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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vespa/log/log.h>
LOG_SETUP("make_fixture_macros");
void out(const char *str) { fprintf(stdout, "%s", str); }
void out_n(const char *str, int n) { fprintf(stdout, str, n); }
void out_nn(const char *str, int n) { fprintf(stdout, str, n, n); }
void out_nnn(const char *str, int n) { fprintf(stdout, str, n, n, n); }
void out_if(const char *str, bool cond) { if (cond) { out(str); } }
void out_opt(bool cond, const char *str1, const char *str2) {
if (cond) {
out(str1);
} else {
out(str2);
}
}
void out_list(const char *pre, const char *str, const char *sep, const char *post, int n, int x) {
out_if(pre, n > 0);
for (int i = 0; i < n; ++i) {
out_if(sep, i > 0);
switch (x) {
case 0: out(str); break;
case 1: out_n(str, i + 1); break;
case 2: out_nn(str, i + 1); break;
default: LOG_ABORT("should not be reached");
}
}
out_if(post, n > 0);
}
void out_fff(int n) {
out_list("_", "F", "", "", n, 0);
}
void out_list_n(const char *pre, const char *str, const char *post, int n) {
out_list(pre, str, ", ", post, n, 1);
}
void out_list_nn(const char *pre, const char *str, const char *post, int n) {
out_list(pre, str, ", ", post, n, 2);
}
void make_wrapper(int n) {
out_list_n(" template <", "typename F%d", "> \\\n", n);
out(" struct Test : vespalib::TestFixtureWrapper { \\\n");
out_if(" F1 &f; \\\n", n == 1);
out_list("", " F%d &f%d; \\\n", "", "", n, 2);
out_list_nn(" Test(", "F%d &f%d_in", ") : ", n);
out_if("f(f1_in), ", n == 1);
out_list_nn("", "f%d(f%d_in)", " {} \\\n", n);
out(" void test_entry_point() override; \\\n");
out(" }; \\\n");
}
void make_perform(int n) {
out(" Test");
out_list_n("<", "F%d", ">", n);
out(" test");
out_list_n("(", "f%d", ")", n);
out("; \\\n");
out(" return runTest(test, threads); \\\n");
}
void make_dispatch(int n) {
for (int i = n; i > 0; --i) {
out_list_n(" template <", "typename F%d", "> \\\n", i);
out_n(" bool dispatch%d(", i);
out_list_nn("", "F%d &f%d", ", ", i - 1);
out_nn("F%d *_f%d_ptr_) { \\\n", i);
out_nnn(" std::unique_ptr<F%d> _f%d_ap_(_f%d_ptr_); \\\n", i);
out_nnn(" F%d &f%d = *_f%d_ap_; \\\n", i);
out_if(" size_t num_threads(threads); (void) num_threads; \\\n", i < n);
if (i < n) {
out_n(" return dispatch%d(", i + 1);
out_list_n("", "f%d", ", ", i);
out_n("new fixture%d); \\\n", i + 1);
} else {
make_perform(n);
}
out(" } \\\n");
}
}
void make_macro_impl(int n) {
fprintf(stdout, "// common test macro implementation for %d test fixtures BEGIN\n\n", n);
out("#define TEST");
out_fff(n);
out("_IMPL(name, ignore, threads");
out_list_n(", ", "fixture%d", "", n);
out(") \\\n");
out("namespace { \\\n");
out("struct TEST_CAT(TestKitHook, __LINE__) : vespalib::TestHook { \\\n");
out(" TEST_CAT(TestKitHook, __LINE__)() : vespalib::TestHook(__FILE__, name, ignore) {} \\\n");
make_wrapper(n);
make_dispatch(n);
out(" bool run() override { \\\n");
out(" TEST_STATE(name); \\\n");
out_if(" size_t num_threads(threads); (void) num_threads; \\\n", n > 0);
if (n > 0) {
out(" return dispatch1(new fixture1); \\\n");
} else {
make_perform(0);
}
out(" } \\\n");
out("}; \\\n");
out("TEST_CAT(TestKitHook, __LINE__) TEST_CAT(testKitHook, __LINE__); \\\n");
out("} /* end of unnamed namespace */ \\\n");
out_list_n("template <", "typename F%d", "> \\\n", n);
out("void TEST_CAT(TestKitHook, __LINE__)::Test");
out_list_n("<", "F%d", ">", n);
out("::test_entry_point()\n");
fprintf(stdout, "\n// common test macro implementation for %d test fixtures END\n\n", n);
}
void make_macro_wire(int n) {
fprintf(stdout, "// test macro variants for %d test fixtures BEGIN\n\n", n);
for (int ignore = 0; ignore < 2; ++ignore) {
for (int mt = 0; mt < 2; ++mt) {
out("#define ");
out_if("IGNORE_", ignore);
out("TEST");
out_if("_MT", mt);
out_fff(n);
out("(name");
out_if(", threads", mt);
out_list_n(", ", "fixture%d", "", n);
out(") TEST");
out_fff(n);
out("_IMPL(name");
out_opt(ignore, ", true", ", false");
out_opt(mt, ", threads", ", 1");
out_list_n(", ", "fixture%d", "", n);
out(") // NOLINT\n");
}
}
fprintf(stdout, "\n// test macro variants for %d test fixtures END\n\n", n);
}
int main(int argc, char **argv) {
if (argc != 2) {
fprintf(stderr, "usage: %s <N>\n", argv[0]);
fprintf(stderr, " produce macros for up to N (minimum 3) test fixtures\n");
return 1;
}
int n = std::max(3, atoi(argv[1]));
fprintf(stdout, "// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.\n");
fprintf(stdout, "// macros for up to %d test fixtures, generated by "
"vespalib/testkit/make_fixture_macros\n\n", n);
for (int i = 0; i <= n; ++i) {
make_macro_impl(i);
make_macro_wire(i);
}
return 0;
}
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