1 files changed, 382 insertions, 0 deletions
diff --git a/integrationtests/integration_test.go b/integrationtests/integration_test.go
new file mode 100644
index 0000000..634971e
--- /dev/null
+++ b/integrationtests/integration_test.go
@@ -0,0 +1,382 @@
+// Package integrationtests runs end-to-end tests of the snonux generator pipeline.
+// Each test creates temporary input/output directories, places fixture files, runs
+// the full processor+generator pipeline, and asserts the expected outputs.
+package integrationtests
+
+import (
+	"encoding/xml"
+	"fmt"
+	"image"
+	"image/color"
+	"image/png"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"codeberg.org/snonux/snonux/internal/config"
+	"codeberg.org/snonux/snonux/internal/generator"
+	"codeberg.org/snonux/snonux/internal/processor"
+)
+
+// runPipeline executes both pipeline stages and returns the config used.
+func runPipeline(t *testing.T, inputDir, outputDir string) *config.Config {
+	t.Helper()
+
+	cfg := &config.Config{
+		InputDir:  inputDir,
+		OutputDir: outputDir,
+		BaseURL:   "https://snonux.foo",
+		Theme:     "neon",
+	}
+
+	_, err := processor.Run(cfg)
+	if err != nil {
+		t.Fatalf("processor.Run: %v", err)
+	}
+
+	if err := generator.Run(cfg); err != nil {
+		t.Fatalf("generator.Run: %v", err)
+	}
+
+	return cfg
+}
+
+// makeDirs creates temporary input and output directories for a test.
+func makeDirs(t *testing.T) (inputDir, outputDir string) {
+	t.Helper()
+
+	base := t.TempDir()
+	inputDir = filepath.Join(base, "inbox")
+	outputDir = filepath.Join(base, "outdir")
+
+	if err := os.MkdirAll(inputDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.MkdirAll(outputDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+
+	return inputDir, outputDir
+}
+
+// readFile is a helper that reads a file and fails the test on error.
+func readFile(t *testing.T, path string) string {
+	t.Helper()
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("read %s: %v", path, err)
+	}
+
+	return string(data)
+}
+
+// assertContains fails the test if content does not contain substr.
+func assertContains(t *testing.T, content, substr, label string) {
+	t.Helper()
+
+	if !strings.Contains(content, substr) {
+		t.Errorf("%s: expected to contain %q\ngot:\n%s", label, substr, content[:min(len(content), 500)])
+	}
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+// TestTxtInput verifies plain text files are converted to posts.
+func TestTxtInput(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	if err := os.WriteFile(filepath.Join(inputDir, "hello.txt"), []byte("Hello, Nexus!"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	// Source file should have been removed after processing.
+	if _, err := os.Stat(filepath.Join(inputDir, "hello.txt")); !os.IsNotExist(err) {
+		t.Error("source file should have been deleted from input dir")
+	}
+
+	// A post directory should exist under outdir/posts/.
+	entries, err := os.ReadDir(filepath.Join(outputDir, "posts"))
+	if err != nil {
+		t.Fatalf("read posts dir: %v", err)
+	}
+	if len(entries) != 1 {
+		t.Fatalf("expected 1 post dir, got %d", len(entries))
+	}
+
+	// index.html must contain the post text.
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	assertContains(t, index, "Hello, Nexus!", "index.html")
+}
+
+// TestMarkdownInput verifies Markdown files are converted to HTML.
+func TestMarkdownInput(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	md := "# Hello Nexus\n\nThis is **bold** text."
+	if err := os.WriteFile(filepath.Join(inputDir, "post.md"), []byte(md), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	assertContains(t, index, "<strong>bold</strong>", "index.html markdown bold")
+	assertContains(t, index, "<h1>", "index.html markdown h1")
+}
+
+// TestImageInput verifies image files are processed and embedded in pages.
+func TestImageInput(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	writeSamplePNG(t, filepath.Join(inputDir, "photo.png"))
+	runPipeline(t, inputDir, outputDir)
+
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	assertContains(t, index, `<img`, "index.html image tag")
+	assertContains(t, index, `image.jpg`, "index.html image filename")
+
+	// Converted JPEG should exist in the post asset dir.
