libxml / tests /tests_HTMLparser_htmlCreateDocParserCtxt.c

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	#include "unity/unity.h"
	#include <libxml/HTMLparser.h>

	#include <stdlib.h>
	#include <string.h>

	/* Wrapper for the static function under test (provided in the module) */
	extern htmlParserCtxtPtr test_htmlCreateDocParserCtxt(const xmlChar str, const char url, const char *encoding);

	static void free_ctxt(htmlParserCtxtPtr ctxt) {
	if (ctxt != NULL) {
	xmlFreeParserCtxt(ctxt);
	}
	}

	void setUp(void) {
	/* Initialize libxml2 for each test to ensure a clean environment */
	xmlInitParser();
	}

	void tearDown(void) {
	/* Cleanup libxml2 globals after each test */
	xmlCleanupParser();
	}

	void test_htmlCreateDocParserCtxt_null_str_returns_null(void) {
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(NULL, NULL, NULL);
	TEST_ASSERT_NULL(ctxt);
	}

	void test_htmlCreateDocParserCtxt_simple_html_success(void) {
	const xmlChar *str = BAD_CAST "<!DOCTYPE html><html><body>Hello</body></html>";
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(str, NULL, NULL);

	TEST_ASSERT_NOT_NULL(ctxt);
	/* A successful push of the input stream should result in at least one input */
	TEST_ASSERT_TRUE_MESSAGE(ctxt->inputNr >= 1, "Expected at least one input on the stack");
	free_ctxt(ctxt);
	}

	void test_htmlCreateDocParserCtxt_empty_string_success(void) {
	const xmlChar *str = BAD_CAST "";
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(str, NULL, NULL);

	TEST_ASSERT_NOT_NULL(ctxt);
	TEST_ASSERT_TRUE_MESSAGE(ctxt->inputNr >= 1, "Expected at least one input on the stack for empty string");
	free_ctxt(ctxt);
	}

	void test_htmlCreateDocParserCtxt_with_url_success(void) {
	const xmlChar *str = BAD_CAST "Hi";
	const char *url = "http://example.com/base/index.html";
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(str, url, NULL);

	TEST_ASSERT_NOT_NULL(ctxt);
	TEST_ASSERT_TRUE_MESSAGE(ctxt->inputNr >= 1, "Expected at least one input on the stack with URL provided");
	free_ctxt(ctxt);
	}

	void test_htmlCreateDocParserCtxt_with_utf8_encoding_success(void) {
	/* ASCII-only content to avoid ambiguity; explicit UTF-8 encoding */
	const xmlChar *str = BAD_CAST "Just some text";
	const char *encoding = "UTF-8";
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(str, NULL, encoding);

	TEST_ASSERT_NOT_NULL(ctxt);
	TEST_ASSERT_TRUE_MESSAGE(ctxt->inputNr >= 1, "Expected at least one input on the stack with UTF-8 encoding");
	free_ctxt(ctxt);
	}

	void test_htmlCreateDocParserCtxt_with_iso_8859_1_encoding_success(void) {
	/* ASCII-only content is valid in ISO-8859-1 as well */
	const xmlChar *str = BAD_CAST "Plain ASCII content";
	const char *encoding = "ISO-8859-1";
	htmlParserCtxtPtr ctxt = test_htmlCreateDocParserCtxt(str, NULL, encoding);

	TEST_ASSERT_NOT_NULL(ctxt);
	TEST_ASSERT_TRUE_MESSAGE(ctxt->inputNr >= 1, "Expected at least one input on the stack with ISO-8859-1 encoding");
	free_ctxt(ctxt);
	}

	int main(void) {
	UNITY_BEGIN();

	RUN_TEST(test_htmlCreateDocParserCtxt_null_str_returns_null);
	RUN_TEST(test_htmlCreateDocParserCtxt_simple_html_success);
	RUN_TEST(test_htmlCreateDocParserCtxt_empty_string_success);
	RUN_TEST(test_htmlCreateDocParserCtxt_with_url_success);
	RUN_TEST(test_htmlCreateDocParserCtxt_with_utf8_encoding_success);
	RUN_TEST(test_htmlCreateDocParserCtxt_with_iso_8859_1_encoding_success);

	return UNITY_END();
	}