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#include <iostream>
#include <sstream>
#include "format_string.h"
#include "required_resources.h"
#include "struct.h"
#include "types.h"
#include "gtest/gtest.h"
namespace bpftrace::test {
// ========================================================================
// It's a bit overkill to completely test every field in `RequiredResources`
// so for these tests we opt to get coverage on every type we serialize.
// ========================================================================
TEST(required_resources, round_trip_simple)
{
std::ostringstream serialized(std::ios::binary);
{
RequiredResources r;
r.probe_ids.emplace_back("itsastring");
r.save_state(serialized);
}
std::istringstream input(serialized.str());
{
RequiredResources r;
r.load_state(input);
ASSERT_EQ(r.probe_ids.size(), 1UL);
EXPECT_EQ(r.probe_ids[0], "itsastring");
}
}
TEST(required_resources, round_trip_field_sized_type)
{
std::ostringstream serialized(std::ios::binary);
{
RequiredResources r;
r.system_args.emplace_back(FormatString("field0"),
std::vector{ Field{
.name = "myfield",
.type = CreateInt32(),
.offset = 123,
.bitfield = Bitfield(1, 2, 0xFF),
} });
r.save_state(serialized);
}
std::istringstream input(serialized.str());
{
RequiredResources r;
r.load_state(input);
ASSERT_EQ(r.system_args.size(), 1UL);
EXPECT_EQ(std::get<0>(r.system_args[0]).str(), "field0");
auto &fields = std::get<1>(r.system_args[0]);
ASSERT_EQ(fields.size(), 1UL);
auto &field = fields[0];
EXPECT_EQ(field.name, "myfield");
EXPECT_TRUE(field.type.IsIntTy());
EXPECT_EQ(field.type.GetSize(), 4UL);
EXPECT_EQ(field.offset, 123);
// clang-tidy does not recognize ASSERT_*() terminates testcase
// NOLINTBEGIN(bugprone-unchecked-optional-access)
ASSERT_TRUE(field.bitfield.has_value());
EXPECT_EQ(field.bitfield->read_bytes, 1UL);
EXPECT_EQ(field.bitfield->access_rshift, 2UL);
EXPECT_EQ(field.bitfield->mask, 0xFFUL);
// NOLINTEND(bugprone-unchecked-optional-access)
}
}
TEST(required_resources, round_trip_map_info)
{
std::ostringstream serialized(std::ios::binary);
{
MapInfo info{
.key_type = CreateNone(),
.value_type = CreateInet(3),
.detail =
LinearHistogramArgs{
.min = 99,
.max = 123,
.step = 33,
},
};
info.key_type = CreateInt32();
RequiredResources r;
r.maps_info.insert({ "mymap", info });
r.save_state(serialized);
}
std::istringstream input(serialized.str());
{
RequiredResources r;
r.load_state(input);
ASSERT_EQ(r.maps_info.count("mymap"), 1UL);
const auto &map_info = r.maps_info["mymap"];
EXPECT_TRUE(map_info.value_type.IsInetTy());
EXPECT_EQ(map_info.value_type.GetSize(), 3UL);
EXPECT_TRUE(map_info.key_type.IsIntegerTy());
EXPECT_EQ(map_info.key_type.GetSize(), 4);
const auto &lhist_args = std::get<LinearHistogramArgs>(map_info.detail);
EXPECT_EQ(lhist_args.min, 99);
EXPECT_EQ(lhist_args.max, 123);
EXPECT_EQ(lhist_args.step, 33);
}
}
TEST(required_resources, round_trip_probes)
{
std::ostringstream serialized(std::ios::binary);
{
RequiredResources r;
Probe p;
p.type = ProbeType::hardware;
p.path = "mypath";
p.index = 3;
r.special_probes["test"] = std::move(p);
r.save_state(serialized);
}
std::istringstream input(serialized.str());
{
RequiredResources r;
r.load_state(input);
ASSERT_EQ(r.special_probes.size(), 1UL);
auto &probe = r.special_probes["test"];
EXPECT_EQ(probe.type, ProbeType::hardware);
EXPECT_EQ(probe.path, "mypath");
EXPECT_EQ(probe.index, 3);
}
}
TEST(required_resources, round_trip_multiple_members)
{
std::ostringstream serialized(std::ios::binary);
{
RequiredResources r;
r.join_args.emplace_back("joinarg0");
r.time_args.emplace_back("timearg0");
r.save_state(serialized);
}
std::istringstream input(serialized.str());
{
RequiredResources r;
r.load_state(input);
ASSERT_EQ(r.join_args.size(), 1UL);
EXPECT_EQ(r.join_args[0], "joinarg0");
ASSERT_EQ(r.time_args.size(), 1UL);
EXPECT_EQ(r.time_args[0], "timearg0");
}
}
} // namespace bpftrace::test
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