feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 119 insertions, 0 deletions

diff --git a/vanilla/node_modules/@acemir/cssom/lib/errorUtils.js b/vanilla/node_modules/@acemir/cssom/lib/errorUtils.js
new file mode 100644
index 0000000..5ba8423
--- /dev/null
+++ b/vanilla/node_modules/@acemir/cssom/lib/errorUtils.js
@@ -0,0 +1,119 @@
+// Utility functions for CSSOM error handling
+
+/**
+ * Gets the appropriate error constructor from the global object context.
+ * Tries to find the error constructor from parentStyleSheet.__globalObject,
+ * then from __globalObject, then falls back to the native constructor.
+ * 
+ * @param {Object} context - The CSSOM object (rule, stylesheet, etc.)
+ * @param {string} errorType - The error type ('TypeError', 'RangeError', 'DOMException', etc.)
+ * @return {Function} The error constructor
+ */
+function getErrorConstructor(context, errorType) {
+	// Try parentStyleSheet.__globalObject first
+	if (context.parentStyleSheet && context.parentStyleSheet.__globalObject && context.parentStyleSheet.__globalObject[errorType]) {
+		return context.parentStyleSheet.__globalObject[errorType];
+	}
+	
+	// Try __parentStyleSheet (alternative naming)
+	if (context.__parentStyleSheet && context.__parentStyleSheet.__globalObject && context.__parentStyleSheet.__globalObject[errorType]) {
+		return context.__parentStyleSheet.__globalObject[errorType];
+	}
+	
+	// Try __globalObject on the context itself
+	if (context.__globalObject && context.__globalObject[errorType]) {
+		return context.__globalObject[errorType];
+	}
+	
+	// Fall back to native constructor
+	return (typeof global !== 'undefined' && global[errorType]) || 
+	       (typeof window !== 'undefined' && window[errorType]) || 
+	       eval(errorType);
+}
+
+/**
+ * Creates an appropriate error with context-aware constructor.
+ * 
+ * @param {Object} context - The CSSOM object (rule, stylesheet, etc.)
+ * @param {string} errorType - The error type ('TypeError', 'RangeError', 'DOMException', etc.)
+ * @param {string} message - The error message
+ * @param {string} [name] - Optional name for DOMException
+ */
+function createError(context, errorType, message, name) {
+	var ErrorConstructor = getErrorConstructor(context, errorType);
+	return new ErrorConstructor(message, name);
+}
+
+/**
+ * Creates and throws an appropriate error with context-aware constructor.
+ * 
+ * @param {Object} context - The CSSOM object (rule, stylesheet, etc.)
+ * @param {string} errorType - The error type ('TypeError', 'RangeError', 'DOMException', etc.)
+ * @param {string} message - The error message
+ * @param {string} [name] - Optional name for DOMException
+ */
+function throwError(context, errorType, message, name) {
+	throw createError(context, errorType, message, name);
+}
+
+/**
+ * Throws a TypeError for missing required arguments.
+ * 
+ * @param {Object} context - The CSSOM object
+ * @param {string} methodName - The method name (e.g., 'appendRule')
+ * @param {string} objectName - The object name (e.g., 'CSSKeyframesRule')
+ * @param {number} [required=1] - Number of required arguments
+ * @param {number} [provided=0] - Number of provided arguments
+ */
+function throwMissingArguments(context, methodName, objectName, required, provided) {
+	required = required || 1;
+	provided = provided || 0;
+	var message = "Failed to execute '" + methodName + "' on '" + objectName + "': " + 
+	              required + " argument" + (required > 1 ? "s" : "") + " required, but only " + 
+	              provided + " present.";
+	throwError(context, 'TypeError', message);
+}
+
+/**
+ * Throws a DOMException for parse errors.
+ * 
+ * @param {Object} context - The CSSOM object
+ * @param {string} methodName - The method name
+ * @param {string} objectName - The object name
+ * @param {string} rule - The rule that failed to parse
+ * @param {string} [name='SyntaxError'] - The DOMException name
+ */
+function throwParseError(context, methodName, objectName, rule, name) {
+	var message = "Failed to execute '" + methodName + "' on '" + objectName + "': " +
+	              "Failed to parse the rule '" + rule + "'.";
+	throwError(context, 'DOMException', message, name || 'SyntaxError');
+}
+
+/**
+ * Throws a DOMException for index errors.
+ * 
+ * @param {Object} context - The CSSOM object
+ * @param {string} methodName - The method name
+ * @param {string} objectName - The object name
+ * @param {number} index - The invalid index
+ * @param {number} maxIndex - The maximum valid index
+ * @param {string} [name='IndexSizeError'] - The DOMException name
+ */
+function throwIndexError(context, methodName, objectName, index, maxIndex, name) {
+	var message = "Failed to execute '" + methodName + "' on '" + objectName + "': " +
+	              "The index provided (" + index + ") is larger than the maximum index (" + maxIndex + ").";
+	throwError(context, 'DOMException', message, name || 'IndexSizeError');
+}
+
+var errorUtils = {
+	createError: createError,
+	getErrorConstructor: getErrorConstructor,
+	throwError: throwError,
+	throwMissingArguments: throwMissingArguments,
+	throwParseError: throwParseError,
+	throwIndexError: throwIndexError
+};
+
+//.CommonJS
+exports.errorUtils = errorUtils;
+///CommonJS
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