| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <gtest/gtest.h> |
| |
| #include "src/developer/shell/parser/ast_test.h" |
| #include "src/developer/shell/parser/combinators.h" |
| #include "src/developer/shell/parser/text_match.h" |
| |
| namespace shell::parser { |
| |
| TEST(CombinatorTest, Seq) { |
| const char* kTestString = "bobsmith"; |
| |
| auto result = Seq(Token("bob"), Token("smith"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(8u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob' 'smith')", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, Seq3) { |
| const char* kTestString = "bobsmithjones"; |
| |
| auto result = Seq(Token("bob"), Token("smith"), Token("jones"))(ParseResult(kTestString)); |
| |
| ASSERT_TRUE(result); |
| EXPECT_EQ(13u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob' 'smith' 'jones')", |
| result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, AltA) { |
| const char* kTestString = "bob"; |
| |
| auto result = Alt(Token("bob"), Token("smith"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(3u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob')", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, AltB) { |
| const char* kTestString = "smith"; |
| |
| auto result = Alt(Token("bob"), Token("smith"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(5u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('smith')", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, Not) { |
| const char* kTestString = "smith"; |
| |
| auto result = Not(Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(0u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("()", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, NotFail) { |
| const char* kTestString = "bob"; |
| |
| auto result = Not(Token("bob"))(ParseResult(kTestString)); |
| |
| EXPECT_FALSE(result); |
| } |
| |
| TEST(CombinatorTest, Maybe) { |
| const char* kTestString = "bob"; |
| |
| auto result = Maybe(Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(3u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob')", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, MaybeFail) { |
| const char* kTestString = "smith"; |
| |
| auto result = Maybe(Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(0u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("()", result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, Multi) { |
| const char* kTestString = "bobbobbobbob"; |
| |
| auto result = Multi(3, 5, Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(12u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob' 'bob' 'bob' 'bob')", |
| result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, MultiOverflow) { |
| const char* kTestString = "bobbobbobbobbobbobbob"; // 7 bobs. |
| |
| auto result = Multi(3, 5, Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(15u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob' 'bob' 'bob' 'bob' 'bob')", |
| result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, MultiFail) { |
| const char* kTestString = "bobbob"; |
| |
| auto result = Multi(3, 5, Token("bob"))(ParseResult(kTestString)); |
| ASSERT_FALSE(result); |
| } |
| |
| TEST(CombinatorTest, OnePlus) { |
| const char* kTestString = "bobbobbobbob"; |
| |
| auto result = OnePlus(Token("bob"))(ParseResult(kTestString)); |
| ASSERT_TRUE(result); |
| EXPECT_EQ(12u, result.offset()); |
| EXPECT_EQ(0u, result.errors()); |
| EXPECT_EQ("('bob' 'bob' 'bob' 'bob')", |
| result.Reduce<ast::TestNode>().node()->ToString(kTestString)); |
| } |
| |
| TEST(CombinatorTest, OnePlusFail) { |
| const char* kTestString = ""; |
| |
| auto result = OnePlus(Token("bob"))(ParseResult(kTestString)); |
| ASSERT_FALSE(result); |
| } |
| |
| } // namespace shell::parser |