// Copyright 2020 The Dawn & Tint Authors
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#include "src/tint/utils/symbol/symbol_table.h"

#include "gtest/gtest-spi.h"

namespace tint {
namespace {

using SymbolTableTest = testing::Test;

TEST_F(SymbolTableTest, GeneratesSymbolForName) {
    auto generation_id = GenerationID::New();
    SymbolTable s{generation_id};
    EXPECT_EQ(Symbol(1, generation_id, "name"), s.Register("name"));
    EXPECT_EQ(Symbol(2, generation_id, "another_name"), s.Register("another_name"));
}

TEST_F(SymbolTableTest, DeduplicatesNames) {
    auto generation_id = GenerationID::New();
    SymbolTable s{generation_id};
    EXPECT_EQ(Symbol(1, generation_id, "name"), s.Register("name"));
    EXPECT_EQ(Symbol(2, generation_id, "another_name"), s.Register("another_name"));
    EXPECT_EQ(Symbol(1, generation_id, "name"), s.Register("name"));
}

TEST_F(SymbolTableTest, AssertsForBlankString) {
    EXPECT_FATAL_FAILURE(
        {
            auto generation_id = GenerationID::New();
            SymbolTable s{generation_id};
            s.Register("");
        },
        "internal compiler error");
}

}  // namespace
}  // namespace tint