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|
package engine
import (
"context"
"strings"
"testing"
)
// TestComprehensiveSQLSuite tests all kinds of SQL patterns to ensure robustness
func TestComprehensiveSQLSuite(t *testing.T) {
engine := NewTestSQLEngine()
testCases := []struct {
name string
sql string
shouldPanic bool
shouldError bool
desc string
}{
// =========== BASIC QUERIES ===========
{
name: "Basic_Select_All",
sql: "SELECT * FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Basic select all columns",
},
{
name: "Basic_Select_Column",
sql: "SELECT id FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Basic select single column",
},
{
name: "Basic_Select_Multiple_Columns",
sql: "SELECT id, status FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Basic select multiple columns",
},
// =========== ARITHMETIC EXPRESSIONS (FIXED) ===========
{
name: "Arithmetic_Multiply_FIXED",
sql: "SELECT id*2 FROM user_events",
shouldPanic: false, // Fixed: no longer panics
shouldError: false,
desc: "FIXED: Arithmetic multiplication works",
},
{
name: "Arithmetic_Add",
sql: "SELECT id+10 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Arithmetic addition works",
},
{
name: "Arithmetic_Subtract",
sql: "SELECT id-5 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Arithmetic subtraction works",
},
{
name: "Arithmetic_Divide",
sql: "SELECT id/3 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Arithmetic division works",
},
{
name: "Arithmetic_Complex",
sql: "SELECT id*2+10 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Complex arithmetic expression works",
},
// =========== STRING OPERATIONS ===========
{
name: "String_Concatenation",
sql: "SELECT 'hello' || 'world' FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "String concatenation",
},
{
name: "String_Column_Concat",
sql: "SELECT status || '_suffix' FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Column string concatenation",
},
// =========== FUNCTIONS ===========
{
name: "Function_LENGTH",
sql: "SELECT LENGTH('hello') FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "LENGTH function with literal",
},
{
name: "Function_LENGTH_Column",
sql: "SELECT LENGTH(status) FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "LENGTH function with column",
},
{
name: "Function_UPPER",
sql: "SELECT UPPER('hello') FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "UPPER function",
},
{
name: "Function_Nested",
sql: "SELECT LENGTH(UPPER('hello')) FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Nested functions",
},
// =========== FUNCTIONS WITH ARITHMETIC ===========
{
name: "Function_Arithmetic",
sql: "SELECT LENGTH('hello') + 10 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Function with arithmetic",
},
{
name: "Function_Arithmetic_Complex",
sql: "SELECT LENGTH(status) * 2 + 5 FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Function with complex arithmetic",
},
// =========== TABLE REFERENCES ===========
{
name: "Table_Simple",
sql: "SELECT * FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Simple table reference",
},
{
name: "Table_With_Database",
sql: "SELECT * FROM ecommerce.user_events",
shouldPanic: false,
shouldError: false,
desc: "Table with database qualifier",
},
{
name: "Table_Quoted",
sql: `SELECT * FROM "user_events"`,
shouldPanic: false,
shouldError: false,
desc: "Quoted table name",
},
// =========== WHERE CLAUSES ===========
{
name: "Where_Simple",
sql: "SELECT * FROM user_events WHERE id = 1",
shouldPanic: false,
shouldError: false,
desc: "Simple WHERE clause",
},
{
name: "Where_String",
sql: "SELECT * FROM user_events WHERE status = 'active'",
shouldPanic: false,
shouldError: false,
