Personal RAG

package main

import (
	"context"
	"database/sql"
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"testing"

	_ "modernc.org/sqlite"
)

func testApp(t *testing.T) *App {
	t.Helper()
	path := filepath.Join(t.TempDir(), "knowledge.db")
	db, err := sql.Open("sqlite", path)
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { db.Close() })
	a := &App{db: db, dbPath: path}
	if err := a.migrate(); err != nil {
		t.Fatal(err)
	}
	return a
}

func TestAddTextDuplicateAndUpdateFTS(t *testing.T) {
	a := testApp(t)
	ctx := context.Background()
	_, first, err := a.addText(ctx, nil, AddTextInput{Title: "Old", Text: "unique old phrase", Tags: []string{"one"}})
	if err != nil {
		t.Fatal(err)
	}
	_, duplicate, err := a.addText(ctx, nil, AddTextInput{Title: "Other", Text: "unique old phrase"})
	if err != nil {
		t.Fatal(err)
	}
	if !duplicate.AlreadyExists || duplicate.ID != first.ID {
		t.Fatalf("duplicate = %+v, first = %+v", duplicate, first)
	}

	title, content := "New", "fresh searchable phrase"
	_, updated, err := a.update(ctx, nil, UpdateInput{ID: first.ID, Title: &title, Content: &content, Tags: []string{"two"}})
	if err != nil {
		t.Fatal(err)
	}
	if !updated.Updated {
		t.Fatal("expected update")
	}
	_, found, err := a.search(ctx, nil, SearchInput{Query: "fresh", Limit: 5})
	if err != nil {
		t.Fatal(err)
	}
	if len(found.Results) != 1 || found.Results[0].ID != first.ID || found.Results[0].Title != title {
		t.Fatalf("results = %+v", found.Results)
	}
	_, old, err := a.search(ctx, nil, SearchInput{Query: "unique", Limit: 5})
	if err != nil {
		t.Fatal(err)
	}
	if len(old.Results) != 0 {
		t.Fatalf("old FTS content still found: %+v", old.Results)
	}
}

func TestAddFactDuplicate(t *testing.T) {
	a := testApp(t)
	in := AddFactInput{Subject: "s", Predicate: "p", Value: "v"}
	_, first, err := a.addFact(context.Background(), nil, in)
	if err != nil {
		t.Fatal(err)
	}
	_, duplicate, err := a.addFact(context.Background(), nil, in)
	if err != nil {
		t.Fatal(err)
	}
	if !duplicate.AlreadyExists || duplicate.ID != first.ID {
		t.Fatalf("duplicate = %+v, first = %+v", duplicate, first)
	}
}

func TestBearerAuth(t *testing.T) {
	const token = "test-secret"
	tests := []struct {
		name   string
		header string
		path   string
		status int
		called bool
	}{
		{name: "valid header token", header: "Bearer " + token, path: "/", status: http.StatusNoContent, called: true},
		{name: "valid path token", path: "/token=" + token, status: http.StatusNoContent, called: true},
		{name: "missing token", path: "/", status: http.StatusUnauthorized},
		{name: "wrong token", header: "Bearer wrong", path: "/", status: http.StatusUnauthorized},
		{name: "wrong path token", path: "/token=wrong", status: http.StatusUnauthorized},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			called := false
			next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
				called = true
				w.WriteHeader(http.StatusNoContent)
			})
			req := httptest.NewRequest(http.MethodPost, tt.path, nil)
			if tt.header != "" {
				req.Header.Set("Authorization", tt.header)
			}
			response := httptest.NewRecorder()
			bearerAuth(next, token).ServeHTTP(response, req)
			if response.Code != tt.status {
				t.Fatalf("status = %d, want %d", response.Code, tt.status)
			}
			if called != tt.called {
				t.Fatalf("handler called = %v, want %v", called, tt.called)
			}
			if tt.called && req.URL.Path != "/" {
				t.Fatalf("handler path = %q, want /", req.URL.Path)
			}
		})
	}
}