diff --git a/src/test/kotlin/dev/pcvolkmer/oncoanalytics/monitor/web/StatisticsControllerTest.kt b/src/test/kotlin/dev/pcvolkmer/oncoanalytics/monitor/web/StatisticsControllerTest.kt
new file mode 100644
index 0000000..dd9fbef
--- /dev/null
+++ b/src/test/kotlin/dev/pcvolkmer/oncoanalytics/monitor/web/StatisticsControllerTest.kt
@@ -0,0 +1,78 @@
+package dev.pcvolkmer.oncoanalytics.monitor.web
+
+import dev.pcvolkmer.oncoanalytics.monitor.allKeys
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.Condition
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.ConditionId
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.ConditionRepository
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.extension.ExtendWith
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.Arguments
+import org.junit.jupiter.params.provider.MethodSource
+import org.mockito.Mock
+import org.mockito.junit.jupiter.MockitoExtension
+import org.mockito.junit.jupiter.MockitoSettings
+import org.mockito.kotlin.whenever
+import org.mockito.quality.Strictness
+import org.springframework.boot.test.autoconfigure.web.reactive.WebFluxTest
+import org.springframework.http.MediaType
+import org.springframework.test.context.junit.jupiter.SpringExtension
+import org.springframework.test.web.reactive.server.WebTestClient
+import java.util.stream.Stream
+
+@ExtendWith(MockitoExtension::class, SpringExtension::class)
+@WebFluxTest
+@MockitoSettings(strictness = Strictness.LENIENT)
+class StatisticsControllerTest {
+
+    private lateinit var webClient: WebTestClient
+
+    @BeforeEach
+    fun setup(
+        @Mock(name = "obdsXmlConditionRepository") obdsXmlConditionRepository: ConditionRepository,
+        @Mock(name = "fhirObdsConditionRepository") fhirObdsConditionRepository: ConditionRepository,
+        @Mock(name = "fhirPseudonymizedConditionRepository") fhirPseudonymizedConditionRepository: ConditionRepository,
+    ) {
+        val controller = StatisticsController(
+            obdsXmlConditionRepository,
+            fhirObdsConditionRepository,
+            fhirPseudonymizedConditionRepository
+        )
+        this.webClient = WebTestClient.bindToController(controller).build()
+
+        whenever(obdsXmlConditionRepository.findAll())
+            .thenReturn(listOf(Condition(ConditionId("TESTOBDSXML"), "C00.9", 1)))
+        whenever(fhirObdsConditionRepository.findAll())
+            .thenReturn(listOf(Condition(ConditionId("TESTFHIROBDS"), "C43.9")))
+        whenever(fhirPseudonymizedConditionRepository.findAll())
+            .thenReturn(listOf(Condition(ConditionId("TESTFHIRPSEUDO"), "F79.9")))
+    }
+
+    @ParameterizedTest(name = "Test request to /statistics/{0}")
+    @MethodSource("testDataSource")
+    fun shouldGetObdsXmlStatistics(statisticsName: String, entryName: String, entryIndex: Int) {
+        webClient
+            .get().uri("/statistics/{0}", statisticsName)
+            .accept(MediaType.APPLICATION_JSON)
+            .exchange()
+            .expectAll(
+                { spec -> spec.expectStatus().isOk },
+                { spec -> spec.expectHeader().contentType(MediaType.APPLICATION_JSON) },
+                { spec -> spec.expectBody().jsonPath("$.name").isEqualTo(statisticsName) },
+                { spec -> spec.expectBody().jsonPath("$.entries[%d].name", entryIndex).isEqualTo(entryName) },
+                { spec -> spec.expectBody().jsonPath("$.entries[%d].count", entryIndex).isEqualTo(1) }
+            )
+    }
+
+    companion object {
+        @JvmStatic
+        fun testDataSource(): Stream<Arguments> {
+            return Stream.of(
+                Arguments.of("obdsxml", "C00-C14", allKeys.indexOf("C00-C14")),
+                Arguments.of("fhirobds", "C43", allKeys.indexOf("C43")),
+                Arguments.of("fhirpseudonymized", "Other", allKeys.indexOf("Other"))
+            )
+        }
+    }
+
+}
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