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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package scraper // import "miniflux.app/v2/internal/reader/scraper"
import (
"bytes"
"os"
"strings"
"testing"
)
func TestGetPredefinedRules(t *testing.T) {
if getPredefinedScraperRules("http://www.phoronix.com/") == "" {
t.Error("Unable to find rule for phoronix.com")
}
if getPredefinedScraperRules("https://www.linux.com/") == "" {
t.Error("Unable to find rule for linux.com")
}
if getPredefinedScraperRules("https://linux.com/") == "" {
t.Error("Unable to find rule for linux.com")
}
if getPredefinedScraperRules("https://example.org/") != "" {
t.Error("A rule not defined should not return anything")
}
}
func TestWhitelistedContentTypes(t *testing.T) {
scenarios := map[string]bool{
"text/html": true,
"TeXt/hTmL": true,
"application/xhtml+xml": true,
"text/html; charset=utf-8": true,
"application/xhtml+xml; charset=utf-8": true,
"text/css": false,
"application/javascript": false,
"image/png": false,
"application/pdf": false,
}
for inputValue, expectedResult := range scenarios {
actualResult := isAllowedContentType(inputValue)
if actualResult != expectedResult {
t.Errorf(`Unexpected result for content type whitelist, got "%v" instead of "%v"`, actualResult, expectedResult)
}
}
}
func TestSelectorRules(t *testing.T) {
var ruleTestCases = map[string]string{
"img.html": "article > img",
"iframe.html": "article > iframe",
"p.html": "article > p",
}
for filename, rule := range ruleTestCases {
html, err := os.ReadFile("testdata/" + filename)
if err != nil {
t.Fatalf(`Unable to read file %q: %v`, filename, err)
}
_, actualResult, err := findContentUsingCustomRules(bytes.NewReader(html), rule)
if err != nil {
t.Fatalf(`Scraping error for %q - %q: %v`, filename, rule, err)
}
expectedResult, err := os.ReadFile("testdata/" + filename + "-result")
if err != nil {
t.Fatalf(`Unable to read file %q: %v`, filename, err)
}
if actualResult != strings.TrimSpace(string(expectedResult)) {
t.Errorf(`Unexpected result for %q, got %q instead of %q`, rule, actualResult, expectedResult)
}
}
}
func TestParseBaseURLWithCustomRules(t *testing.T) {
html := `<html><head><base href="https://example.com/"></head><body><img src="image.jpg"></body></html>`
baseURL, _, err := findContentUsingCustomRules(strings.NewReader(html), "img")
if err != nil {
t.Fatalf(`Scraping error: %v`, err)
}
if baseURL != "https://example.com/" {
t.Errorf(`Unexpected base URL, got %q instead of "https://example.com/"`, baseURL)
}
}
func TestParseMultipleBaseURLWithCustomRules(t *testing.T) {
html := `<html><head><base href="https://example.com/"><base href="https://example.org/"/></head><body><img src="image.jpg"></body></html>`
baseURL, _, err := findContentUsingCustomRules(strings.NewReader(html), "img")
if err != nil {
t.Fatalf(`Scraping error: %v`, err)
}
if baseURL != "https://example.com/" {
t.Errorf(`Unexpected base URL, got %q instead of "https://example.com/"`, baseURL)
}
}
func TestParseRelativeBaseURLWithCustomRules(t *testing.T) {
html := `<html><head><base href="/test"></head><body><img src="image.jpg"></body></html>`
baseURL, _, err := findContentUsingCustomRules(strings.NewReader(html), "img")
if err != nil {
t.Fatalf(`Scraping error: %v`, err)
}
if baseURL != "" {
t.Errorf(`Unexpected base URL, got %q`, baseURL)
}
}
func TestParseEmptyBaseURLWithCustomRules(t *testing.T) {
html := `<html><head><base href=" "></head><body><img src="image.jpg"></body></html>`
baseURL, _, err := findContentUsingCustomRules(strings.NewReader(html), "img")
if err != nil {
t.Fatalf(`Scraping error: %v`, err)
}
if baseURL != "" {
t.Errorf(`Unexpected base URL, got %q instead of ""`, baseURL)
}
}
func TestParseMissingBaseURLWithCustomRules(t *testing.T) {
html := `<html><head></head><body><img src="image.jpg"></body></html>`
baseURL, _, err := findContentUsingCustomRules(strings.NewReader(html), "img")
if err != nil {
t.Fatalf(`Scraping error: %v`, err)
}
if baseURL != "" {
t.Errorf(`Unexpected base URL, got %q instead of ""`, baseURL)
}
}
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