test: add tests for helpers

build.gradle.kts

@@ -44,6 +44,7 @@ dependencies {
     testImplementation("org.jetbrains.kotlin:kotlin-test-junit5")
     testImplementation("org.springframework.integration:spring-integration-test")
     testImplementation("org.springframework.kafka:spring-kafka-test")
+    testImplementation("org.mockito.kotlin:mockito-kotlin:5.4.0")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 

src/test/kotlin/dev/pcvolkmer/oncoanalytics/monitor/HelpersTest.kt

@@ -0,0 +1,59 @@
+package dev.pcvolkmer.oncoanalytics.monitor
+
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.Condition
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.ConditionId
+import dev.pcvolkmer.oncoanalytics.monitor.conditions.ConditionRepository
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+import org.mockito.Mock
+import org.mockito.junit.jupiter.MockitoExtension
+import org.mockito.kotlin.whenever
+
+@ExtendWith(MockitoExtension::class)
+class HelpersTest {
+
+    private lateinit var conditionsRepository: ConditionRepository
+
+    @BeforeEach
+    fun setup(
+        @Mock conditionRepository: ConditionRepository
+    ) {
+        this.conditionsRepository = conditionRepository
+    }
+
+    @Test
+    fun statisticsContainAllRequiredKeys() {
+        val actual = fetchStatistics("test", this.conditionsRepository).entries.map { it.name }
+
+        assertThat(actual).isEqualTo(allKeys)
+    }
+
+    @Test
+    fun correctStatistics() {
+        whenever(this.conditionsRepository.findAll()).thenReturn(conditionForEachKey)
+
+        val actual = fetchStatistics("test", this.conditionsRepository)
+
+        actual.entries.forEach { entry ->
+            assertThat(entry.count).isEqualTo(1)
+        }
+    }
+
+    companion object {
+        val conditionForEachKey = allKeys
+            .map { key -> key.split("[,\\-]".toRegex()).first().toString() }
+            .map { key ->
+                if (key == "Other" || key.contains('.', true)) {
+                    key
+                } else {
+                    "$key.9"
+                }
+            }
+            .map { icd10 ->
+                Condition(ConditionId("TEST$icd10"), icd10, 1)
+            }
+    }
+
+}