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#include <stdexcept>
#include <catch2/catch_all.hpp>
#include <cgraph++/AGraph.h>
TEST_CASE("AGraph can be constructed from DOT source and has an underlying C "
"data structure") {
CGraph::AGraph g{"graph {a}"};
REQUIRE(g.c_struct() != nullptr);
}
TEST_CASE("AGraph constructed from an empty string throws an exception") {
REQUIRE_THROWS_AS(CGraph::AGraph(""), std::runtime_error);
}
TEST_CASE("AGraph constructed from bad DOT source throws an exception") {
REQUIRE_THROWS_AS(CGraph::AGraph("THIS_SHOULD_GENERATE_A_SYNTAX_ERROR"),
std::runtime_error);
}
TEST_CASE("AGraph can be move constructed") {
CGraph::AGraph g{"graph {a}"};
const auto c_ptr = g.c_struct();
REQUIRE(c_ptr != nullptr);
auto other{std::move(g)};
REQUIRE(other.c_struct() == c_ptr);
}
TEST_CASE("AGraph can be move assigned") {
CGraph::AGraph g{"graph {a}"};
const auto c_ptr = g.c_struct();
REQUIRE(c_ptr != nullptr);
auto other = CGraph::AGraph("graph {b}");
const auto other_c_ptr = other.c_struct();
REQUIRE(other_c_ptr != nullptr);
REQUIRE(other_c_ptr != c_ptr);
other = std::move(g);
REQUIRE(other.c_struct() == c_ptr);
}
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