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/*******************************************************************\
Module: structured_trace_util
Author: Diffblue
\*******************************************************************/
#include <testing-utils/use_catch.h>
#include <goto-programs/goto_trace.h>
#include <goto-programs/structured_trace_util.h>
source_locationt simple_location(const std::string &file, unsigned line)
{
source_locationt location;
location.set_file(file);
location.set_line(line);
return location;
}
goto_programt::targett add_instruction(
const source_locationt &location,
goto_programt::instructionst &instructions)
{
goto_programt::instructiont instruction{
codet{ID_nil},
location,
goto_program_instruction_typet::NO_INSTRUCTION_TYPE,
{},
{}};
instruction.location_number = instructions.size();
instructions.push_back(instruction);
return std::next(instructions.begin(), instruction.location_number);
}
TEST_CASE("structured_trace_util", "[core][util][trace]")
{
goto_programt::instructionst instructions;
source_locationt nil_location;
const source_locationt unrelated_location = simple_location("foo.c", 1);
source_locationt no_file_location;
no_file_location.set_line(1);
const source_locationt basic_location = simple_location("test.c", 1);
const source_locationt loop_head_location = simple_location("test.c", 2);
const source_locationt back_edge_location = simple_location("test.c", 3);
// 0 # normal_location
add_instruction(basic_location, instructions);
// 1 # loop_head
auto loop_head = add_instruction(loop_head_location, instructions);
// 2: goto 1 # back_edge
instructions.emplace_back(
goto_programt::make_goto(loop_head, back_edge_location));
auto back_edge = std::prev(instructions.end());
back_edge->location_number = 2;
loop_head->incoming_edges.insert(back_edge);
// 3: no_location
goto_programt::instructiont no_location;
no_location.location_number = 3;
instructions.push_back(no_location);
// 4: no_file
add_instruction(no_file_location, instructions);
SECTION("location-only steps")
{
goto_trace_stept step;
step.step_nr = 1;
step.thread_nr = 2;
step.hidden = true;
SECTION("Simple step")
{
step.pc = instructions.begin();
const auto parsed_step = default_step(step, unrelated_location);
REQUIRE(parsed_step);
REQUIRE(parsed_step->step_number == 1);
REQUIRE(parsed_step->thread_number == 2);
REQUIRE(parsed_step->hidden);
REQUIRE(parsed_step->kind == default_step_kindt::LOCATION_ONLY);
REQUIRE(parsed_step->location == basic_location);
}
SECTION("Invalid previous step")
{
step.pc = instructions.begin();
const auto parsed_step = default_step(step, nil_location);
REQUIRE(parsed_step);
REQUIRE(parsed_step->step_number == 1);
REQUIRE(parsed_step->thread_number == 2);
REQUIRE(parsed_step->hidden);
REQUIRE(parsed_step->kind == default_step_kindt::LOCATION_ONLY);
REQUIRE(parsed_step->location == basic_location);
}
SECTION("Duplicate step")
{
step.pc = instructions.begin();
const auto parsed_step = default_step(step, basic_location);
REQUIRE_FALSE(parsed_step);
}
SECTION("No source location")
{
step.pc = std::next(instructions.begin(), 3);
const auto parsed_step = default_step(step, unrelated_location);
REQUIRE_FALSE(parsed_step);
}
SECTION("No file")
{
step.pc = std::next(instructions.begin(), 4);
const auto parsed_step = default_step(step, unrelated_location);
REQUIRE_FALSE(parsed_step);
}
}
SECTION("Loop head steps")
{
goto_trace_stept step;
step.step_nr = 1;
step.thread_nr = 2;
step.hidden = false;
step.pc = std::next(instructions.begin(), 1);
SECTION("Simple step")
{
const auto parsed_step = default_step(step, unrelated_location);
REQUIRE(parsed_step);
REQUIRE(parsed_step->step_number == 1);
REQUIRE(parsed_step->thread_number == 2);
REQUIRE_FALSE(parsed_step->hidden);
REQUIRE(parsed_step->kind == default_step_kindt::LOOP_HEAD);
REQUIRE(parsed_step->location == loop_head_location);
}
SECTION("Duplicate step")
{
const auto parsed_step = default_step(step, loop_head_location);
REQUIRE(parsed_step);
REQUIRE(parsed_step->step_number == 1);
REQUIRE(parsed_step->thread_number == 2);
REQUIRE_FALSE(parsed_step->hidden);
REQUIRE(parsed_step->kind == default_step_kindt::LOOP_HEAD);
REQUIRE(parsed_step->location == loop_head_location);
}
}
}
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