+	postDirs, _ := os.ReadDir(filepath.Join(outputDir, "posts"))
+	if len(postDirs) != 1 {
+		t.Fatalf("expected 1 post, got %d", len(postDirs))
+	}
+	imgPath := filepath.Join(outputDir, "posts", postDirs[0].Name(), "image.jpg")
+	if _, err := os.Stat(imgPath); err != nil {
+		t.Errorf("expected image.jpg in post dir: %v", err)
+	}
+}
+
+// TestAudioInput verifies .mp3 files are copied and an audio element is generated.
+func TestAudioInput(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	// Write a minimal non-empty file as a stand-in for MP3 content.
+	if err := os.WriteFile(filepath.Join(inputDir, "track.mp3"), []byte("ID3fake"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	assertContains(t, index, `<audio`, "index.html audio tag")
+	assertContains(t, index, `track.mp3`, "index.html audio filename")
+}
+
+// TestMarkdownWithImage verifies that a Markdown post referencing a local image
+// copies the image into the post dir and updates the src path.
+func TestMarkdownWithImage(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	md := "Look at this:\n\n![cool pic](photo.png)\n"
+	if err := os.WriteFile(filepath.Join(inputDir, "post.md"), []byte(md), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	writeSamplePNG(t, filepath.Join(inputDir, "photo.png"))
+
+	runPipeline(t, inputDir, outputDir)
+
+	postDirs, _ := os.ReadDir(filepath.Join(outputDir, "posts"))
+	if len(postDirs) != 1 {
+		t.Fatalf("expected 1 post, got %d", len(postDirs))
+	}
+
+	// The referenced image should be copied into the post dir.
+	imgPath := filepath.Join(outputDir, "posts", postDirs[0].Name(), "photo.png")
+	if _, err := os.Stat(imgPath); err != nil {
+		t.Errorf("expected photo.png in post dir: %v", err)
+	}
+}
+
+// TestPagination verifies that 45 posts are split across two pages (42 + 3).
+func TestPagination(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	for i := 0; i < 45; i++ {
+		name := fmt.Sprintf("post%02d.txt", i)
+		content := fmt.Sprintf("Post number %d", i)
+		if err := os.WriteFile(filepath.Join(inputDir, name), []byte(content), 0o644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	// index.html should exist and contain 42 posts.
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	if count := strings.Count(index, `class="post"`); count != 42 {
+		t.Errorf("index.html: expected 42 posts, got %d", count)
+	}
+
+	// page2.html should exist and contain 3 posts.
+	page2 := readFile(t, filepath.Join(outputDir, "page2.html"))
+	if count := strings.Count(page2, `class="post"`); count != 3 {
+		t.Errorf("page2.html: expected 3 posts, got %d", count)
+	}
+}
+
+// TestPaginationNavLinks verifies prev/next navigation links are positioned correctly.
+func TestPaginationNavLinks(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	for i := 0; i < 45; i++ {
+		if err := os.WriteFile(filepath.Join(inputDir, fmt.Sprintf("p%02d.txt", i)), []byte("x"), 0o644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	// index.html (page 1) has no prev, should have next link (page2.html).
+	assertContains(t, index, "page2.html", "index.html next link")
+	if strings.Contains(index, "NEWER TRANSMISSIONS") {
+		t.Error("index.html should not have a prev-page link")
+	}
+
+	page2 := readFile(t, filepath.Join(outputDir, "page2.html"))
+	// page2.html should have a prev link (index.html) and no next.
+	assertContains(t, page2, "NEWER TRANSMISSIONS", "page2.html prev link")
+	if strings.Contains(page2, "OLDER TRANSMISSIONS") {
+		t.Error("page2.html should not have a next-page link")
+	}
+}
+
+// TestAtomFeed verifies that atom.xml is well-formed and contains ≤42 entries.
