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package config
import (
"errors"
"os"
"path/filepath"
"strings"
"testing"
"codeberg.org/snonux/comicforge/internal/provider"
)
func TestLoadReturnsDefaultsWhenConfigMissing(t *testing.T) {
cfg, err := Load("")
if err != nil {
t.Fatalf("Load() error = %v", err)
}
if got, want := cfg.Provider.Text, provider.Gemini; got != want {
t.Fatalf("Provider.Text = %q, want %q", got, want)
}
if got, want := cfg.PromptsDir, DefaultPromptsDir; got != want {
t.Fatalf("PromptsDir = %q, want %q", got, want)
}
}
func TestLoadReadsFileAndEnvOverrides(t *testing.T) {
tmpDir := t.TempDir()
configPath := filepath.Join(tmpDir, "config.yaml")
if err := os.WriteFile(configPath, []byte(strings.TrimSpace(`
provider:
text: openai
image: openai
tts: openai
prompts_dir: ./custom-prompts
comic:
story_pages: 7
`)), 0o644); err != nil {
t.Fatalf("write config: %v", err)
}
t.Setenv("COMICFORGE_PROVIDER_TEXT", "gemini")
cfg, err := Load(configPath)
if err != nil {
t.Fatalf("Load() error = %v", err)
}
if got, want := cfg.Provider.Text, provider.Gemini; got != want {
t.Fatalf("Provider.Text = %q, want %q", got, want)
}
if got, want := cfg.Provider.Image, provider.OpenAI; got != want {
t.Fatalf("Provider.Image = %q, want %q", got, want)
}
if got, want := cfg.Comic.StoryPages, 7; got != want {
t.Fatalf("Comic.StoryPages = %d, want %d", got, want)
}
if got, want := cfg.PromptsDir, "./custom-prompts"; got != want {
t.Fatalf("PromptsDir = %q, want %q", got, want)
}
}
func TestRenderPrompt(t *testing.T) {
tmpDir := t.TempDir()
cfg := DefaultConfig()
cfg.PromptsDir = tmpDir
if err := os.WriteFile(filepath.Join(tmpDir, "story.md"), []byte("{{.Word}} -> {{.Translation}}"), 0o644); err != nil {
t.Fatalf("write prompt: %v", err)
}
got, err := cfg.RenderPrompt("story.md", map[string]string{
"Word": "ябълка",
"Translation": "apple",
})
if err != nil {
t.Fatalf("RenderPrompt() error = %v", err)
}
if got != "ябълка -> apple" {
t.Fatalf("RenderPrompt() = %q, want %q", got, "ябълка -> apple")
}
}
func TestRenderPromptFallsBackToEmbeddedTemplate(t *testing.T) {
cfg := DefaultConfig()
cfg.PromptsDir = t.TempDir()
got, err := cfg.RenderPrompt("story_prompt.md", map[string]any{
"Language": "Bulgarian",
"Genre": "a mystery with a surprising twist",
"Words": "1. ябълка (apple)\n2. книга (book)\n",
})
if err != nil {
t.Fatalf("RenderPrompt() error = %v", err)
}
if !strings.Contains(got, "Write a ~250-word story in Bulgarian") {
t.Fatalf("RenderPrompt() = %q, want embedded story prompt", got)
}
}
func TestRenderPromptPrefersExternalTemplate(t *testing.T) {
tmpDir := t.TempDir()
cfg := DefaultConfig()
cfg.PromptsDir = tmpDir
if err := os.WriteFile(filepath.Join(tmpDir, "story_prompt.md"), []byte("external {{.Word}}"), 0o644); err != nil {
t.Fatalf("write prompt: %v", err)
}
got, err := cfg.RenderPrompt("story_prompt.md", map[string]any{
"Word": "override",
})
if err != nil {
t.Fatalf("RenderPrompt() error = %v", err)
}
if got != "external override" {
t.Fatalf("RenderPrompt() = %q, want %q", got, "external override")
}
}
func TestRenderPromptMissingKeyReturnsError(t *testing.T) {
tmpDir := t.TempDir()
cfg := DefaultConfig()
cfg.PromptsDir = tmpDir
