package net.pterodactylus.sone.core
import com.google.common.base.Ticker
-import com.google.common.io.ByteStreams
import freenet.keys.FreenetURI
import net.pterodactylus.sone.core.FreenetInterface.BackgroundFetchCallback
import net.pterodactylus.sone.test.*
import org.hamcrest.MatcherAssert.assertThat
+import org.hamcrest.Matchers.contains
import org.hamcrest.Matchers.equalTo
+import org.junit.Rule
import org.junit.Test
-import org.mockito.ArgumentMatchers.any
-import org.mockito.ArgumentMatchers.eq
-import org.mockito.Mockito.times
-import org.mockito.Mockito.verify
import java.io.ByteArrayOutputStream
-import java.util.concurrent.TimeUnit
+import java.util.concurrent.TimeUnit.MINUTES
+import java.util.concurrent.atomic.AtomicReference
+import kotlin.math.min
/**
* Unit test for [DefaultElementLoaderTest].
*/
class DefaultElementLoaderTest {
- private val freenetInterface = mock<FreenetInterface>()
- private val ticker = mock<Ticker>()
- private val elementLoader = DefaultElementLoader(freenetInterface, ticker)
- private val callback = capture<BackgroundFetchCallback>()
-
@Test
fun `image loader starts request for link that is not known`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), any<BackgroundFetchCallback>())
+ runWithCallback(IMAGE_ID) { _, _, _, fetchedUris ->
+ assertThat(fetchedUris, contains(freenetURI))
+ }
}
@Test
fun `element loader only starts request once`() {
- elementLoader.loadElement(IMAGE_ID)
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), any<BackgroundFetchCallback>())
+ runWithCallback(IMAGE_ID) { elementLoader, _, _, fetchedUris ->
+ elementLoader.loadElement(IMAGE_ID)
+ assertThat(fetchedUris, contains(freenetURI))
+ }
}
@Test
fun `element loader returns loading element on first call`() {
- assertThat(elementLoader.loadElement(IMAGE_ID).loading, equalTo(true))
+ runWithCallback(IMAGE_ID) { _, linkedElement, _, _ ->
+ assertThat(linkedElement.loading, equalTo(true))
+ }
}
@Test
fun `element loader does not cancel on image mime type with 2 mib size`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "image/png", sizeOkay), equalTo(false))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "image/png", sizeOkay), equalTo(false))
+ }
}
@Test
fun `element loader does cancel on image mime type with more than 2 mib size`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "image/png", sizeNotOkay), equalTo(true))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "image/png", sizeNotOkay), equalTo(true))
+ }
}
@Test
fun `element loader does cancel on audio mime type`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "audio/mpeg", sizeOkay), equalTo(true))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "audio/mpeg", sizeOkay), equalTo(true))
+ }
}
@Test
fun `element loader does cancel on video mime type`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "video/mkv", sizeOkay), equalTo(true))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "video/mkv", sizeOkay), equalTo(true))
+ }
}
@Test
fun `element loader does cancel on text mime type`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "text/plain", sizeOkay), equalTo(true))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "text/plain", sizeOkay), equalTo(true))
+ }
}
@Test
fun `element loader does not cancel on text html mime type`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- assertThat(callback.value.shouldCancel(freenetURI, "text/html", sizeOkay), equalTo(false))
+ runWithCallback(IMAGE_ID) { _, _, callback, _ ->
+ assertThat(callback.shouldCancel(freenetURI, "text/html", sizeOkay), equalTo(false))
+ }
}
@Test
fun `image loader can load image`() {
- elementLoader.loadElement(decomposedKey)
- verify(freenetInterface).startFetch(eq(FreenetURI(decomposedKey)), callback.capture())
- callback.value.loaded(FreenetURI(normalizedKey), "image/png", read("/static/images/unknown-image-0.png"))
- val linkedElement = elementLoader.loadElement(decomposedKey)
- assertThat(linkedElement, equalTo(LinkedElement(normalizedKey, properties = mapOf(
- "type" to "image", "size" to 2451, "sizeHuman" to "2 KiB"
- ))))
+ runWithCallback(decomposedKey) { elementLoader, _, callback, _ ->
+ callback.loaded(FreenetURI(normalizedKey), "image/png", read("/static/images/unknown-image-0.png"))
+ val linkedElement = elementLoader.loadElement(decomposedKey)
+ mapOf(
+ "type" to "image",
+ "size" to 2451,
+ "sizeHuman" to "2 KiB"
+ ).also { assertThat(linkedElement, equalTo(LinkedElement(normalizedKey, properties = it))) }
+ }
}
@Test
fun `element loader can extract description from description header`() {
- elementLoader.loadElement(textKey)
- verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
- callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader.html"))
- val linkedElement = elementLoader.loadElement(textKey)
- assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
+ runWithCallback(textKey) { elementLoader, _, callback, _ ->
+ callback.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader.html"))
+ val linkedElement = elementLoader.loadElement(textKey)
+ mapOf(
"type" to "html",
"size" to 266,
"sizeHuman" to "266 B",
"title" to "Some Nice Page Title",
"description" to "This is an example of a very nice freesite."
- ))))
+ ).also { assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = it))) }
+ }
}
@Test
fun `element loader can extract description from first non-heading paragraph`() {
- elementLoader.loadElement(textKey)
- verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
- callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader2.html"))
- val linkedElement = elementLoader.loadElement(textKey)
- assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
+ runWithCallback(textKey) { elementLoader, _, callback, _ ->
+ callback.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader2.html"))
+ val linkedElement = elementLoader.loadElement(textKey)
+ mapOf(
"type" to "html",
"size" to 185,
"sizeHuman" to "185 B",
"title" to "Some Nice Page Title",
"description" to "This is the first paragraph of the very nice freesite."
