1 package net.pterodactylus.sone.core
3 import com.google.common.base.Ticker
4 import com.google.common.io.ByteStreams
5 import freenet.keys.FreenetURI
6 import net.pterodactylus.sone.core.FreenetInterface.BackgroundFetchCallback
7 import net.pterodactylus.sone.test.capture
8 import net.pterodactylus.sone.test.mock
9 import org.hamcrest.MatcherAssert.assertThat
10 import org.hamcrest.Matchers.`is`
11 import org.hamcrest.Matchers.equalTo
13 import org.mockito.ArgumentMatchers.any
14 import org.mockito.ArgumentMatchers.eq
15 import org.mockito.Mockito.`when`
16 import org.mockito.Mockito.times
17 import org.mockito.Mockito.verify
18 import java.io.ByteArrayOutputStream
19 import java.util.concurrent.TimeUnit
22 * Unit test for [DefaultElementLoaderTest].
24 class DefaultElementLoaderTest {
27 private const val IMAGE_ID = "KSK@gpl.png"
28 private val freenetURI = FreenetURI(IMAGE_ID)
29 private const val decomposedKey = "CHK@DCiVgTWW9nnWHJc9EVwtFJ6jAfBSVyy~rgiPvhUKbS4,mNY85V0x7dYcv7SnEYo1PCC6y2wNWMDNt-y9UWQx9fI,AAMC--8/fru%CC%88hstu%CC%88ck.jpg"
30 private const val normalizedKey = "CHK@DCiVgTWW9nnWHJc9EVwtFJ6jAfBSVyy~rgiPvhUKbS4,mNY85V0x7dYcv7SnEYo1PCC6y2wNWMDNt-y9UWQx9fI,AAMC--8/frühstück.jpg"
31 private const val textKey = "KSK@gpl.html"
32 private val sizeOkay = 2097152L
33 private val sizeNotOkay = sizeOkay + 1
36 private val freenetInterface = mock<FreenetInterface>()
37 private val ticker = mock<Ticker>()
38 private val elementLoader = DefaultElementLoader(freenetInterface, ticker)
39 private val callback = capture<BackgroundFetchCallback>()
42 fun `image loader starts request for link that is not known`() {
43 elementLoader.loadElement(IMAGE_ID)
44 verify(freenetInterface).startFetch(eq(freenetURI), any<BackgroundFetchCallback>())
48 fun `element loader only starts request once`() {
49 elementLoader.loadElement(IMAGE_ID)
50 elementLoader.loadElement(IMAGE_ID)
51 verify(freenetInterface).startFetch(eq(freenetURI), any<BackgroundFetchCallback>())
55 fun `element loader returns loading element on first call`() {
56 assertThat(elementLoader.loadElement(IMAGE_ID).loading, `is`(true))
60 fun `element loader does not cancel on image mime type with 2 mib size`() {
61 elementLoader.loadElement(IMAGE_ID)
62 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
63 assertThat(callback.value.shouldCancel(freenetURI, "image/png", sizeOkay), `is`(false))
67 fun `element loader does cancel on image mime type with more than 2 mib size`() {
68 elementLoader.loadElement(IMAGE_ID)
69 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
70 assertThat(callback.value.shouldCancel(freenetURI, "image/png", sizeNotOkay), `is`(true))
74 fun `element loader does cancel on audio mime type`() {
75 elementLoader.loadElement(IMAGE_ID)
76 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
77 assertThat(callback.value.shouldCancel(freenetURI, "audio/mpeg", sizeOkay), `is`(true))
81 fun `element loader does cancel on video mime type`() {
82 elementLoader.loadElement(IMAGE_ID)
83 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
84 assertThat(callback.value.shouldCancel(freenetURI, "video/mkv", sizeOkay), `is`(true))
88 fun `element loader does cancel on text mime type`() {
89 elementLoader.loadElement(IMAGE_ID)
90 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
91 assertThat(callback.value.shouldCancel(freenetURI, "text/plain", sizeOkay), `is`(true))
95 fun `image loader can load image`() {
96 elementLoader.loadElement(decomposedKey)
97 verify(freenetInterface).startFetch(eq(FreenetURI(decomposedKey)), callback.capture())
98 callback.value.loaded(FreenetURI(normalizedKey), "image/png", read("/static/images/unknown-image-0.png"))
99 val linkedElement = elementLoader.loadElement(decomposedKey)
100 assertThat(linkedElement, `is`(LinkedElement(normalizedKey, properties = mapOf("size" to 2451, "sizeHuman" to "2 KiB"))))
104 fun `element loader can extract description from description header`() {
105 elementLoader.loadElement(textKey)
106 verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
107 callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader.html"))
108 val linkedElement = elementLoader.loadElement(textKey)
109 assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
111 "sizeHuman" to "266 B",
112 "title" to "Some Nice Page Title",
113 "description" to "This is an example of a very nice freesite."
118 fun `element loader can extract description from first non-heading paragraph`() {
119 elementLoader.loadElement(textKey)
120 verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
121 callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader2.html"))
122 val linkedElement = elementLoader.loadElement(textKey)
123 assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
125 "sizeHuman" to "185 B",
126 "title" to "Some Nice Page Title",
127 "description" to "This is the first paragraph of the very nice freesite."
132 fun `element loader can not extract description if html is more complicated`() {
133 elementLoader.loadElement(textKey)
134 verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
135 callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader3.html"))
136 val linkedElement = elementLoader.loadElement(textKey)
137 assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
139 "sizeHuman" to "204 B",
140 "title" to "Some Nice Page Title",
141 "description" to null
146 fun `element loader can not extract title if it is missing`() {
147 elementLoader.loadElement(textKey)
148 verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
149 callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader4.html"))
150 val linkedElement = elementLoader.loadElement(textKey)
151 assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
153 "sizeHuman" to "229 B",
155 "description" to "This is an example of a very nice freesite."
160 fun `image is not loaded again after it failed`() {
161 elementLoader.loadElement(IMAGE_ID)
162 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
163 callback.value.failed(freenetURI)
164 assertThat(elementLoader.loadElement(IMAGE_ID).failed, `is`(true))
165 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
169 fun `image is loaded again after failure cache is expired`() {
170 elementLoader.loadElement(IMAGE_ID)
171 verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
172 callback.value.failed(freenetURI)
173 `when`(ticker.read()).thenReturn(TimeUnit.MINUTES.toNanos(31))
174 val linkedElement = elementLoader.loadElement(IMAGE_ID)
175 assertThat(linkedElement.failed, `is`(false))
176 assertThat(linkedElement.loading, `is`(true))
177 verify(freenetInterface, times(2)).startFetch(eq(freenetURI), callback.capture())
180 private fun read(resource: String): ByteArray =
181 javaClass.getResourceAsStream(resource)?.use { input ->
182 ByteArrayOutputStream().use {
183 ByteStreams.copy(input, it)