if err := os.WriteFile(filepath.Join(tmpDir, "story.md"), []byte("{{.Word}} -> {{.Translation}}"), 0o644); err != nil {
t.Fatalf("write prompt: %v", err)
}
_, err := cfg.RenderPrompt("story.md", map[string]string{"Word": "ябълка"})
if err == nil {
t.Fatal("RenderPrompt() error = nil, want error")
}
if !strings.Contains(err.Error(), "render prompt") {
t.Fatalf("RenderPrompt() error = %v, want wrapped render error", err)
}
}
func TestEmbeddedPromptTemplatesRender(t *testing.T) {
cfg := DefaultConfig()
cfg.PromptsDir = t.TempDir()
data := map[string]any{
"Language": "Bulgarian",
"Script": "Cyrillic",
"Genre": "a mystery with a surprising twist",
"Style": "cinematic realism",
"Words": "1. ябълка (apple)\n2. книга (book)\n",
"Bible": "Mira: young adult, brown hair, blue eyes, red coat.\n",
"Subtitle": "Sample Subtitle",
"StoryText": "A short story teaser.",
"RenderingRequirement": "ULTRA-REALISTIC RENDERING",
"RenderingRequirementEnd": "FINAL LOCK — PHOTOREALISM",
"StoryBibleSeparator": "---CHARACTER GUIDE---",
"StoryTitleSeparator": "---COMIC TITLE---",
"StoryPanelSeparator": "---PANEL SCRIPT---",
"PageNum": 1,
"TotalPages": 5,
"PanelLayout": "MANDATORY PANEL LAYOUT — divide the image into exactly 4 panels in a 2×2 grid.\n",
"BlurbBox": "a rectangular text box with a short blurb",
"SeriesTitle": "ComicForge Adventures",
"Pose": "extreme close-up portrait",
}
for _, name := range []string{
"story_system.md",
"story_prompt.md",
"story_full_prompt.md",
"bible_system.md",
"blurb_system.md",
"cover_prompt.md",
"story_page_prompt.md",
"gallery_page_prompt.md",
"back_cover_prompt.md",
"panel_script_prompt.md",
"narrator_cinematic.md",
"narrator_intro_system.md",
"narrator_conclusion_system.md",
"rendering_requirement.md",
"rendering_requirement_end.md",
} {
t.Run(name, func(t *testing.T) {
got, err := cfg.RenderPrompt(name, data)
if err != nil {
t.Fatalf("RenderPrompt() error = %v", err)
}
if strings.TrimSpace(got) == "" {
t.Fatal("RenderPrompt() = empty string, want rendered prompt")
}
})
}
}
func TestRenderPromptMissingTemplateReturnsError(t *testing.T) {
cfg := DefaultConfig()
cfg.PromptsDir = t.TempDir()
_, err := cfg.RenderPrompt("missing_prompt.md", map[string]any{})
if err == nil {
t.Fatal("RenderPrompt() error = nil, want error")
}
if !strings.Contains(err.Error(), "read embedded prompt") {
t.Fatalf("RenderPrompt() error = %v, want embedded read error", err)
}
}
func TestLoadRejectsUnknownProvider(t *testing.T) {
tmpDir := t.TempDir()
configPath := filepath.Join(tmpDir, "config.yaml")
if err := os.WriteFile(configPath, []byte(strings.TrimSpace(`
provider:
text: mystery
`)), 0o644); err != nil {
t.Fatalf("write config: %v", err)
}
_, err := Load(configPath)
if err == nil {
t.Fatal("Load() error = nil, want error")
}
if !strings.Contains(err.Error(), "unknown text provider") {
t.Fatalf("Load() error = %v, want unknown provider error", err)
}
}
func TestHomeDirReturnsFallbackWhenResolutionFails(t *testing.T) {
oldUserHomeDir := userHomeDir
t.Cleanup(func() {
userHomeDir = oldUserHomeDir
})
userHomeDir = func() (string, error) {
return "", errors.New("boom")
}
homeDir, err := HomeDir()
if err == nil {
t.Fatal("HomeDir() error = nil, want error")
}
if homeDir != "." {
t.Fatalf("HomeDir() homeDir = %q, want %q", homeDir, ".")
}
}
|
