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|
package ogtags
import (
"fmt"
"io"
"net/http"
"net/http/httptest"
"os"
"strings"
"testing"
"time"
)
func TestFetchHTMLDocument(t *testing.T) {
tests := []struct {
name string
htmlContent string
contentType string
statusCode int
contentLength int64
expectError bool
}{
{
name: "Valid HTML",
htmlContent: `<!DOCTYPE html>
<html>
<head><title>Test</title></head>
<body><p>Test content</p></body>
</html>`,
contentType: "text/html",
statusCode: http.StatusOK,
expectError: false,
},
{
name: "Empty HTML",
htmlContent: "",
contentType: "text/html",
statusCode: http.StatusOK,
expectError: false,
},
{
name: "Not found error",
htmlContent: "",
contentType: "text/html",
statusCode: http.StatusNotFound,
expectError: true,
},
{
name: "Unsupported Content-Type",
htmlContent: "*Insert rick roll here*",
contentType: "video/mp4",
statusCode: http.StatusOK,
expectError: true,
},
{
name: "Too large content",
contentType: "text/html",
statusCode: http.StatusOK,
expectError: true,
contentLength: 5 * 1024 * 1024, // 5MB (over 2MB limit)
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if tt.contentType != "" {
w.Header().Set("Content-Type", tt.contentType)
}
if tt.contentLength > 0 {
// Simulate content length but avoid sending too much actual data
w.Header().Set("Content-Length", fmt.Sprintf("%d", tt.contentLength))
io.CopyN(w, strings.NewReader("X"), tt.contentLength)
} else {
w.WriteHeader(tt.statusCode)
w.Write([]byte(tt.htmlContent))
}
}))
defer ts.Close()
cache := NewOGTagCache("", true, time.Minute)
doc, err := cache.fetchHTMLDocument(ts.URL)
if tt.expectError {
if err == nil {
t.Error("expected error, got nil")
}
if doc != nil {
t.Error("expected nil document on error, got non-nil")
}
} else {
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if doc == nil {
t.Error("expected non-nil document, got nil")
}
}
})
}
}
func TestFetchHTMLDocumentInvalidURL(t *testing.T) {
if os.Getenv("DONT_USE_NETWORK") != "" {
t.Skip("test requires theoretical network egress")
}
cache := NewOGTagCache("", true, time.Minute)
doc, err := cache.fetchHTMLDocument("http://invalid.url.that.doesnt.exist.example")
if err == nil {
t.Error("expected error for invalid URL, got nil")
}
if doc != nil {
t.Error("expected nil document for invalid URL, got non-nil")
}
}
|
