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#include <gtest/gtest.h>
#include <pog/token_builder.h>
using namespace pog;
class TestTokenBuilder : public ::testing::Test
{
public:
TestTokenBuilder() : grammar(), tokenizer(&grammar) {}
Grammar<int> grammar;
Tokenizer<int> tokenizer;
};
TEST_F(TestTokenBuilder,
Initialization) {
TokenBuilder<int> tb(&grammar, &tokenizer);
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 1u);
}
TEST_F(TestTokenBuilder,
NoTokens) {
TokenBuilder<int> tb(&grammar, &tokenizer);
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 1u);
}
TEST_F(TestTokenBuilder,
SingleTokenWithoutAnything) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
}
TEST_F(TestTokenBuilder,
SingleTokenWithSymbol) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.symbol("ABC");
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 3u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(grammar.get_symbols()[2]->get_name(), "ABC");
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
}
TEST_F(TestTokenBuilder,
SingleTokenWithAction) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.action([](std::string_view) { return 42; });
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
EXPECT_TRUE(tokenizer.get_tokens()[1]->has_action());
EXPECT_EQ(tokenizer.get_tokens()[1]->perform_action("xyz"), 42);
}
TEST_F(TestTokenBuilder,
SingleTokenWithFullwordSpecifier) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.fullword();
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc(\\b|$)");
}
TEST_F(TestTokenBuilder,
SingleTokenWithStates) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.states("state1", "state2");
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
}
TEST_F(TestTokenBuilder,
SingleTokenWithTransitionToState) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.enter_state("state1");
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
EXPECT_TRUE(tokenizer.get_tokens()[1]->has_transition_to_state());
EXPECT_EQ(tokenizer.get_tokens()[1]->get_transition_to_state(), "state1");
}
TEST_F(TestTokenBuilder,
SingleTokenWithPrecedence) {
TokenBuilder<int> tb(&grammar, &tokenizer, "abc");
tb.symbol("ABC");
tb.precedence(1, Associativity::Left);
tb.done();
EXPECT_EQ(grammar.get_symbols().size(), 3u);
EXPECT_EQ(tokenizer.get_tokens().size(), 2u);
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
EXPECT_TRUE(grammar.get_symbols()[2]->has_precedence());
EXPECT_EQ(grammar.get_symbols()[2]->get_precedence(), (Precedence{1, Associativity::Left}));
}
TEST_F(TestTokenBuilder,
MultipleTokensDescription) {
TokenBuilder<int> tb1(&grammar, &tokenizer, "abc");
tb1.symbol("ABC");
tb1.description("abc token");
tb1.done();
TokenBuilder<int> tb2(&grammar, &tokenizer, "def");
tb2.symbol("DEF");
tb2.done();
EXPECT_EQ(grammar.get_symbols().size(), 4u);
EXPECT_EQ(tokenizer.get_tokens().size(), 3u);
EXPECT_EQ(grammar.get_symbols()[2]->get_name(), "ABC");
EXPECT_EQ(grammar.get_symbols()[2]->get_description(), "abc token");
EXPECT_EQ(grammar.get_symbols()[3]->get_name(), "DEF");
EXPECT_EQ(grammar.get_symbols()[3]->get_description(), "DEF");
EXPECT_EQ(tokenizer.get_tokens()[1]->get_pattern(), "abc");
EXPECT_EQ(tokenizer.get_tokens()[2]->get_pattern(), "def");
}
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