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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/child_process.h>
using vespalib::ChildProcess;
TEST("simple run, ignore output") {
EXPECT_TRUE(ChildProcess::run("echo foo"));
}
TEST("simple run, ignore output, failure") {
EXPECT_TRUE(!ChildProcess::run("false"));
}
TEST("simple run, ignore output, timeout") {
EXPECT_TRUE(!ChildProcess::run("exec sleep 60", 10));
}
TEST("simple run") {
std::string out;
EXPECT_TRUE(ChildProcess::run("/bin/echo -n foo", out));
EXPECT_EQUAL(out, "foo");
}
TEST("simple run, strip single-line trailing newline") {
std::string out;
EXPECT_TRUE(ChildProcess::run("echo foo", out));
EXPECT_EQUAL(out, "foo");
}
TEST("simple run, don't strip multi-line output") {
std::string out;
EXPECT_TRUE(ChildProcess::run("perl -e 'print \"foo\\n\\n\"'", out));
EXPECT_EQUAL(out, "foo\n\n");
}
TEST("simple run with input") {
std::string in = "bar";
std::string out;
EXPECT_TRUE(ChildProcess::run(in, "cat", out));
EXPECT_EQUAL(out, "bar");
}
TEST("simple run with input, strip single-line trailing newline") {
std::string in = "bar\n";
std::string out;
EXPECT_TRUE(ChildProcess::run(in, "cat", out));
EXPECT_EQUAL(out, "bar");
}
TEST("simple run with input, don't strip multi-line output") {
std::string in = "bar\n\n";
std::string out;
EXPECT_TRUE(ChildProcess::run(in, "cat", out));
EXPECT_EQUAL("bar\n\n", out);
}
TEST_MT("simple run, partial output due to timeout", 2) {
std::string out;
std::vector<size_t> timeouts({150, 300, 3000, 6000, 60000});
const char *my_cmd = "exec perl -e '$| = 1; print \"foo\\\n\"; sleep(600); print \"bar\\\n\"'";
for (size_t timeout: timeouts) {
fprintf(stderr, "... verifying partial output with%s input (timeout = %zu)\n",
(thread_id == 0) ? "out" : "", timeout);
if (thread_id == 0) {
out.clear();
EXPECT_TRUE(!ChildProcess::run(my_cmd, out, timeout));
} else {
out.clear();
std::string in = "ignored\n";
EXPECT_TRUE(!ChildProcess::run(in, my_cmd, out, timeout));
}
if (out == "foo") {
break;
}
}
EXPECT_EQUAL(out, "foo");
}
TEST("proc failure") {
ChildProcess proc("false");
// read with length 0 will wait for output
EXPECT_TRUE(proc.read(NULL, 0) == 0);
EXPECT_TRUE(proc.wait(60000));
EXPECT_TRUE(!proc.running());
EXPECT_TRUE(proc.failed());
}
TEST("basic read/write") {
int x;
int read;
char buf[64];
ChildProcess proc("cat");
EXPECT_TRUE(proc.running());
EXPECT_TRUE(!proc.failed());
EXPECT_TRUE(proc.write("foo", 3));
for (x = 0, read = 0; x < 10 && read < 3; ++x) {
read += proc.read(buf + read, sizeof(buf) - read);
}
EXPECT_TRUE(read == 3 && memcmp(buf, "foo", 3) == 0);
EXPECT_TRUE(proc.write("bar!", 4));
for (x = 0, read = 0; x < 10 && read < 4; ++x) {
read += proc.read(buf + read, sizeof(buf) - read);
}
EXPECT_TRUE(read == 4 && memcmp(buf, "bar!", 4) == 0);
EXPECT_TRUE(!proc.eof()); // not eof yet
EXPECT_TRUE(proc.close()); // close stdin
EXPECT_TRUE(!proc.eof()); // eof not detected yet
EXPECT_TRUE(proc.read(buf, sizeof(buf)) == 0);
EXPECT_TRUE(proc.eof());
EXPECT_TRUE(proc.read(buf, sizeof(buf)) == 0);
EXPECT_TRUE(proc.wait(60000));
EXPECT_TRUE(!proc.running());
EXPECT_TRUE(!proc.failed());
}
TEST("continuos run, readLine") {
std::string str;
ChildProcess proc("cat");
EXPECT_TRUE(proc.running());
EXPECT_TRUE(!proc.failed());
EXPECT_TRUE(proc.write("foo\n", 4));
EXPECT_TRUE(proc.readLine(str));
EXPECT_EQUAL(str, "foo");
EXPECT_TRUE(proc.write("bar!\n", 5));
EXPECT_TRUE(proc.readLine(str));
EXPECT_EQUAL(str, "bar!");
EXPECT_TRUE(!proc.eof()); // not eof yet
EXPECT_TRUE(proc.close()); // close stdin
EXPECT_TRUE(!proc.eof()); // eof not detected yet
EXPECT_TRUE(!proc.readLine(str));
EXPECT_EQUAL(str, "");
EXPECT_TRUE(proc.eof());
EXPECT_TRUE(!proc.readLine(str));
EXPECT_EQUAL(str, "");
EXPECT_TRUE(proc.wait(60000));
EXPECT_TRUE(!proc.running());
EXPECT_TRUE(!proc.failed());
}
TEST("readLine, eof flushes last line") {
std::string str;
ChildProcess proc("cat");
EXPECT_TRUE(proc.running());
EXPECT_TRUE(!proc.failed());
EXPECT_TRUE(proc.write("foo\n", 4));
EXPECT_TRUE(proc.readLine(str));
EXPECT_EQUAL(str, "foo");
EXPECT_TRUE(proc.write("bar!", 4));
EXPECT_TRUE(!proc.eof()); // not eof yet
EXPECT_TRUE(proc.close()); // close stdin
EXPECT_TRUE(!proc.eof()); // eof not detected yet
EXPECT_TRUE(proc.readLine(str));
EXPECT_EQUAL(str, "bar!");
EXPECT_TRUE(proc.eof());
EXPECT_TRUE(!proc.readLine(str));
EXPECT_EQUAL(str, "");
EXPECT_TRUE(proc.wait(60000));
EXPECT_TRUE(!proc.running());
EXPECT_TRUE(!proc.failed());
}
TEST("long continuos run, readLine") {
std::string in;
std::string out;
ChildProcess proc("cat");
EXPECT_TRUE(proc.running());
EXPECT_TRUE(!proc.failed());
for (uint32_t i = 0; i < 10000; ++i) {
char num[32];
sprintf(num, "%d", i);
in.assign("long continous run, line ");
in.append(num).append("\n");
EXPECT_TRUE(proc.write(in.data(), in.length()));
in.erase(in.size() - 1, 1);
EXPECT_TRUE(proc.readLine(out));
EXPECT_EQUAL(in, out);
}
EXPECT_TRUE(proc.running());
EXPECT_TRUE(!proc.failed());
}
TEST_MAIN_WITH_PROCESS_PROXY() { TEST_RUN_ALL(); }
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