desc: "WHERE clause with string",
},
// =========== LIMIT/OFFSET ===========
{
name: "Limit_Only",
sql: "SELECT * FROM user_events LIMIT 10",
shouldPanic: false,
shouldError: false,
desc: "LIMIT clause only",
},
{
name: "Limit_Offset",
sql: "SELECT * FROM user_events LIMIT 10 OFFSET 5",
shouldPanic: false,
shouldError: false,
desc: "LIMIT with OFFSET",
},
// =========== DATETIME FUNCTIONS ===========
{
name: "DateTime_CURRENT_DATE",
sql: "SELECT CURRENT_DATE FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "CURRENT_DATE function",
},
{
name: "DateTime_NOW",
sql: "SELECT NOW() FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "NOW() function",
},
{
name: "DateTime_EXTRACT",
sql: "SELECT EXTRACT(YEAR FROM CURRENT_DATE) FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "EXTRACT function",
},
// =========== EDGE CASES ===========
{
name: "Empty_String",
sql: "SELECT '' FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Empty string literal",
},
{
name: "Multiple_Spaces",
sql: "SELECT id FROM user_events",
shouldPanic: false,
shouldError: false,
desc: "Query with multiple spaces",
},
{
name: "Mixed_Case",
sql: "Select ID from User_Events",
shouldPanic: false,
shouldError: false,
desc: "Mixed case SQL",
},
// =========== SHOW STATEMENTS ===========
{
name: "Show_Databases",
sql: "SHOW DATABASES",
shouldPanic: false,
shouldError: false,
desc: "SHOW DATABASES statement",
},
{
name: "Show_Tables",
sql: "SHOW TABLES",
shouldPanic: false,
shouldError: false,
desc: "SHOW TABLES statement",
},
}
var panicTests []string
var errorTests []string
var successTests []string
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
// Capture panics
var panicValue interface{}
func() {
defer func() {
if r := recover(); r != nil {
panicValue = r
}
}()
result, err := engine.ExecuteSQL(context.Background(), tc.sql)
if tc.shouldPanic {
if panicValue == nil {
t.Errorf("FAIL: Expected panic for %s, but query completed normally", tc.desc)
panicTests = append(panicTests, "FAIL: "+tc.desc)
return
} else {
t.Logf("PASS: EXPECTED PANIC: %s - %v", tc.desc, panicValue)
panicTests = append(panicTests, "PASS: "+tc.desc+" (reproduced)")
return
}
}
if panicValue != nil {
t.Errorf("FAIL: Unexpected panic for %s: %v", tc.desc, panicValue)
panicTests = append(panicTests, "FAIL: "+tc.desc+" (unexpected panic)")
return
}
if tc.shouldError {
if err == nil && (result == nil || result.Error == nil) {
t.Errorf("FAIL: Expected error for %s, but query succeeded", tc.desc)
errorTests = append(errorTests, "FAIL: "+tc.desc)
return
} else {
t.Logf("PASS: Expected error: %s", tc.desc)
errorTests = append(errorTests, "PASS: "+tc.desc)
return
}
}
if err != nil {
t.Errorf("FAIL: Unexpected error for %s: %v", tc.desc, err)
errorTests = append(errorTests, "FAIL: "+tc.desc+" (unexpected error)")
return
}
if result != nil && result.Error != nil {
t.Errorf("FAIL: Unexpected result error for %s: %v", tc.desc, result.Error)
errorTests = append(errorTests, "FAIL: "+tc.desc+" (unexpected result error)")
return
}
t.Logf("PASS: Success: %s", tc.desc)
successTests = append(successTests, "PASS: "+tc.desc)
}()
})
}
// Summary report
separator := strings.Repeat("=", 80)
t.Log("\n" + separator)
t.Log("COMPREHENSIVE SQL TEST SUITE SUMMARY")
t.Log(separator)
t.Logf("Total Tests: %d", len(testCases))
t.Logf("Successful: %d", len(successTests))
t.Logf("Panics: %d", len(panicTests))
t.Logf("Errors: %d", len(errorTests))
t.Log(separator)
if len(panicTests) > 0 {
t.Log("\nPANICS TO FIX:")
for _, test := range panicTests {
t.Log(" " + test)
}
}
if len(errorTests) > 0 {
t.Log("\nERRORS TO INVESTIGATE:")
for _, test := range errorTests {
t.Log(" " + test)
}
}
}
|
