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Add Binary Double datatype tests #112

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358 changes: 358 additions & 0 deletions tests/binary_double_test.go
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/*
** Copyright (c) 2025 Oracle and/or its affiliates.
**
** The Universal Permissive License (UPL), Version 1.0
**
** Subject to the condition set forth below, permission is hereby granted to any
** person obtaining a copy of this software, associated documentation and/or data
** (collectively the "Software"), free of charge and under any and all copyright
** rights in the Software, and any and all patent rights owned or freely
** licensable by each licensor hereunder covering either (i) the unmodified
** Software as contributed to or provided by such licensor, or (ii) the Larger
** Works (as defined below), to deal in both
**
** (a) the Software, and
** (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
** one is included with the Software (each a "Larger Work" to which the Software
** is contributed by such licensors),
**
** without restriction, including without limitation the rights to copy, create
** derivative works of, display, perform, and distribute the Software and make,
** use, sell, offer for sale, import, export, have made, and have sold the
** Software and the Larger Work(s), and to sublicense the foregoing rights on
** either these or other terms.
**
** This license is subject to the following condition:
** The above copyright notice and either this complete permission notice or at
** a minimum a reference to the UPL must be included in all copies or
** substantial portions of the Software.
**
** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
** SOFTWARE.
*/

package tests

import (
"database/sql"
"math"
"testing"
)

type BinaryDoubleTest struct {
ID uint `gorm:"column:ID;primaryKey"`
DoubleValue float64 `gorm:"column:DOUBLE_VALUE;type:BINARY_DOUBLE"`
NullableDouble *float64 `gorm:"column:NULLABLE_DOUBLE;type:BINARY_DOUBLE"`
SQLNullFloat sql.NullFloat64 `gorm:"column:SQL_NULL_FLOAT;type:BINARY_DOUBLE"`
}

func (BinaryDoubleTest) TableName() string {
return "BINARY_DOUBLE_TESTS"
}

func TestBinaryDoubleBasicCRUD(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
if err := DB.AutoMigrate(&BinaryDoubleTest{}); err != nil {
t.Fatalf("failed to migrate: %v", err)
}

// CREATE - Insert basic double value
testValue := 3.141592653589793
bd1 := BinaryDoubleTest{DoubleValue: testValue}
if err := DB.Create(&bd1).Error; err != nil {
t.Fatalf("insert failed: %v", err)
}

// READ - Fetch and verify
var got BinaryDoubleTest
if err := DB.First(&got, bd1.ID).Error; err != nil {
t.Fatalf("fetch failed: %v", err)
}

if math.Abs(got.DoubleValue - testValue) > 1e-15 {
t.Errorf("expected %v, got %v", testValue, got.DoubleValue)
}

// UPDATE - Modify the value
newValue := 2.718281828459045
if err := DB.Model(&got).Update("DoubleValue", newValue).Error; err != nil {
t.Fatalf("update failed: %v", err)
}

// Verify update
var updated BinaryDoubleTest
if err := DB.First(&updated, bd1.ID).Error; err != nil {
t.Fatalf("fetch after update failed: %v", err)
}
if math.Abs(updated.DoubleValue - newValue) > 1e-15 {
t.Errorf("expected %v after update, got %v", newValue, updated.DoubleValue)
}

// DELETE
if err := DB.Delete(&updated).Error; err != nil {
t.Fatalf("delete failed: %v", err)
}

// Verify deletion
var deleted BinaryDoubleTest
err := DB.First(&deleted, bd1.ID).Error
if err == nil {
t.Error("expected record to be deleted")
}
}

func TestBinaryDoubleSpecialValues(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
DB.AutoMigrate(&BinaryDoubleTest{})

testCases := []struct {
name string
value float64
}{
{"Positive Infinity", math.Inf(1)},
{"Negative Infinity", math.Inf(-1)},
{"NaN", math.NaN()},
{"Max Float64", math.MaxFloat64},
{"Min Float64", -math.MaxFloat64},
{"Smallest Positive", math.SmallestNonzeroFloat64},
{"Zero", 0.0},
{"Negative Zero", -0.0},
}

