Cthulhu is no longer a fork. Now it is a screen reader written in Golang.

internal/tentacle/registry_test.go

@@ -0,0 +1,105 @@
+package tentacle
+
+import (
+	"bytes"
+	"os"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestRegistryEmptyRoundTripAndConflict(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "settings", "tentacles.toml")
+	registry := &Registry{Path: path}
+	entries, err := registry.Load()
+	if err != nil || len(entries) != 0 {
+		t.Fatalf("fresh registry: %v %v", entries, err)
+	}
+	if _, err := os.Stat(filepath.Dir(path)); !os.IsNotExist(err) {
+		t.Fatal("reading defaults created files")
+	}
+	entries = []Entry{{ID: "example", Program: []string{"/usr/bin/example", "literal $(data)"}, Enabled: true, Presentation: true}}
+	if err := registry.Save(entries); err != nil {
+		t.Fatal(err)
+	}
+	info, _ := os.Stat(path)
+	if info.Mode().Perm() != 0600 {
+		t.Fatalf("permissions: %v", info.Mode())
+	}
+	other := &Registry{Path: path}
+	loaded, err := other.Load()
+	if err != nil || !reflect.DeepEqual(entries, loaded) {
+		t.Fatalf("round trip: %v %v", loaded, err)
+	}
+	entries[0].Enabled = false
+	if err := registry.Save(entries); err != nil {
+		t.Fatal(err)
+	}
+	before, _ := os.ReadFile(path)
+	if err := other.Save(nil); err == nil {
+		t.Fatal("stale writer replaced current registry")
+	}
+	after, _ := os.ReadFile(path)
+	if !bytes.Equal(before, after) {
+		t.Fatal("failed save changed file")
+	}
+	if err := registry.Save(nil); err != nil {
+		t.Fatal(err)
+	}
+	loaded, err = other.Load()
+	if err != nil || len(loaded) != 0 {
+		t.Fatalf("remove all: %v %v", loaded, err)
+	}
+}
+
+func TestRegistryRejectsInvalidWithoutReplacement(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "tentacles.toml")
+	for _, data := range []string{
+		"", "version = 2\n", "version = 1\nunknown = true\n",
+		"version = 1\n[[tentacles]]\nid = 'relative'\nprogram = ['relative']\n",
+		"version = 1\n" + strings.Repeat("[[tentacles]]\nid = 'duplicate'\nprogram = ['/usr/bin/example']\n", 2),
+		strings.Repeat("x", MaxFrameBytes+1),
+	} {
+		if err := os.WriteFile(path, []byte(data), 0600); err != nil {
+			t.Fatal(err)
+		}
+		registry := &Registry{Path: path}
+		if _, err := registry.Load(); err == nil {
+			t.Fatalf("accepted invalid registry: %.80s", data)
+		}
+		if err := registry.Save(nil); err == nil {
+			t.Fatal("saved after failed load")
+		}
+		after, _ := os.ReadFile(path)
+		if string(after) != data {
+			t.Fatal("invalid registry overwritten")
+		}
+	}
+	link := path + ".link"
+	if err := os.Symlink(path, link); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := (&Registry{Path: link}).Load(); err == nil {
+		t.Fatal("accepted symlink")
+	}
+}
+
+func TestRegistryInteractionGrantRoundTrip(t *testing.T) {
+	registry := &Registry{Path: filepath.Join(t.TempDir(), "tentacles.toml")}
+	if _, err := registry.Load(); err != nil {
+		t.Fatal(err)
+	}
+	entry := Entry{ID: "wormhole", Program: []string{"/tmp/wormhole-tentacle"}, Enabled: true, Presentation: true, Interaction: true}
+	if err := registry.Save([]Entry{entry}); err != nil {
+		t.Fatal(err)
+	}
+	loaded, err := registry.Load()
+	if err != nil || len(loaded) != 1 || !loaded[0].Spec().Interaction {
+		t.Fatal(loaded, err)
+	}
+	entry.Presentation = false
+	if err := registry.Save([]Entry{entry}); err == nil {
+		t.Fatal("interaction without presentation accepted")
+	}
+}