1 // Copyright 2020 The Tint Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include "src/symbol_table.h"
16
17 #include "gtest/gtest-spi.h"
18
19 namespace tint {
20 namespace {
21
22 using SymbolTableTest = testing::Test;
23
TEST_F(SymbolTableTest,GeneratesSymbolForName)24 TEST_F(SymbolTableTest, GeneratesSymbolForName) {
25 auto program_id = ProgramID::New();
26 SymbolTable s{program_id};
27 EXPECT_EQ(Symbol(1, program_id), s.Register("name"));
28 EXPECT_EQ(Symbol(2, program_id), s.Register("another_name"));
29 }
30
TEST_F(SymbolTableTest,DeduplicatesNames)31 TEST_F(SymbolTableTest, DeduplicatesNames) {
32 auto program_id = ProgramID::New();
33 SymbolTable s{program_id};
34 EXPECT_EQ(Symbol(1, program_id), s.Register("name"));
35 EXPECT_EQ(Symbol(2, program_id), s.Register("another_name"));
36 EXPECT_EQ(Symbol(1, program_id), s.Register("name"));
37 }
38
TEST_F(SymbolTableTest,ReturnsNameForSymbol)39 TEST_F(SymbolTableTest, ReturnsNameForSymbol) {
40 auto program_id = ProgramID::New();
41 SymbolTable s{program_id};
42 auto sym = s.Register("name");
43 EXPECT_EQ("name", s.NameFor(sym));
44 }
45
TEST_F(SymbolTableTest,ReturnsBlankForMissingSymbol)46 TEST_F(SymbolTableTest, ReturnsBlankForMissingSymbol) {
47 auto program_id = ProgramID::New();
48 SymbolTable s{program_id};
49 EXPECT_EQ("$2", s.NameFor(Symbol(2, program_id)));
50 }
51
TEST_F(SymbolTableTest,AssertsForBlankString)52 TEST_F(SymbolTableTest, AssertsForBlankString) {
53 EXPECT_FATAL_FAILURE(
54 {
55 auto program_id = ProgramID::New();
56 SymbolTable s{program_id};
57 s.Register("");
58 },
59 "internal compiler error");
60 }
61
62 } // namespace
63 } // namespace tint
64