", "Position"],
+					["Alan Statham", "Head of Radiology"],
+					["Sue White", "Staff Liason Officer"],
+				]);
+			}
+		};
+		$sut->bindTableData($tableData, $document->getElementById("tbl1"), "tableData");
+
+		$table = $document->getElementById("tbl1");
+		self::assertSame("Alan Statham", $table->tBodies[0]->rows[0]->cells[0]->textContent);
+		self::assertSame("Staff Liason Officer", $table->tBodies[0]->rows[1]->cells[1]->textContent);
+	}
+
 	/**
 	 * A "double header" is a term I use to describe tables that have
 	 * header data in the first column going along the top, but also another
@@ -670,6 +725,21 @@ public function testDetectTableStructureType_listRejectsMixedRowShapes():void {
 		$sut->detectTableDataStructureType($data);
 	}
 
+	public function testDetectTableStructureType_listRejectsMixedIterableAndScalarShapes():void {
+		$data = [
+			["Item", "Price"],
+			["Washing machine", "69800"],
+			[
+				"Television" => ["99800"],
+				"Stock Level" => ["7"],
+			],
+		];
+		$sut = new TableBinder();
+
+		self::expectException(IncorrectTableDataFormat::class);
+		$sut->detectTableDataStructureType($data);
+	}
+
 	public function testBindTableData_noTableInitializesFallbackDependencies():void {
 		$document = new HTMLDocument(HTMLPageContent::HTML_EMPTY);
 		$sut = new TableBinder();
@@ -697,6 +767,23 @@ public function testBindTableData_initializesFallbackDependenciesWhenTableExists
 		self::assertSame("Staff Liason Officer", $table->tBodies[0]->rows[1]->cells[1]->textContent);
 	}
 
+	public function testBindTableData_debugAddsMetadataToGeneratedCells():void {
+		$document = new HTMLDocument(HTMLPageContent::HTML_BIND_DEBUG_GENERATED_TABLE);
+		$sut = new TableBinder();
+		$sut->setDependencies(...$this->tablebinderDependencies($document));
+		$sut->setDebugSource("app/Controller.php:10");
+
+		$sut->bindTableData([
+			["Name", "Role"],
+			["Cody", "Maintainer"],
+		], $document, "tableData");
+
+		$headerCell = $document->querySelector("thead td");
+		$bodyCell = $document->querySelector("tbody td");
+		self::assertSame("text=app/Controller.php:10", $headerCell->getAttribute("data-bind-debug"));
+		self::assertSame("text=app/Controller.php:10", $bodyCell->getAttribute("data-bind-debug"));
+	}
+
 	private function tablebinderDependencies(HTMLDocument $document):array {
 		$htmlAttributeBinder = new HTMLAttributeBinder();
 		$htmlAttributeCollection = new HTMLAttributeCollection();
diff --git a/test/phpunit/TestHelper/HTMLPageContent.php b/test/phpunit/TestHelper/HTMLPageContent.php
index e9b833e..e775dfe 100644
--- a/test/phpunit/TestHelper/HTMLPageContent.php
+++ b/test/phpunit/TestHelper/HTMLPageContent.php
@@ -91,6 +91,77 @@ class HTMLPageContent {
 </div>
 HTML;
 
+	const HTML_EMPTY_COMPONENT = <<<HTML
+<!doctype html><html><body><empty-component /></body></html>
+HTML;
+
+	const HTML_LIST_ELEMENT_COLLECTION_CONTEXT = <<<HTML
+<!doctype html><html><body><div id="example" class="one two"></div></body></html>
+HTML;
+
+	const HTML_TABLE_ANCESTOR_BIND_KEY = <<<HTML
+<!doctype html><div data-bind:table="tableData"><table id="tbl"></table></div>
+HTML;
+
+	const HTML_CONDITIONAL_BOOLEAN_CHECKBOX = <<<HTML
+<!doctype html><html><body><input id="flag" type="checkbox" data-bind:checked="?enabled=1" checked /></body></html>
+HTML;
+
+	const HTML_ATTRIBUTE_BIND_DEBUG = <<<HTML
+<!doctype html><section data-bind-debug><output data-bind:data-attr1="key1" data-bind:data-attr2="key2">Nothing is bound</output></section>
+HTML;
+
+	const HTML_INPUT_VALUE_AT_DEFAULT_NAME = <<<HTML
+<!doctype html><html><body><input name="email" data-bind:value="@" /></body></html>
+HTML;
+
+	const HTML_LIST_BIND_EMPTY_NAME = <<<HTML
+<!doctype html><html><body><ul data-bind:list=""></ul></body></html>
+HTML;
+
+	const HTML_BIND_DEBUG_SINGLE_NAME = <<<HTML
+<!doctype html><p data-bind:text="name" data-bind-debug>Test</p>
+HTML;
+
+	const HTML_BIND_DEBUG_PROFILE = <<<HTML
+<!doctype html>
+<section id="profile" data-bind-debug>
+	<h1 data-bind:text="username">Guest</h1>
+	<p>Contact: <a data-bind:href="emailLink" data-bind:text="email">guest@example.com</a></p>
+</section>
+<aside>
+	<span data-bind:text="username">Outside</span>
+</aside>
+HTML;
+
+	const HTML_BIND_DEBUG_PROFILE_CLEANUP = <<<HTML
+<!doctype html>
+<section id="profile" data-bind-debug>
+	<h1 data-bind:text="username">Guest</h1>
+	<p data-bind:text="email">guest@example.com</p>
+</section>
+HTML;
+
+	const HTML_BIND_DEBUG_LIST = <<<HTML
+<!doctype html>
+<section data-bind-debug>
+	<ul>
+		<li data-list data-bind:text>Template</li>
+	</ul>
+</section>
+HTML;
+
+	const HTML_BIND_DEBUG_TABLE = <<<HTML
+<!doctype html>
+<section data-bind-debug>
+	<table data-bind:table="tableData"></table>
+</section>
+HTML;
+
+	const HTML_BIND_DEBUG_GENERATED_TABLE = <<<HTML
+<!doctype html><section data-bind-debug><table id="tbl" data-bind:table="tableData"></table></section>
+HTML;
+
 
 	const HTML_DIFFERENT_BIND_PROPERTIES = <<<HTML
 <!doctype html>
@@ -1184,6 +1255,15 @@ class HTMLPageContent {
 	
 	<button name="do" value="login">Log in!</button>
 </form>
+HTML;
+
+	const HTML_CLEANUP_MIXED_DEBUG = <<<HTML
+<!doctype html>
+<section id="debug-scope" data-bind-debug>
+	<p id="name" data-bind:text="name">Guest</p>
+	<div id="error" data-element data-bind:text="error">Error message</div>
+	<div id="status" data-element="status" data-bind:text="statusMessage">Pending</div>
+</section>
 HTML;
 
 	const HTML_DATA_BIND_LIST = <<<HTML