✨ Add metrics page

[Sone.git] / src / test / kotlin / net / pterodactylus / sone / web / pages / MetricsPageTest.kt

diff --git a/src/test/kotlin/net/pterodactylus/sone/web/pages/MetricsPageTest.kt b/src/test/kotlin/net/pterodactylus/sone/web/pages/MetricsPageTest.kt
new file mode 100644 (file)
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+++ b/src/test/kotlin/net/pterodactylus/sone/web/pages/MetricsPageTest.kt
@@ -0,0 +1,92 @@
+/**
+ * Sone - MetricsPageTest.kt - Copyright © 2019 David ‘Bombe’ Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.web.pages
+
+import com.codahale.metrics.*
+import net.pterodactylus.sone.test.*
+import net.pterodactylus.sone.web.*
+import net.pterodactylus.sone.web.page.*
+import org.hamcrest.MatcherAssert.*
+import org.hamcrest.Matchers.*
+import kotlin.test.*
+
+class MetricsPageTest : WebPageTest({ webInterface, loaders, templateRenderer -> MetricsPage(webInterface, loaders, templateRenderer, metricRegistry) }) {
+
+       companion object {
+               val metricRegistry = MetricRegistry()
+       }
+
+       @Test
+       fun `page returns correct path`() {
+               assertThat(page.path, equalTo("metrics.html"))
+       }
+
+       @Test
+       fun `page does not require login`() {
+               assertThat(page.requiresLogin(), equalTo(false))
+       }
+
+       @Test
+       fun `page returns correct title`() {
+               addTranslation("Page.Metrics.Title", "metrics page title")
+               assertThat(page.getPageTitle(soneRequest), equalTo("metrics page title"))
+       }
+
+       @Test
+       fun `page can be created by dependency injection`() {
+               assertThat(baseInjector.getInstance<MetricsPage>(), notNullValue())
+       }
+
+       @Test
+       fun `page is annotated with the correct menuname`() {
+               assertThat(page.menuName, equalTo("Metrics"))
+       }
+
+       @Test
+       fun `page is annotated with correct template path`() {
+               assertThat(page.templatePath, equalTo("/templates/metrics.html"))
+       }
+
+       @Test
+       fun `metrics page lists stats about sone parsing durations`() {
+               createHistogram("sone.parsing.duration")
+               page.handleRequest(soneRequest, templateContext)
+               verifyHistogram("soneParsingDuration")
+       }
+
+       private fun verifyHistogram(name: String) {
+               assertThat(templateContext["${name}Count"] as Int, equalTo(5))
+               assertThat(templateContext["${name}Min"] as Long, equalTo(1L))
+               assertThat(templateContext["${name}Max"] as Long, equalTo(10L))
+               assertThat(templateContext["${name}Median"] as Double, equalTo(8.0))
+               assertThat(templateContext["${name}Percentile75"] as Double, equalTo(9.0))
+               assertThat(templateContext["${name}Percentile95"] as Double, equalTo(10.0))
+               assertThat(templateContext["${name}Percentile98"] as Double, equalTo(10.0))
+               assertThat(templateContext["${name}Percentile99"] as Double, equalTo(10.0))
+               assertThat(templateContext["${name}Percentile999"] as Double, equalTo(10.0))
+       }
+
+       private fun createHistogram(name: String) = metricRegistry.histogram(name).run {
+               update(10)
+               update(9)
+               update(1)
+               update(1)
+               update(8)
+       }
+
+}