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Copy pathtest_delete.cpp
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335 lines (288 loc) · 12.3 KB
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#include <gtest/gtest.h>
#include "sql_parser/parser.h"
#include "sql_parser/emitter.h"
using namespace sql_parser;
class MySQLDeleteTest : public ::testing::Test {
protected:
Parser<Dialect::MySQL> parser;
int child_count(const AstNode* node) {
int n = 0;
for (const AstNode* c = node->first_child; c; c = c->next_sibling) ++n;
return n;
}
const AstNode* find_child(const AstNode* node, NodeType type) {
for (const AstNode* c = node->first_child; c; c = c->next_sibling) {
if (c->type == type) return c;
}
return nullptr;
}
std::string round_trip(const char* sql) {
auto r = parser.parse(sql, strlen(sql));
if (!r.ast) return "[PARSE_FAILED]";
Emitter<Dialect::MySQL> emitter(parser.arena());
emitter.emit(r.ast);
StringRef result = emitter.result();
return std::string(result.ptr, result.len);
}
};
// ========== Basic DELETE ==========
TEST_F(MySQLDeleteTest, SimpleDelete) {
auto r = parser.parse("DELETE FROM users WHERE id = 1", 30);
EXPECT_EQ(r.status, ParseResult::OK);
EXPECT_EQ(r.stmt_type, StmtType::DELETE_STMT);
ASSERT_NE(r.ast, nullptr);
EXPECT_EQ(r.ast->type, NodeType::NODE_DELETE_STMT);
}
TEST_F(MySQLDeleteTest, DeleteNoWhere) {
auto r = parser.parse("DELETE FROM users", 17);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
auto* where = find_child(r.ast, NodeType::NODE_WHERE_CLAUSE);
EXPECT_EQ(where, nullptr);
}
TEST_F(MySQLDeleteTest, DeleteQualifiedTable) {
auto r = parser.parse("DELETE FROM mydb.users WHERE id = 1", 35);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(MySQLDeleteTest, DeleteComplexWhere) {
const char* sql = "DELETE FROM users WHERE status = 'inactive' AND last_login < '2020-01-01'";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
// ========== MySQL Options ==========
TEST_F(MySQLDeleteTest, DeleteLowPriority) {
auto r = parser.parse("DELETE LOW_PRIORITY FROM users WHERE id = 1", 44);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
auto* opts = find_child(r.ast, NodeType::NODE_STMT_OPTIONS);
ASSERT_NE(opts, nullptr);
}
TEST_F(MySQLDeleteTest, DeleteQuick) {
auto r = parser.parse("DELETE QUICK FROM users WHERE id = 1", 36);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(MySQLDeleteTest, DeleteIgnore) {
auto r = parser.parse("DELETE IGNORE FROM users WHERE id = 1", 37);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(MySQLDeleteTest, DeleteAllOptions) {
auto r = parser.parse("DELETE LOW_PRIORITY QUICK IGNORE FROM users WHERE id = 1", 56);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
// ========== MySQL ORDER BY + LIMIT ==========
TEST_F(MySQLDeleteTest, DeleteOrderByLimit) {
const char* sql = "DELETE FROM users WHERE active = 0 ORDER BY created_at ASC LIMIT 100";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
EXPECT_NE(find_child(r.ast, NodeType::NODE_ORDER_BY_CLAUSE), nullptr);
EXPECT_NE(find_child(r.ast, NodeType::NODE_LIMIT_CLAUSE), nullptr);
}
TEST_F(MySQLDeleteTest, DeleteLimitOnly) {
auto r = parser.parse("DELETE FROM users WHERE active = 0 LIMIT 100", 45);
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
EXPECT_NE(find_child(r.ast, NodeType::NODE_LIMIT_CLAUSE), nullptr);
}
// ========== MySQL Multi-Table Form 1: DELETE t1, t2 FROM ... ==========
TEST_F(MySQLDeleteTest, MultiTableForm1Single) {
const char* sql = "DELETE t1 FROM t1 JOIN t2 ON t1.id = t2.fk WHERE t2.status = 0";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(MySQLDeleteTest, MultiTableForm1Multiple) {
