dawn-cmake/src/reader/wgsl/parser_impl_variable_stmt_test.cc
Ben Clayton 627732c408 src/reader tests: Have parse() return a unique_ptr
The reason being that some tests called parse() twice, which will silently destruct the first parser.
Once the `Module` owns the AST nodes, the second call will end up deleting all the AST nodes. Tests would then perform use-after-free for the AST nodes belonging to the first parser / module.
There's no reason why the unique_ptr can't be returned, which is cleaner overall.

Bug: tint:335
Change-Id: I7ff2e9777a7ebeb76702f806294fe4c2c49bd7c9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33241
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
2020-11-18 19:40:00 +00:00

144 lines
4.6 KiB
C++

// Copyright 2020 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "gtest/gtest.h"
#include "src/ast/statement.h"
#include "src/ast/variable_decl_statement.h"
#include "src/reader/wgsl/parser_impl.h"
#include "src/reader/wgsl/parser_impl_test_helper.h"
namespace tint {
namespace reader {
namespace wgsl {
namespace {
TEST_F(ParserImplTest, VariableStmt_VariableDecl) {
auto p = parser("var a : i32;");
auto e = p->variable_stmt();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_TRUE(e->IsVariableDecl());
ASSERT_NE(e->variable(), nullptr);
EXPECT_EQ(e->variable()->name(), "a");
ASSERT_EQ(e->source().range.begin.line, 1u);
ASSERT_EQ(e->source().range.begin.column, 5u);
ASSERT_EQ(e->source().range.end.line, 1u);
ASSERT_EQ(e->source().range.end.column, 6u);
EXPECT_EQ(e->variable()->constructor(), nullptr);
}
TEST_F(ParserImplTest, VariableStmt_VariableDecl_WithInit) {
auto p = parser("var a : i32 = 1;");
auto e = p->variable_stmt();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_TRUE(e->IsVariableDecl());
ASSERT_NE(e->variable(), nullptr);
EXPECT_EQ(e->variable()->name(), "a");
ASSERT_EQ(e->source().range.begin.line, 1u);
ASSERT_EQ(e->source().range.begin.column, 5u);
ASSERT_EQ(e->source().range.end.line, 1u);
ASSERT_EQ(e->source().range.end.column, 6u);
ASSERT_NE(e->variable()->constructor(), nullptr);
EXPECT_TRUE(e->variable()->constructor()->IsConstructor());
}
TEST_F(ParserImplTest, VariableStmt_VariableDecl_Invalid) {
auto p = parser("var a : invalid;");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:9: unknown constructed type 'invalid'");
}
TEST_F(ParserImplTest, VariableStmt_VariableDecl_ConstructorInvalid) {
auto p = parser("var a : i32 = if(a) {}");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:15: missing constructor for variable declaration");
}
TEST_F(ParserImplTest, VariableStmt_Const) {
auto p = parser("const a : i32 = 1");
auto e = p->variable_stmt();
EXPECT_TRUE(e.matched);
EXPECT_FALSE(e.errored);
EXPECT_FALSE(p->has_error()) << p->error();
ASSERT_NE(e.value, nullptr);
ASSERT_TRUE(e->IsVariableDecl());
ASSERT_EQ(e->source().range.begin.line, 1u);
ASSERT_EQ(e->source().range.begin.column, 7u);
ASSERT_EQ(e->source().range.end.line, 1u);
ASSERT_EQ(e->source().range.end.column, 8u);
}
TEST_F(ParserImplTest, VariableStmt_Const_InvalidVarIdent) {
auto p = parser("const a : invalid = 1");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:11: unknown constructed type 'invalid'");
}
TEST_F(ParserImplTest, VariableStmt_Const_MissingEqual) {
auto p = parser("const a : i32 1");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:15: expected '=' for constant declaration");
}
TEST_F(ParserImplTest, VariableStmt_Const_MissingConstructor) {
auto p = parser("const a : i32 =");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:16: missing constructor for const declaration");
}
TEST_F(ParserImplTest, VariableStmt_Const_InvalidConstructor) {
auto p = parser("const a : i32 = if (a) {}");
auto e = p->variable_stmt();
EXPECT_FALSE(e.matched);
EXPECT_TRUE(e.errored);
EXPECT_EQ(e.value, nullptr);
EXPECT_TRUE(p->has_error());
EXPECT_EQ(p->error(), "1:17: missing constructor for const declaration");
}
} // namespace
} // namespace wgsl
} // namespace reader
} // namespace tint