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Change test templating syntax to be valid C

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For the benefit of auto-formatting tools, move from the '$placeholder'
templating syntax to a new syntax of the form:

__MBEDTLS_TEST_TEMPLATE__PLACEHOLDER

This change allows the test code template to be almost entirely valid C.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2022-11-03 17:49:29 +00:00
parent 4feb94a965
commit b85838f2f4
2 changed files with 69 additions and 50 deletions
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75
tests/scripts/generate_test_code.py
View file

@ -126,33 +126,33 @@ code that is generated or read from helpers and platform files.
This script replaces following fields in the template and generates
the test source file:
$test_common_helpers <-- All common code from helpers.function
is substituted here.
$functions_code <-- Test functions are substituted here
from the input test_suit_xyz.function
file. C preprocessor checks are generated
for the build dependencies specified
in the input file. This script also
generates wrappers for the test
functions with code to expand the
string parameters read from the data
file.
$expression_code <-- This script enumerates the
expressions in the .data file and
generates code to handle enumerated
expression Ids and return the values.
$dep_check_code <-- This script enumerates all
build dependencies and generate
code to handle enumerated build
dependency Id and return status: if
the dependency is defined or not.
$dispatch_code <-- This script enumerates the functions
specified in the input test data file
and generates the initializer for the
function table in the template
file.
$platform_code <-- Platform specific setup and test
dispatch code.
__MBEDTLS_TEST_TEMPLATE__TEST_COMMON_HELPERS <-- All common code from helpers.function
is substituted here.
__MBEDTLS_TEST_TEMPLATE__FUNCTIONS_CODE <-- Test functions are substituted here
from the input test_suit_xyz.function
file. C preprocessor checks are generated
for the build dependencies specified
in the input file. This script also
generates wrappers for the test
functions with code to expand the
string parameters read from the data
file.
__MBEDTLS_TEST_TEMPLATE__EXPRESSION_CODE <-- This script enumerates the
expressions in the .data file and
generates code to handle enumerated
expression Ids and return the values.
__MBEDTLS_TEST_TEMPLATE__DEP_CHECK_CODE <-- This script enumerates all
build dependencies and generate
code to handle enumerated build
dependency Id and return status: if
the dependency is defined or not.
__MBEDTLS_TEST_TEMPLATE__DISPATCH_CODE <-- This script enumerates the functions
specified in the input test data file
and generates the initializer for the
function table in the template
file.
__MBEDTLS_TEST_TEMPLATE__PLATFORM_CODE <-- Platform specific setup and test
dispatch code.
"""
@ -974,11 +974,30 @@ def write_test_source_file(template_file, c_file, snippets):
:param snippets: Generated and code snippets
:return:
"""
# Create a placeholder pattern with the correct named capture groups
# to override the default provided with Template.
# Match nothing (no way of escaping placeholders).
escaped = "(?P<escaped>(?!))"
# Match the "__MBEDTLS_TEST_TEMPLATE__PLACEHOLDER_NAME" pattern.
named = "__MBEDTLS_TEST_TEMPLATE__(?P<named>[A-Z][_A-Z0-9]*)"
# Match nothing (no braced placeholder syntax).
braced = "(?P<braced>(?!))"
# If not already matched, a "__MBEDTLS_TEST_TEMPLATE__" prefix is invalid.
invalid = "(?P<invalid>__MBEDTLS_TEST_TEMPLATE__)"
placeholder_pattern = re.compile(escaped \
+ "|" + named \
+ "|" + braced \
+ "|" + invalid)
with open(template_file, 'r') as template_f, open(c_file, 'w') as c_f:
for line_no, line in enumerate(template_f.readlines(), 1):
# Update line number. +1 as #line directive sets next line number
snippets['line_no'] = line_no + 1
code = string.Template(line).substitute(**snippets)
template = string.Template(line)
template.pattern = placeholder_pattern
snippets = {k.upper():v for (k, v) in snippets.items()}
code = template.substitute(**snippets)
c_f.write(code)