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build/test/rescan_header.py
Jurko Gospodnetić 343b4d6532 Updated the internal Boost Build testing system to use the Python subprocess module (introduced in Python 2.4) for running external processes instead of popen2 (deprecated since Python 2.6). We are already using Python 2.4 features in this codebase so there is no need to support Python releases older than 2.4. 
Related changes:
  * BoostBuild.Tester & TestCmd.TestCmd interfaces now accept external process parameters as a list of strings, thus avoiding problems with parsing arguments containing spaces.
  * Avoided a potential process hang in case an external process being run prints out enough output to fill up the OS's pipe buffer (OS would pause the process until someone read the data from the pipe but the testing framework would not do this until the process in question had terminated).

[SVN r79448]
2012-07-12 12:55:25 +00:00

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#!/usr/bin/python
# Copyright 2012 Steven Watanabe
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
import BoostBuild
t = BoostBuild.Tester()
# Test a header loop that depends on (but does not contain) a generated header.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.h", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#include "header3.h"
#endif
""")
t.write("header3.in", "/* empty file */\n")
t.write("jamroot.jam", """\
import common ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp : <implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2"])
t.expect_addition("bin/$toolset/debug/header3.h")
t.expect_addition("bin/$toolset/debug/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test a linear sequence of generated headers.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.in", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.in", "/* empty file */\n")
t.write("jamroot.jam", """\
import common ;
make header1.h : header1.in : @common.copy ;
make header2.h : header2.in : @common.copy ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp :
<implicit-dependency>header1.h
<implicit-dependency>header2.h
<implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/$toolset/debug/header1.h")
t.expect_addition("bin/$toolset/debug/header2.h")
t.expect_addition("bin/$toolset/debug/header3.h")
t.expect_addition("bin/$toolset/debug/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test a loop in generated headers.
t.write("test.cpp", '#include "header1.h"\n')
t.write("header1.in", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#endif
""")
t.write("jamroot.jam", """\
import common ;
actions copy {
sleep 1
cp $(>) $(<)
}
make header1.h : header1.in : @common.copy ;
make header2.h : header2.in : @common.copy ;
make header3.h : header3.in : @common.copy ;
obj test : test.cpp :
<implicit-dependency>header1.h
<implicit-dependency>header2.h
<implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/$toolset/debug/header1.h")
t.expect_addition("bin/$toolset/debug/header2.h")
t.expect_addition("bin/$toolset/debug/header3.h")
t.expect_addition("bin/$toolset/debug/test.obj")
t.expect_nothing_more()
t.rm(".")
# Test that all the dependencies of a loop are updated before any of the
# dependents.
t.write("test1.cpp", '#include "header1.h"\n')
t.write("test2.cpp", """\
#include "header2.h"
int main() {}
""")
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.h", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header1.h"
#include "header3.h"
#endif
""")
t.write("header3.in", "\n")
t.write("sleep.bat", """\
::@timeout /T %1 /NOBREAK >nul
@ping 127.0.0.1 -n 2 -w 1000 >nul
@ping 127.0.0.1 -n %1 -w 1000 >nul
@exit /B 0
""")
t.write("jamroot.jam", """\
import common ;
import os ;
if [ os.name ] = NT
{
SLEEP = call sleep.bat ;
}
else
{
SLEEP = sleep ;
}
rule copy { common.copy $(<) : $(>) ; }
actions copy { $(SLEEP) 1 }
make header3.h : header3.in : @copy ;
exe test : test2.cpp test1.cpp : <implicit-dependency>header3.h ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/$toolset/debug/header3.h")
t.expect_addition("bin/$toolset/debug/test1.obj")
t.expect_addition("bin/$toolset/debug/test2.obj")
t.expect_addition("bin/$toolset/debug/test.exe")
t.expect_nothing_more()
t.touch("header3.in")
t.run_build_system(["-j2", "test"])
t.expect_touch("bin/$toolset/debug/header3.h")
t.expect_touch("bin/$toolset/debug/test1.obj")
t.expect_touch("bin/$toolset/debug/test2.obj")
t.expect_touch("bin/$toolset/debug/test.exe")
t.expect_nothing_more()
t.rm(".")
# Test a loop that includes a generated header
t.write("test1.cpp", '#include "header1.h"\n')
t.write("test2.cpp", """\
#include "header2.h"
int main() {}
""")
t.write("header1.h", """\
#ifndef HEADER1_H
#define HEADER1_H
#include "header2.h"
#endif
""")
t.write("header2.in", """\
#ifndef HEADER2_H
#define HEADER2_H
#include "header3.h"
#endif
""")
t.write("header3.h", """\
#ifndef HEADER3_H
#define HEADER3_H
#include "header1.h"
#endif
""")
t.write("sleep.bat", """\
::@timeout /T %1 /NOBREAK >nul
@ping 127.0.0.1 -n 2 -w 1000 >nul
@ping 127.0.0.1 -n %1 -w 1000 >nul
@exit /B 0
""")
t.write("jamroot.jam", """\
import common ;
import os ;
if [ os.name ] = NT
{
SLEEP = call sleep.bat ;
}
else
{
SLEEP = sleep ;
}
rule copy { common.copy $(<) : $(>) ; }
actions copy { $(SLEEP) 1 }
make header2.h : header2.in : @copy ;
exe test : test2.cpp test1.cpp : <implicit-dependency>header2.h <include>. ;
""")
t.run_build_system(["-j2", "test"])
t.expect_addition("bin/$toolset/debug/header2.h")
t.expect_addition("bin/$toolset/debug/test1.obj")
t.expect_addition("bin/$toolset/debug/test2.obj")
t.expect_addition("bin/$toolset/debug/test.exe")
t.expect_nothing_more()
t.cleanup()
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