Test Title

package ogtags import ( "net/http" "net/http/httptest" "net/url" "testing" "time" ) func TestCheckCache(t *testing.T) { cache := NewOGTagCache("http://example.com", true, time.Minute) // Set up test data urlStr := "http://example.com/page" expectedTags := map[string]string{ "og:title": "Test Title", "og:description": "Test Description", } // Test cache miss tags := cache.checkCache(urlStr) if tags != nil { t.Errorf("expected nil tags on cache miss, got %v", tags) } // Manually add to cache cache.cache.Set(urlStr, expectedTags, time.Minute) // Test cache hit tags = cache.checkCache(urlStr) if tags == nil { t.Fatal("expected non-nil tags on cache hit, got nil") } for key, expectedValue := range expectedTags { if value, ok := tags[key]; !ok || value != expectedValue { t.Errorf("expected %s: %s, got: %s", key, expectedValue, value) } } } func TestGetOGTags(t *testing.T) { var loadCount int // Counter to track how many times the test route is loaded // Create a test server to serve a sample HTML page with OG tags ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { loadCount++ if loadCount > 1 { t.Fatalf("Test route loaded more than once, cache failed") } w.Header().Set("Content-Type", "text/html") w.Write([]byte(`

Hello, world!

`)) })) defer ts.Close() // Create an instance of OGTagCache with a short TTL for testing cache := NewOGTagCache(ts.URL, true, 1*time.Minute) // Parse the test server URL parsedURL, err := url.Parse(ts.URL) if err != nil { t.Fatalf("failed to parse test server URL: %v", err) } // Test fetching OG tags from the test server ogTags, err := cache.GetOGTags(parsedURL) if err != nil { t.Fatalf("failed to get OG tags: %v", err) } // Verify the fetched OG tags expectedTags := map[string]string{ "og:title": "Test Title", "og:description": "Test Description", "og:image": "http://example.com/image.jpg", } for key, expectedValue := range expectedTags { if value, ok := ogTags[key]; !ok || value != expectedValue { t.Errorf("expected %s: %s, got: %s", key, expectedValue, value) } } // Test fetching OG tags from the cache ogTags, err = cache.GetOGTags(parsedURL) if err != nil { t.Fatalf("failed to get OG tags from cache: %v", err) } // Test fetching OG tags from the cache (3rd time) newOgTags, err := cache.GetOGTags(parsedURL) if err != nil { t.Fatalf("failed to get OG tags from cache: %v", err) } // Verify the cached OG tags for key, expectedValue := range expectedTags { if value, ok := ogTags[key]; !ok || value != expectedValue { t.Errorf("expected %s: %s, got: %s", key, expectedValue, value) } initialValue := ogTags[key] cachedValue, ok := newOgTags[key] if !ok || initialValue != cachedValue { t.Errorf("Cache does not line up: expected %s: %s, got: %s", key, initialValue, cachedValue) } } }