ml
117 lines
3.6 KiB
Go
117 lines
3.6 KiB
Go
package level_test
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import (
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"bytes"
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"encoding/binary"
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"testing"
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"github.com/inkyblackness/hacked/ss1/content/archive/level"
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"github.com/inkyblackness/hacked/ss1/serial"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestObjectMainEntrySerializedSize(t *testing.T) {
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var entry level.ObjectMainEntry
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size := binary.Size(&entry)
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assert.Equal(t, level.ObjectMainEntrySize, size)
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}
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func TestObjectMainTableCanBeSerializedWithCoder(t *testing.T) {
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table := level.ObjectMainTable([]level.ObjectMainEntry{{}, {}})
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buf := bytes.NewBuffer(nil)
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encoder := serial.NewEncoder(buf)
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encoder.Code(table)
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data := buf.Bytes()
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assert.Equal(t, level.ObjectMainEntrySize*2, len(data))
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}
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func TestObjectMainTableResetClearsInUseFlags(t *testing.T) {
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table := level.ObjectMainTable([]level.ObjectMainEntry{{InUse: 1}, {InUse: 1}})
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table.Reset()
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assert.Equal(t, byte(0), table[0].InUse, "table[0].InUse should be zero.")
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assert.Equal(t, byte(0), table[1].InUse, "table[1].InUse should be zero.")
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}
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func TestObjectMainTableInitializesLists(t *testing.T) {
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table := level.ObjectMainTable([]level.ObjectMainEntry{{Next: 20, CrossReferenceTableIndex: 10}, {Next: 30}, {Next: 40}})
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table.Reset()
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assert.Equal(t, level.ObjectID(1), table[0].Next, "table[0].Next should be 1, the first free entry.")
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assert.Equal(t, int16(0), table[0].CrossReferenceTableIndex, "table[0].CrossReferenceTableIndex should be 0, the used list is empty.")
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assert.Equal(t, level.ObjectID(2), table[1].Next, "table[1].Next should be 2, the second free entry.")
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assert.Equal(t, level.ObjectID(0), table[2].Next, "table[2].Next should be 0, the start entry.")
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}
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func TestDefaultObjectMainTable(t *testing.T) {
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table := level.DefaultObjectMainTable()
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assert.Equal(t, 872, len(table), "Table length mismatch")
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assert.Equal(t, level.ObjectID(1), table[0].Next, "table[0].Next should be 1, the first free entry.")
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}
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func TestObjectMainTableAllocate(t *testing.T) {
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tt := []int{0, 1, 2, 3, 100}
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for _, tc := range tt {
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table := make(level.ObjectMainTable, tc)
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table.Reset()
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possible := tc - 1
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if possible < 0 {
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possible = 0
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}
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assert.Equal(t, possible, table.Capacity(), "table should have proper capacity")
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for attempt := 0; attempt < possible; attempt++ {
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assert.Equal(t, attempt, table.AllocatedCount(), "table should have expected allocation count")
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id := table.Allocate()
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assert.NotEqual(t, level.ObjectID(0), id, "could not allocate at attempt %d for size %d", attempt, tc)
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}
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assert.Equal(t, possible, table.AllocatedCount(), "table should be full")
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last := table.Allocate()
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assert.Equal(t, level.ObjectID(0), last, "table was not exhausted although it should be")
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}
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}
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func TestObjectMainTableRelease(t *testing.T) {
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stats := func(table level.ObjectMainTable) (used, free int) {
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for i := 1; i < len(table); i++ {
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entry := &table[i]
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if entry.InUse != 0 {
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used++
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} else {
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free++
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}
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}
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return
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}
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table := make(level.ObjectMainTable, 10)
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table.Reset()
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var allocated []level.ObjectID
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for i := 0; i < 4; i++ {
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id := table.Allocate()
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allocated = append(allocated, id)
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}
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used, free := stats(table)
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require.Equal(t, 4, used, "invalid amount of used entries")
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require.Equal(t, 5, free, "invalid amount of free entries")
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for _, id := range allocated {
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table.Release(id)
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}
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used, free = stats(table)
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assert.Equal(t, 0, used, "invalid amount of used entries after release")
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assert.Equal(t, 9, free, "invalid amount of free entries after release")
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table.Release(0)
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table.Release(20)
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for i := 0; i < len(table)-1; i++ {
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id := table.Allocate()
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assert.NotEqual(t, level.ObjectID(0), id, "should have been able to re-allocate")
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}
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}
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