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Greatly expand system() shell code features

Browse source 
The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
This commit is contained in:
Justine Tunney 2022-10-11 21:06:27 -07:00
parent e7329b7cba
commit b41f91c658
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GPG key ID: BE714B4575D6E328
80 changed files with 1370 additions and 344 deletions
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76
test/libc/stdio/system_test.c
View file

@ -29,27 +29,79 @@
char testlib_enable_tmp_setup_teardown;
TEST(system, testStdoutRedirect) {
int ws;
testlib_extract("/zip/echo.com", "echo.com", 0755);
TEST(system, haveShell) {
ASSERT_TRUE(system(0));
ws = system("./echo.com hello >hello.txt");
ASSERT_TRUE(WIFEXITED(ws));
ASSERT_EQ(0, WEXITSTATUS(ws));
}
TEST(system, echo) {
ASSERT_EQ(0, system("echo hello >\"hello there.txt\""));
EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
}
TEST(system, exit) {
ASSERT_EQ(123, WEXITSTATUS(system("exit 123")));
}
TEST(system, testStdoutRedirect) {
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_EQ(0, system("./echo.com hello >hello.txt"));
EXPECT_STREQ("hello\n", _gc(xslurp("hello.txt", 0)));
}
TEST(system, testStdoutRedirect_withSpacesInFilename) {
int ws;
testlib_extract("/zip/echo.com", "echo.com", 0755);
ASSERT_TRUE(system(0));
ws = system("./echo.com hello >\"hello there.txt\"");
ASSERT_TRUE(WIFEXITED(ws));
ASSERT_EQ(0, WEXITSTATUS(ws));
ASSERT_EQ(0, system("./echo.com hello >\"hello there.txt\""));
EXPECT_STREQ("hello\n", _gc(xslurp("hello there.txt", 0)));
}
BENCH(system, bench) {
testlib_extract("/zip/echo.com", "echo.com", 0755);
EZBENCH2("system", donothing, system("./echo.com hi >/dev/null"));
EZBENCH2("system cmd", donothing, system("./echo.com hi >/dev/null"));
EZBENCH2("cocmd echo", donothing, system("echo hi >/dev/null"));
EZBENCH2("cocmd exit", donothing, system("exit"));
}
TEST(system, and) {
ASSERT_EQ(1, WEXITSTATUS(system("false && false")));
ASSERT_EQ(1, WEXITSTATUS(system("true&& false")));
ASSERT_EQ(1, WEXITSTATUS(system("false &&true")));
ASSERT_EQ(0, WEXITSTATUS(system("true&&true")));
}
TEST(system, or) {
ASSERT_EQ(1, WEXITSTATUS(system("false || false")));
ASSERT_EQ(0, WEXITSTATUS(system("true|| false")));
ASSERT_EQ(0, WEXITSTATUS(system("false ||true")));
ASSERT_EQ(0, WEXITSTATUS(system("true||true")));
}
TEST(system, async1) {
ASSERT_EQ(123, WEXITSTATUS(system("exit 123 & "
"wait $!")));
}
TEST(system, async4) {
ASSERT_EQ(0, WEXITSTATUS(system("echo a >a & "
"echo b >b & "
"echo c >c & "
"echo d >d & "
"wait")));
ASSERT_TRUE(fileexists("a"));
ASSERT_TRUE(fileexists("b"));
ASSERT_TRUE(fileexists("c"));
ASSERT_TRUE(fileexists("d"));
}
TEST(system, equals) {
setenv("var", "wand", true);
ASSERT_EQ(0, WEXITSTATUS(system("test a = a")));
ASSERT_EQ(1, WEXITSTATUS(system("test a = b")));
ASSERT_EQ(0, WEXITSTATUS(system("test x$var = xwand")));
ASSERT_EQ(0, WEXITSTATUS(system("[ a = a ]")));
ASSERT_EQ(1, WEXITSTATUS(system("[ a = b ]")));
}
TEST(system, notequals) {
ASSERT_EQ(1, WEXITSTATUS(system("test a != a")));
ASSERT_EQ(0, WEXITSTATUS(system("test a != b")));
}