- ))))
+ ).also { assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = it))) }
+ }
}
@Test
fun `element loader can not extract description if html is more complicated`() {
- elementLoader.loadElement(textKey)
- verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
- callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader3.html"))
- val linkedElement = elementLoader.loadElement(textKey)
- assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
+ runWithCallback(textKey) { elementLoader, _, callback, _ ->
+ callback.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader3.html"))
+ val linkedElement = elementLoader.loadElement(textKey)
+ mapOf(
"type" to "html",
"size" to 204,
"sizeHuman" to "204 B",
"title" to "Some Nice Page Title",
"description" to null
- ))))
+ ).also { assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = it))) }
+ }
}
@Test
fun `element loader can not extract title if it is missing`() {
- elementLoader.loadElement(textKey)
- verify(freenetInterface).startFetch(eq(FreenetURI(textKey)), callback.capture())
- callback.value.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader4.html"))
- val linkedElement = elementLoader.loadElement(textKey)
- assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = mapOf(
+ runWithCallback(textKey) { elementLoader, _, callback, _ ->
+ callback.loaded(FreenetURI(textKey), "text/html; charset=UTF-8", read("element-loader4.html"))
+ val linkedElement = elementLoader.loadElement(textKey)
+ mapOf(
"type" to "html",
"size" to 229,
"sizeHuman" to "229 B",
"title" to null,
"description" to "This is an example of a very nice freesite."
- ))))
+ ).also { assertThat(linkedElement, equalTo(LinkedElement(textKey, properties = it))) }
+ }
}
@Test
fun `image is not loaded again after it failed`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- callback.value.failed(freenetURI)
- assertThat(elementLoader.loadElement(IMAGE_ID).failed, equalTo(true))
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
+ runWithCallback(IMAGE_ID) { elementLoader, _, callback, _ ->
+ elementLoader.loadElement(IMAGE_ID)
+ callback.failed(freenetURI)
+ assertThat(elementLoader.loadElement(IMAGE_ID).failed, equalTo(true))
+ }
}
@Test
fun `image is loaded again after failure cache is expired`() {
- elementLoader.loadElement(IMAGE_ID)
- verify(freenetInterface).startFetch(eq(freenetURI), callback.capture())
- callback.value.failed(freenetURI)
- whenever(ticker.read()).thenReturn(TimeUnit.MINUTES.toNanos(31))
- val linkedElement = elementLoader.loadElement(IMAGE_ID)
- assertThat(linkedElement.failed, equalTo(false))
- assertThat(linkedElement.loading, equalTo(true))
- verify(freenetInterface, times(2)).startFetch(eq(freenetURI), callback.capture())
+ runWithCallback(IMAGE_ID, createTicker(1, MINUTES.toNanos(31))) { elementLoader, _, callback, _ ->
+ elementLoader.loadElement(IMAGE_ID)
+ callback.failed(freenetURI)
+ val linkedElement = elementLoader.loadElement(IMAGE_ID)
+ assertThat(linkedElement.failed, equalTo(false))
+ assertThat(linkedElement.loading, equalTo(true))
+ }
}
private fun read(resource: String): ByteArray =
- javaClass.getResourceAsStream(resource)?.use { input ->
- ByteArrayOutputStream().use {
- ByteStreams.copy(input, it)
- it
- }.toByteArray()
- } ?: ByteArray(0)
+ javaClass.getResourceAsStream(resource)?.use { input ->
+ ByteArrayOutputStream().use {
+ input.copyTo(it)
+ it
+ }.toByteArray()
+ } ?: ByteArray(0)
+
+ @get:Rule
+ val silencedLoggin = silencedLogging()
+
+}
+
+private fun runWithCallback(requestUri: String, ticker: Ticker = createTicker(), callbackAction: (elementLoader: ElementLoader, linkedElement: LinkedElement, callback: BackgroundFetchCallback, fetchedUris: List<FreenetURI>) -> Unit) {
+ val fetchedUris = mutableListOf<FreenetURI>()
+ val callback = AtomicReference<BackgroundFetchCallback>()
+ val freenetInterface = overrideStartFetch { uri, backgroundFetchCallback ->
+ fetchedUris += uri
+ callback.set(backgroundFetchCallback)
+ }
+ val elementLoader = DefaultElementLoader(freenetInterface, ticker)
+ val linkedElement = elementLoader.loadElement(requestUri)
+ callbackAction(elementLoader, linkedElement, callback.get(), fetchedUris)
+}
+
+private fun overrideStartFetch(action: (FreenetURI, BackgroundFetchCallback) -> Unit) = object : FreenetInterface(null, null, null, null, null, dummyHighLevelSimpleClientCreator) {
+ override fun startFetch(uri: FreenetURI, backgroundFetchCallback: BackgroundFetchCallback) {
+ action(uri, backgroundFetchCallback)
+ }
+}
+private fun createTicker(vararg times: Long = LongArray(1) { 1 }) = object : Ticker() {
+ private var counter = 0
+ override fun read() =
+ times[min(times.size - 1, counter)]
+ .also { counter++ }
}
private const val IMAGE_ID = "KSK@gpl.png"
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