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support/testing: new runtime test for gumbo-parser

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The new test requires a br2-external directory because we compile a
small test program on the host and install it on the target, but it's
not useful to have it in the main Buildroot package tree.

The test program loads and parses a sample HTML document. Taking
inspiration from 'examples/get_title.c' in gumbo-parser, it also
searches for the title of the document just to check that we can do
more than the parsing.

Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
This commit is contained in:
Raphaël Mélotte
2025-06-26 13:19:18 +02:00
committed by Julien Olivain
parent 1e106d8412
commit da23be6338
7 changed files with 96 additions and 0 deletions
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1
support/testing/tests/package/br2-external/gumbo-parser/Config.in Normal file
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source "$BR2_EXTERNAL_GUMBO_PARSER_PATH/package/gumbo-parser-test/Config.in"

1
support/testing/tests/package/br2-external/gumbo-parser/external.desc Normal file
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name: GUMBO_PARSER

1
support/testing/tests/package/br2-external/gumbo-parser/external.mk Normal file
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include $(sort $(wildcard $(BR2_EXTERNAL_GUMBO_PARSER_PATH)/package/*/*.mk))

7
support/testing/tests/package/br2-external/gumbo-parser/package/gumbo-parser-test/Config.in Normal file
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config BR2_PACKAGE_GUMBO_PARSER_TEST
bool "gumbo-parser-test"
depends on BR2_PACKAGE_GUMBO_PARSER
help
Test program for gumbo-parser library.
This package builds a simple test program that demonstrates
basic HTML parsing functionality using gumbo-parser.

19
support/testing/tests/package/br2-external/gumbo-parser/package/gumbo-parser-test/gumbo-parser-test.mk Normal file
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################################################################################
#
# gumbo-parser-test
#
################################################################################
GUMBO_PARSER_TEST_DEPENDENCIES = gumbo-parser
define GUMBO_PARSER_TEST_BUILD_CMDS
$(TARGET_CC) $(TARGET_CFLAGS) -o $(@D)/gumbo_test \
$(GUMBO_PARSER_TEST_PKGDIR)/gumbo_test.c \
$(TARGET_LDFLAGS) -lgumbo
endef
define GUMBO_PARSER_TEST_INSTALL_TARGET_CMDS
$(INSTALL) -D -m 0755 $(@D)/gumbo_test $(TARGET_DIR)/usr/bin/gumbo_test
endef
$(eval $(generic-package))

40
support/testing/tests/package/br2-external/gumbo-parser/package/gumbo-parser-test/gumbo_test.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gumbo.h>
static void search_for_title(GumboNode* node) {
if (node->type != GUMBO_NODE_ELEMENT) {
return;
}
if (node->v.element.tag == GUMBO_TAG_TITLE) {
GumboNode* text = node->v.element.children.data[0];
if (text->type == GUMBO_NODE_TEXT) {
printf("Found title: %s\n", text->v.text.text);
}
return;
}
GumboVector* children = &node->v.element.children;
for (unsigned int i = 0; i < children->length; ++i) {
search_for_title(children->data[i]);
}
}
int main() {
const char* html = "<html><head><title>Test HTML</title></head><body><p>Hello World</p></body></html>";
GumboOutput* output = gumbo_parse(html);
if (output == NULL) {
printf("HTML parsing failed\n");
return 1;
}
printf("HTML parsing successful\n");
search_for_title(output->root);
gumbo_destroy_output(&kGumboDefaultOptions, output);
return 0;
}

27
support/testing/tests/package/test_gumbo_parser.py Normal file
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import os
import infra.basetest
class TestGumboParser(infra.basetest.BRTest):
br2_external = [infra.filepath("tests/package/br2-external/gumbo-parser")]
config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
"""
BR2_PACKAGE_GUMBO_PARSER=y
BR2_PACKAGE_GUMBO_PARSER_TEST=y
BR2_TARGET_ROOTFS_CPIO=y
# BR2_TARGET_ROOTFS_TAR is not set
"""
def test_run(self):
cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
self.emulator.boot(arch="armv5",
kernel="builtin",
options=["-initrd", cpio_file])
self.emulator.login()
# Run the test program and check output
out, ret = self.emulator.run("/usr/bin/gumbo_test")
self.assertEqual(ret, 0)
self.assertIn("HTML parsing successful", "\n".join(out))
self.assertIn("Found title: Test HTML", "\n".join(out))