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package fzf
import (
"fmt"
"testing"
"github.com/junegunn/fzf/src/util"
)
func TestChunkList(t *testing.T) {
// FIXME global
sortCriteria = []criterion{byScore, byLength}
cl := NewChunkList(func(item *Item, s []byte) bool {
item.text = util.ToChars(s)
return true
})
// Snapshot
snapshot, count := cl.Snapshot()
if len(snapshot) > 0 || count > 0 {
t.Error("Snapshot should be empty now")
}
// Add some data
cl.Push([]byte("hello"))
cl.Push([]byte("world"))
// Previously created snapshot should remain the same
if len(snapshot) > 0 {
t.Error("Snapshot should not have changed")
}
// But the new snapshot should contain the added items
snapshot, count = cl.Snapshot()
if len(snapshot) != 1 && count != 2 {
t.Error("Snapshot should not be empty now")
}
// Check the content of the ChunkList
chunk1 := snapshot[0]
if chunk1.count != 2 {
t.Error("Snapshot should contain only two items")
}
if chunk1.items[0].text.ToString() != "hello" ||
chunk1.items[1].text.ToString() != "world" {
t.Error("Invalid data")
}
if chunk1.IsFull() {
t.Error("Chunk should not have been marked full yet")
}
// Add more data
for i := 0; i < chunkSize*2; i++ {
cl.Push([]byte(fmt.Sprintf("item %d", i)))
}
// Previous snapshot should remain the same
if len(snapshot) != 1 {
t.Error("Snapshot should stay the same")
}
// New snapshot
snapshot, count = cl.Snapshot()
if len(snapshot) != 3 || !snapshot[0].IsFull() ||
!snapshot[1].IsFull() || snapshot[2].IsFull() || count != chunkSize*2+2 {
t.Error("Expected two full chunks and one more chunk")
}
if snapshot[2].count != 2 {
t.Error("Unexpected number of items")
}
cl.Push([]byte("hello"))
cl.Push([]byte("world"))
lastChunkCount := snapshot[len(snapshot)-1].count
if lastChunkCount != 2 {
t.Error("Unexpected number of items:", lastChunkCount)
}
}
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