for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
bd := BinaryDoubleTest{DoubleValue: tc.value}
if err := DB.Create(&bd).Error; err != nil {
t.Fatalf("failed to insert %s: %v", tc.name, err)
}

var got BinaryDoubleTest
if err := DB.First(&got, bd.ID).Error; err != nil {
t.Fatalf("failed to fetch %s: %v", tc.name, err)
}

if math.IsNaN(tc.value) {
if !math.IsNaN(got.DoubleValue) {
t.Errorf("expected NaN, got %v", got.DoubleValue)
}
} else if math.IsInf(tc.value, 1) {
if !math.IsInf(got.DoubleValue, 1) {
t.Errorf("expected +Inf, got %v", got.DoubleValue)
}
} else if math.IsInf(tc.value, -1) {
if !math.IsInf(got.DoubleValue, -1) {
t.Errorf("expected -Inf, got %v", got.DoubleValue)
}
} else if tc.value == 0.0 || tc.value == -0.0 {
if got.DoubleValue != 0.0 {
t.Errorf("expected 0, got %v", got.DoubleValue)
}
} else {
if math.Abs(got.DoubleValue - tc.value) > 1e-15 {
t.Errorf("expected %v, got %v", tc.value, got.DoubleValue)
}
}
})
}
}

func TestBinaryDoubleNullableColumn(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
DB.AutoMigrate(&BinaryDoubleTest{})

// Test NULL value
bd1 := BinaryDoubleTest{
DoubleValue: 1.23,
NullableDouble: nil,
}
if err := DB.Create(&bd1).Error; err != nil {
t.Fatalf("failed to insert with NULL: %v", err)
}

var got1 BinaryDoubleTest
if err := DB.First(&got1, bd1.ID).Error; err != nil {
t.Fatal(err)
}
if got1.NullableDouble != nil {
t.Errorf("expected NULL, got %v", *got1.NullableDouble)
}

// Test with non-NULL value
val := 456.789
bd2 := BinaryDoubleTest{
DoubleValue: 2.34,
NullableDouble: &val,
}
if err := DB.Create(&bd2).Error; err != nil {
t.Fatalf("failed to insert with value: %v", err)
}

var got2 BinaryDoubleTest
if err := DB.First(&got2, bd2.ID).Error; err != nil {
t.Fatal(err)
}
if got2.NullableDouble == nil {
t.Error("expected non-NULL value")
} else if math.Abs(*got2.NullableDouble - val) > 1e-15 {
t.Errorf("expected %v, got %v", val, *got2.NullableDouble)
}

// Update to NULL
if err := DB.Model(&got2).Update("NullableDouble", nil).Error; err != nil {
t.Fatalf("failed to update to NULL: %v", err)
}

var got3 BinaryDoubleTest
if err := DB.First(&got3, bd2.ID).Error; err != nil {
t.Fatal(err)
}
if got3.NullableDouble != nil {
t.Errorf("expected NULL after update, got %v", *got3.NullableDouble)
}
}

func TestBinaryDoubleSQLNullFloat(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
DB.AutoMigrate(&BinaryDoubleTest{})

// Test with valid value
bd1 := BinaryDoubleTest{
DoubleValue: 1.0,
SQLNullFloat: sql.NullFloat64{Float64: 123.456, Valid: true},
}
if err := DB.Create(&bd1).Error; err != nil {
t.Fatalf("failed to create with sql.NullFloat64: %v", err)
}

var got1 BinaryDoubleTest
if err := DB.First(&got1, bd1.ID).Error; err != nil {
t.Fatal(err)
}
if !got1.SQLNullFloat.Valid {
t.Error("expected Valid to be true")
}
if math.Abs(got1.SQLNullFloat.Float64 - 123.456) > 1e-15 {
t.Errorf("expected 123.456, got %v", got1.SQLNullFloat.Float64)
}

// Test with invalid (NULL) value
bd2 := BinaryDoubleTest{
DoubleValue: 2.0,
SQLNullFloat: sql.NullFloat64{Valid: false},
}
if err := DB.Create(&bd2).Error; err != nil {
t.Fatalf("failed to create with NULL sql.NullFloat64: %v", err)
}

var got2 BinaryDoubleTest
if err := DB.First(&got2, bd2.ID).Error; err != nil {
t.Fatal(err)
}
if got2.SQLNullFloat.Valid {
t.Error("expected Valid to be false for NULL")
}
}

func TestBinaryDoubleArithmeticOperations(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
DB.AutoMigrate(&BinaryDoubleTest{})

