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# build-aux/measurestack/test_app_plugins.py - Tests for app_plugins.py
#
# Copyright (C) 2025 Luke T. Shumaker <lukeshu@lukeshu.com>
# SPDX-License-Identifier: AGPL-3.0-or-later
# pylint: disable=unused-variable
import typing
from . import analyze, app_plugins, testutil, util
from .analyze import BaseName, QName
def test_fct() -> None:
# 1. | a + | b + | c + |
# 2. | fmt_vsnprintf + | vprintf + | __lm_light_printf + |
# 3. | fmt_vfctprintf + | fmt_vfctprintf + | fmt_vfctprintf + |
# 4. | fmt_state_putchar + | fmt_state_putchar + | fmt_state_putchar + |
# 5. | _out_buffer + | stdio_buffered_printer + | libfmt_light_fct + |
max_call_depth = 5
exp_a = ["a", "fmt_vsnprintf", "fmt_vfctprintf", "fmt_state_putchar", "_out_buffer"]
exp_b = [
"b",
"__wrap_vprintf",
"fmt_vfctprintf",
"fmt_state_putchar",
"stdio_buffered_printer",
]
exp_c = [
"c",
"__lm_light_printf",
"fmt_vfctprintf",
"fmt_state_putchar",
"libfmt_light_fct",
]
graph: typing.Sequence[tuple[str, typing.Collection[str]]] = [
# main.c
("a", {"fmt_vsnprintf"}), # _out_buffer
("b", {"vprintf"}), # stdio_buffered_printer
("c", {"__lm_light_printf"}), # libfmt_light_printf
# wrappers
("fmt_vsnprintf", {"fmt_vfctprintf"}),
("__wrap_vprintf", {"fmt_vfctprintf"}),
("__lm_light_printf", {"fmt_vfctprintf"}),
# printf.c
("fmt_vfctprintf", {"fmt_state_putchar"}),
(
"fmt_state_putchar",
{"_out_buffer", "stdio_buffered_printer", "libfmt_light_fct"},
),
# fcts
("_out_buffer", {}),
("stdio_buffered_printer", {}),
("libfmt_light_fct", {}),
]
graph_plugin = testutil.GraphProviderPlugin(max_call_depth, graph)
plugins: list[util.Plugin] = [
graph_plugin,
app_plugins.LibMiscPlugin(arg_c_fnames=[]),
# fmt_vsnprintf => fct=_out_buffer
# if rp2040:
# __wrap_vprintf => fct=stdio_buffered_printer
# stdio_vprintf => fct=stdio_buffered_printer
# __lm_light_printf => fct=libfmt_light_fct
# if host:
# __lm_printf => fct=libfmt_libc_fct
# __lm_light_printf => fct=libfmt_libc_fct
app_plugins.PicoFmtPlugin("rp2040", []),
]
def test_filter(name: QName) -> tuple[int, bool]:
if str(name.base()) in ["a", "b", "c"]:
return 1, True
return 0, False
result = analyze.analyze(
ci_fnames=[],
app_func_filters={
"Main": test_filter,
},
app=util.PluginApplication(testutil.nop_location_xform, plugins),
cfg_max_call_depth=max_call_depth,
)
graph_plugin.assert_nstatic(result.groups["Main"].rows[QName("a")].nstatic, exp_a)
graph_plugin.assert_nstatic(result.groups["Main"].rows[QName("b")].nstatic, exp_b)
graph_plugin.assert_nstatic(result.groups["Main"].rows[QName("c")].nstatic, exp_c)
def test_assert_formatter() -> None:
# _____________________________________________________
# | |
# | |
# | main |
# | | |
# | __wrap_vprintf |
# | | _______________ |
# | fmt_vfctprintf / \ |
# | \ fmt_state_printf | |
# | \____ ____/ | |
# | \ / | |
# | _vfctprintf | |
# | ____/ \____ ^ |
# | / ?<---snip | |
# | conv_builtin \ | |
# | | libfmt_conv_formatter | |
# | | | | |
# | \ lib9p_msg_Rread_format | |
# | \___________ __/ \___________/ |
# | \ / |
# | fmt_state_putchar |
# | | |
# | stdio_buffered_printer |
# | |
# |_____________________________________________________|
#
graph: typing.Sequence[tuple[str, typing.Collection[str]]] = [
("main", {"vprintf"}),
("__wrap_vprintf", {"fmt_vfctprintf"}),
("fmt_vfctprintf", {"_vfctprintf"}),
("fmt_state_printf", {"_vfctprintf"}),
("_vfctprintf", {"conv_builtin", "libfmt_conv_formatter"}),
("conv_builtin", {"fmt_state_putchar"}),
("libfmt_conv_formatter", {"lib9p_msg_Rread_format"}),
("lib9p_msg_Rread_format", {"fmt_state_putchar", "fmt_state_printf"}),
("fmt_state_putchar", {"stdio_buffered_printer", "libfmt_light_fct"}),
("stdio_buffered_printer", {}),
("libfmt_light_fct", {}), # wrong fct
]
# 1 2 3 4 5 6 7 8 9 10 11 <= call_depth
# - main() ; +
# - __wrap__vprintf() ; +
# - fmt_vfctprintf() ; +
# - _vfctprintf() ; +
# - conv_builtin() ;
# - fmt_state_putchar() ;
# - stdio_buffered_printer() ;
# - libfmt_conv_formatter() ; +
# - lib9p_msg_Rread_format() ; +
# - fmt_state_putchar() ;
# - stdio_buffered_printer() ;
# - fmt_state_printf() ; +
# - _vfctprintf() ; +
# - conv_builtin() ; +
# - fmt_state_putchar() ; +
# - stdio_buffered_printer() ; +
# - libfmt_conv_formatter() ; skip (formatter won't use %v)
max_call_depth = 11
exp = [
"main",
"__wrap_vprintf",
"fmt_vfctprintf",
"_vfctprintf",
"libfmt_conv_formatter",
"lib9p_msg_Rread_format",
"fmt_state_printf",
"_vfctprintf",
"conv_builtin",
"fmt_state_putchar",
"stdio_buffered_printer",
]
graph_plugin = testutil.GraphProviderPlugin(max_call_depth, graph)
plugins: list[util.Plugin] = [
graph_plugin,
app_plugins.LibMiscPlugin(arg_c_fnames=[]),
app_plugins.PicoFmtPlugin("rp2040", [BaseName("lib9p_msg_Rread_format")]),
]
def test_filter(name: QName) -> tuple[int, bool]:
if name.base() == BaseName("main"):
return 1, True
return 0, False
result = analyze.analyze(
ci_fnames=[],
app_func_filters={
"Main": test_filter,
},
app=util.PluginApplication(testutil.nop_location_xform, plugins),
cfg_max_call_depth=max_call_depth,
)
graph_plugin.assert_nstatic(result.groups["Main"].rows[QName("main")].nstatic, exp)
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