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//===-- OperandGraphTest.cpp ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "OperandGraph.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
using testing::ElementsAre;
using testing::IsEmpty;
using testing::Not;
namespace exegesis {
namespace graph {
namespace {
static const auto In = Node::In();
static const auto Out = Node::Out();
TEST(OperandGraphTest, NoPath) {
Graph TheGraph;
EXPECT_THAT(TheGraph.getPathFrom(In, Out), IsEmpty());
}
TEST(OperandGraphTest, Connecting) {
Graph TheGraph;
TheGraph.connect(In, Out);
EXPECT_THAT(TheGraph.getPathFrom(In, Out), Not(IsEmpty()));
EXPECT_THAT(TheGraph.getPathFrom(In, Out), ElementsAre(In, Out));
}
TEST(OperandGraphTest, ConnectingThroughVariable) {
const Node Var = Node::Var(1);
Graph TheGraph;
TheGraph.connect(In, Var);
TheGraph.connect(Var, Out);
EXPECT_THAT(TheGraph.getPathFrom(In, Out), Not(IsEmpty()));
EXPECT_THAT(TheGraph.getPathFrom(In, Out), ElementsAre(In, Var, Out));
}
} // namespace
} // namespace graph
} // namespace exegesis
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