const char* sql = "DELETE t1, t2 FROM t1 JOIN t2 ON t1.id = t2.fk WHERE t1.status = 0";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
// ========== MySQL Multi-Table Form 2: DELETE FROM t1, t2 USING ... ==========
TEST_F(MySQLDeleteTest, MultiTableForm2) {
const char* sql = "DELETE FROM t1, t2 USING t1 JOIN t2 ON t1.id = t2.fk WHERE t1.status = 0";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(MySQLDeleteTest, MultiTableForm2Single) {
const char* sql = "DELETE FROM t1 USING t1 JOIN t2 ON t1.id = t2.fk WHERE t2.bad = 1";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
// ========== PostgreSQL DELETE ==========
class PgSQLDeleteTest : public ::testing::Test {
protected:
Parser<Dialect::PostgreSQL> parser;
int child_count(const AstNode* node) {
int n = 0;
for (const AstNode* c = node->first_child; c; c = c->next_sibling) ++n;
return n;
}
const AstNode* find_child(const AstNode* node, NodeType type) {
for (const AstNode* c = node->first_child; c; c = c->next_sibling) {
if (c->type == type) return c;
}
return nullptr;
}
std::string round_trip(const char* sql) {
auto r = parser.parse(sql, strlen(sql));
if (!r.ast) return "[PARSE_FAILED]";
Emitter<Dialect::PostgreSQL> emitter(parser.arena());
emitter.emit(r.ast);
StringRef result = emitter.result();
return std::string(result.ptr, result.len);
}
};
TEST_F(PgSQLDeleteTest, SimpleDelete) {
auto r = parser.parse("DELETE FROM users WHERE id = 1", 30);
EXPECT_EQ(r.status, ParseResult::OK);
EXPECT_EQ(r.stmt_type, StmtType::DELETE_STMT);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(PgSQLDeleteTest, DeleteUsing) {
const char* sql = "DELETE FROM users USING orders WHERE users.id = orders.user_id AND orders.bad = 1";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
auto* using_clause = find_child(r.ast, NodeType::NODE_DELETE_USING_CLAUSE);
ASSERT_NE(using_clause, nullptr);
}
TEST_F(PgSQLDeleteTest, DeleteUsingMultiple) {
const char* sql = "DELETE FROM t1 USING t2, t3 WHERE t1.id = t2.fk AND t2.id = t3.fk";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
TEST_F(PgSQLDeleteTest, DeleteReturning) {
const char* sql = "DELETE FROM users WHERE id = 1 RETURNING *";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
auto* ret = find_child(r.ast, NodeType::NODE_RETURNING_CLAUSE);
ASSERT_NE(ret, nullptr);
}
TEST_F(PgSQLDeleteTest, DeleteReturningColumns) {
const char* sql = "DELETE FROM users WHERE id = 1 RETURNING id, name";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
auto* ret = find_child(r.ast, NodeType::NODE_RETURNING_CLAUSE);
ASSERT_NE(ret, nullptr);
EXPECT_EQ(child_count(ret), 2);
}
TEST_F(PgSQLDeleteTest, DeleteUsingReturning) {
const char* sql = "DELETE FROM users USING orders "
"WHERE users.id = orders.user_id RETURNING users.id";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
EXPECT_NE(find_child(r.ast, NodeType::NODE_DELETE_USING_CLAUSE), nullptr);
EXPECT_NE(find_child(r.ast, NodeType::NODE_RETURNING_CLAUSE), nullptr);
}
TEST_F(PgSQLDeleteTest, DeleteWithAlias) {
const char* sql = "DELETE FROM users AS u WHERE u.id = 1";
auto r = parser.parse(sql, strlen(sql));
EXPECT_EQ(r.status, ParseResult::OK);
ASSERT_NE(r.ast, nullptr);
}
// ========== Bulk data-driven tests ==========
struct DeleteTestCase {
const char* sql;
const char* description;
};
static const DeleteTestCase mysql_delete_bulk_cases[] = {
{"DELETE FROM t", "simple no where"},
{"DELETE FROM t WHERE a = 1", "simple with where"},
{"DELETE FROM t WHERE a > 1 AND b < 10", "complex where"},
{"DELETE FROM db.t WHERE a = 1", "qualified table"},
{"DELETE LOW_PRIORITY FROM t WHERE a = 1", "low priority"},
{"DELETE QUICK FROM t WHERE a = 1", "quick"},
