// ingestion/internal/pipeline/chunk_test.go
package pipeline

import (
	"strings"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestChunk_NoChunkingWhenZero(t *testing.T) {
	content := strings.Repeat("word ", 1000)
	chunks := Chunk(content, 0)
	assert.Len(t, chunks, 1)
}

func TestChunk_SplitsAtParagraph(t *testing.T) {
	content := "First paragraph here.\n\nSecond paragraph here."
	chunks := Chunk(content, 40)
	assert.Len(t, chunks, 2)
	assert.Equal(t, "First paragraph here.", chunks[0])
	assert.Equal(t, "Second paragraph here.", chunks[1])
}

func TestChunk_SingleLargeParagraph(t *testing.T) {
	content := strings.Repeat("x", 100)
	chunks := Chunk(content, 50)
	assert.Len(t, chunks, 1)
}

func TestChunk_NoChunkingWhenContentFits(t *testing.T) {
	content := "Short content."
	chunks := Chunk(content, 1000)
	assert.Len(t, chunks, 1)
	assert.Equal(t, "Short content.", chunks[0])
}