// Insert test data
values := []float64{10.5, 20.3, 30.7, 40.1, 50.9}
for _, v := range values {
bd := BinaryDoubleTest{DoubleValue: v}
if err := DB.Create(&bd).Error; err != nil {
t.Fatalf("failed to insert %v: %v", v, err)
}
}

// Test SUM
var sum float64
if err := DB.Model(&BinaryDoubleTest{}).Select("SUM(DOUBLE_VALUE)").Scan(&sum).Error; err != nil {
t.Fatalf("failed to calculate SUM: %v", err)
}
expectedSum := 10.5 + 20.3 + 30.7 + 40.1 + 50.9
if math.Abs(sum - expectedSum) > 1e-10 {
t.Errorf("expected sum %v, got %v", expectedSum, sum)
}

// Test AVG
var avg float64
if err := DB.Model(&BinaryDoubleTest{}).Select("AVG(DOUBLE_VALUE)").Scan(&avg).Error; err != nil {
t.Fatalf("failed to calculate AVG: %v", err)
}
expectedAvg := expectedSum / 5
if math.Abs(avg - expectedAvg) > 1e-10 {
t.Errorf("expected avg %v, got %v", expectedAvg, avg)
}

// Test MIN/MAX
var min, max float64
if err := DB.Model(&BinaryDoubleTest{}).Select("MIN(DOUBLE_VALUE)").Scan(&min).Error; err != nil {
t.Fatalf("failed to calculate MIN: %v", err)
}
if err := DB.Model(&BinaryDoubleTest{}).Select("MAX(DOUBLE_VALUE)").Scan(&max).Error; err != nil {
t.Fatalf("failed to calculate MAX: %v", err)
}
if math.Abs(min - 10.5) > 1e-10 {
t.Errorf("expected min 10.5, got %v", min)
}
if math.Abs(max - 50.9) > 1e-10 {
t.Errorf("expected max 50.9, got %v", max)
}
}

func TestBinaryDoubleRangeQueries(t *testing.T) {
DB.Migrator().DropTable(&BinaryDoubleTest{})
DB.AutoMigrate(&BinaryDoubleTest{})

// Insert test data with various ranges
testData := []float64{-100.5, -50.0, 0.0, 25.5, 50.0, 75.75, 100.0, 150.25}
for _, v := range testData {
bd := BinaryDoubleTest{DoubleValue: v}
if err := DB.Create(&bd).Error; err != nil {
t.Fatalf("failed to insert %v: %v", v, err)
}
}

// Test BETWEEN query
var results []BinaryDoubleTest
if err := DB.Where("DOUBLE_VALUE BETWEEN ? AND ?", 0.0, 100.0).Find(&results).Error; err != nil {
t.Fatalf("BETWEEN query failed: %v", err)
}
if len(results) != 5 {
t.Errorf("expected 5 results, got %d", len(results))
}

// Test greater than query
var gtResults []BinaryDoubleTest
if err := DB.Where("DOUBLE_VALUE > ?", 50.0).Find(&gtResults).Error; err != nil {
t.Fatalf("> query failed: %v", err)
}
if len(gtResults) != 3 {
t.Errorf("expected 3 results for > 50.0, got %d", len(gtResults))
}

// Test less than or equal query
var lteResults []BinaryDoubleTest
if err := DB.Where("DOUBLE_VALUE <= ?", 0.0).Find(&lteResults).Error; err != nil {
t.Fatalf("<= query failed: %v", err)
}
if len(lteResults) != 3 {
t.Errorf("expected 3 results for <= 0.0, got %d", len(lteResults))
}

// Test equality with floating point
var eqResults []BinaryDoubleTest
if err := DB.Where("DOUBLE_VALUE = ?", 25.5).Find(&eqResults).Error; err != nil {
t.Fatalf("= query failed: %v", err)
}
if len(eqResults) != 1 {
t.Errorf("expected 1 result for = 25.5, got %d", len(eqResults))
}
}
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