{"DELETE IGNORE FROM t WHERE a = 1", "ignore"},
{"DELETE LOW_PRIORITY QUICK IGNORE FROM t WHERE a = 1", "all options"},
{"DELETE FROM t WHERE a = 1 ORDER BY b LIMIT 10", "order by limit"},
{"DELETE FROM t WHERE a = 1 LIMIT 100", "limit only"},
{"DELETE t1 FROM t1 JOIN t2 ON t1.id = t2.fk WHERE t2.x = 0", "multi-table form 1"},
{"DELETE t1, t2 FROM t1 JOIN t2 ON t1.id = t2.fk", "multi-table form 1 multi target"},
{"DELETE FROM t1 USING t1 JOIN t2 ON t1.id = t2.fk WHERE t2.x = 0", "multi-table form 2"},
{"DELETE FROM t1, t2 USING t1 JOIN t2 ON t1.id = t2.fk", "multi-table form 2 multi target"},
};
TEST(MySQLDeleteBulk, AllCasesParseSuccessfully) {
Parser<Dialect::MySQL> parser;
for (const auto& tc : mysql_delete_bulk_cases) {
auto r = parser.parse(tc.sql, strlen(tc.sql));
EXPECT_EQ(r.status, ParseResult::OK)
<< "Failed: " << tc.description << "\n SQL: " << tc.sql;
EXPECT_EQ(r.stmt_type, StmtType::DELETE_STMT)
<< "Failed: " << tc.description;
EXPECT_NE(r.ast, nullptr)
<< "Failed: " << tc.description << "\n SQL: " << tc.sql;
}
}
static const DeleteTestCase pgsql_delete_bulk_cases[] = {
{"DELETE FROM t", "simple no where"},
{"DELETE FROM t WHERE a = 1", "simple with where"},
{"DELETE FROM t WHERE a > 1 AND b < 10", "complex where"},
{"DELETE FROM t AS x WHERE x.a = 1", "alias"},
{"DELETE FROM t USING t2 WHERE t.id = t2.fk", "using single"},
{"DELETE FROM t USING t2, t3 WHERE t.id = t2.fk AND t2.id = t3.fk", "using multi"},
{"DELETE FROM t WHERE a = 1 RETURNING *", "returning star"},
{"DELETE FROM t WHERE a = 1 RETURNING a, b", "returning cols"},
{"DELETE FROM t USING t2 WHERE t.id = t2.fk RETURNING t.a", "using + returning"},
};
TEST(PgSQLDeleteBulk, AllCasesParseSuccessfully) {
Parser<Dialect::PostgreSQL> parser;
for (const auto& tc : pgsql_delete_bulk_cases) {
auto r = parser.parse(tc.sql, strlen(tc.sql));
EXPECT_EQ(r.status, ParseResult::OK)
<< "Failed: " << tc.description << "\n SQL: " << tc.sql;
EXPECT_EQ(r.stmt_type, StmtType::DELETE_STMT)
<< "Failed: " << tc.description;
EXPECT_NE(r.ast, nullptr)
<< "Failed: " << tc.description << "\n SQL: " << tc.sql;
}
}
// ========== Round-trip tests ==========
static const DeleteTestCase mysql_delete_roundtrip_cases[] = {
{"DELETE FROM t WHERE a = 1", "simple"},
{"DELETE LOW_PRIORITY QUICK IGNORE FROM t WHERE a = 1", "all options"},
{"DELETE FROM t WHERE a = 1 ORDER BY b LIMIT 10", "order by limit"},
};
TEST(MySQLDeleteRoundTrip, AllCasesRoundTrip) {
Parser<Dialect::MySQL> parser;
for (const auto& tc : mysql_delete_roundtrip_cases) {
auto r = parser.parse(tc.sql, strlen(tc.sql));
ASSERT_NE(r.ast, nullptr)
<< "Parse failed: " << tc.description << "\n SQL: " << tc.sql;
Emitter<Dialect::MySQL> emitter(parser.arena());
emitter.emit(r.ast);
StringRef result = emitter.result();
std::string out(result.ptr, result.len);
EXPECT_EQ(out, std::string(tc.sql))
<< "Round-trip mismatch: " << tc.description;
}
}
static const DeleteTestCase pgsql_delete_roundtrip_cases[] = {
{"DELETE FROM t WHERE a = 1", "simple"},
{"DELETE FROM t USING t2 WHERE t.id = t2.fk", "using"},
{"DELETE FROM t WHERE a = 1 RETURNING *", "returning"},
};
TEST(PgSQLDeleteRoundTrip, AllCasesRoundTrip) {
Parser<Dialect::PostgreSQL> parser;
for (const auto& tc : pgsql_delete_roundtrip_cases) {
auto r = parser.parse(tc.sql, strlen(tc.sql));
ASSERT_NE(r.ast, nullptr)
<< "Parse failed: " << tc.description << "\n SQL: " << tc.sql;
Emitter<Dialect::PostgreSQL> emitter(parser.arena());
emitter.emit(r.ast);
StringRef result = emitter.result();
std::string out(result.ptr, result.len);
EXPECT_EQ(out, std::string(tc.sql))
<< "Round-trip mismatch: " << tc.description;
}
}
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