goext/dataext/merge_test.go

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package dataext
import (
"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"gogs.mikescher.com/BlackForestBytes/goext/tst"
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"testing"
)
func TestObjectMerge(t *testing.T) {
type A struct {
Field1 *int
Field2 *string
Field3 *float64
Field4 *bool
OnlyA int64
DiffType int
}
type B struct {
Field1 *int
Field2 *string
Field3 *float64
Field4 *bool
OnlyB int64
DiffType string
}
valueA := A{
Field1: nil,
Field2: langext.Ptr("99"),
Field3: langext.Ptr(12.2),
Field4: nil,
OnlyA: 1,
DiffType: 2,
}
valueB := B{
Field1: langext.Ptr(12),
Field2: nil,
Field3: langext.Ptr(13.2),
Field4: nil,
OnlyB: 1,
DiffType: "X",
}
valueMerge := ObjectMerge(valueA, valueB)
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tst.AssertIdentPtrEqual(t, "Field1", valueMerge.Field1, valueB.Field1)
tst.AssertIdentPtrEqual(t, "Field2", valueMerge.Field2, valueA.Field2)
tst.AssertIdentPtrEqual(t, "Field3", valueMerge.Field3, valueB.Field3)
tst.AssertIdentPtrEqual(t, "Field4", valueMerge.Field4, nil)
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}
func assertPtrEqual[T1 comparable](t *testing.T, ident string, actual *T1, expected *T1) {
if actual == nil && expected == nil {
return
}
if actual != nil && expected != nil {
if *actual != *expected {
t.Errorf("[%s] values differ: Actual: '%v', Expected: '%v'", ident, *actual, *expected)
} else {
return
}
}
if actual == nil && expected != nil {
t.Errorf("[%s] values differ: Actual: nil, Expected: not-nil", ident)
}
if actual != nil && expected == nil {
t.Errorf("[%s] values differ: Actual: not-nil, Expected: nil", ident)
}
}