+func TestAtomFeed(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	for i := 0; i < 5; i++ {
+		if err := os.WriteFile(filepath.Join(inputDir, fmt.Sprintf("p%d.txt", i)), []byte("feed post"), 0o644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	atomPath := filepath.Join(outputDir, "atom.xml")
+	data, err := os.ReadFile(atomPath)
+	if err != nil {
+		t.Fatalf("read atom.xml: %v", err)
+	}
+
+	// Validate well-formed XML.
+	var feed struct {
+		XMLName xml.Name `xml:"feed"`
+		Entries []struct {
+			Title string `xml:"title"`
+		} `xml:"entry"`
+	}
+	if err := xml.Unmarshal(data, &feed); err != nil {
+		t.Fatalf("atom.xml not valid XML: %v", err)
+	}
+
+	if len(feed.Entries) != 5 {
+		t.Errorf("expected 5 entries in atom.xml, got %d", len(feed.Entries))
+	}
+}
+
+// TestInputCleanup verifies all source files are removed from the input dir.
+func TestInputCleanup(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	for _, name := range []string{"a.txt", "b.txt", "c.txt"} {
+		if err := os.WriteFile(filepath.Join(inputDir, name), []byte("x"), 0o644); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	entries, _ := os.ReadDir(inputDir)
+	if len(entries) != 0 {
+		t.Errorf("input dir should be empty after processing, got %d files", len(entries))
+	}
+}
+
+// TestKeyboardNavJS verifies that the generated HTML includes navigation attributes.
+func TestKeyboardNavJS(t *testing.T) {
+	inputDir, outputDir := makeDirs(t)
+
+	if err := os.WriteFile(filepath.Join(inputDir, "nav.txt"), []byte("nav test"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	runPipeline(t, inputDir, outputDir)
+
+	index := readFile(t, filepath.Join(outputDir, "index.html"))
+	assertContains(t, index, `data-index="0"`, "index.html data-index attribute")
+	assertContains(t, index, `.post-active`, "index.html .post-active CSS")
+	assertContains(t, index, `playNavSound`, "index.html playNavSound function")
+}
+
+// TestThemeSelection verifies that every registered theme renders a valid
+// index.html containing core structural elements (post text, nav script).
+func TestThemeSelection(t *testing.T) {
+	themes := []string{
+		"aurora", "brutalist", "glass", "matrix", "minimal",
+		"neon", "ocean", "paper", "retro", "synthwave", "terminal",
+	}
+
+	for _, theme := range themes {
+		theme := theme // capture for parallel sub-test
+
+		t.Run(theme, func(t *testing.T) {
+			inputDir, outputDir := makeDirs(t)
+
+			if err := os.WriteFile(filepath.Join(inputDir, "hello.txt"), []byte("theme test post"), 0o644); err != nil {
+				t.Fatal(err)
+			}
+
+			cfg := &config.Config{
+				InputDir:  inputDir,
+				OutputDir: outputDir,
+				BaseURL:   "https://snonux.foo",
+				Theme:     theme,
+			}
+
+			if _, err := processor.Run(cfg); err != nil {
+				t.Fatalf("processor.Run: %v", err)
+			}
+			if err := generator.Run(cfg); err != nil {
+				t.Fatalf("generator.Run for theme %q: %v", theme, err)
+			}
+
+			index := readFile(t, filepath.Join(outputDir, "index.html"))
+			assertContains(t, index, "theme test post", "post text")
+			assertContains(t, index, "playNavSound", "nav JS")
+			assertContains(t, index, `data-index="0"`, "data-index attribute")
+		})
+	}
+}
+
+// writeSamplePNG writes a small 10×10 solid-colour PNG to path.
+func writeSamplePNG(t *testing.T, path string) {
+	t.Helper()
+
+	img := image.NewRGBA(image.Rect(0, 0, 10, 10))
+	for y := 0; y < 10; y++ {
+		for x := 0; x < 10; x++ {
+			img.Set(x, y, color.RGBA{R: 0, G: 245, B: 255, A: 255})
+		}
+	}
+
+	f, err := os.Create(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer f.Close()
+
+	if err := png.Encode(f, img); err != nil {
+		t.Fatal(err)
+	}
+}