test: add some basic arch unit tests

2 files changed, 77 insertions, 0 deletions

diff --git a/build.gradle.kts b/build.gradle.kts
index 96779d0..aecda71 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,6 +18,7 @@ var versions = mapOf(
     "hapi-fhir" to "6.10.2",
     "httpclient5" to "5.2.1",
     "mockito-kotlin" to "5.3.1",
+    "archunit" to "1.3.0",
     // Webjars
     "echarts" to "5.4.3",
     "htmx.org" to "1.9.11"
@@ -85,6 +86,7 @@ dependencies {
     testImplementation("org.mockito.kotlin:mockito-kotlin:${versions["mockito-kotlin"]}")
     integrationTestImplementation("org.testcontainers:junit-jupiter")
     integrationTestImplementation("org.testcontainers:postgresql")
+    integrationTestImplementation("com.tngtech.archunit:archunit:${versions["archunit"]}")
     // Override dependency version from org.testcontainers:junit-jupiter - CVE-2024-26308, CVE-2024-25710
     integrationTestImplementation("org.apache.commons:commons-compress:1.26.1")
 }
diff --git a/src/integrationTest/kotlin/dev/dnpm/etl/processor/EtlProcessorArchTest.kt b/src/integrationTest/kotlin/dev/dnpm/etl/processor/EtlProcessorArchTest.kt
new file mode 100644
index 0000000..0467286
--- /dev/null
+++ b/src/integrationTest/kotlin/dev/dnpm/etl/processor/EtlProcessorArchTest.kt
@@ -0,0 +1,75 @@
+package dev.dnpm.etl.processor
+
+import com.tngtech.archunit.base.DescribedPredicate.doNot
+import com.tngtech.archunit.core.domain.JavaClass.Predicates.simpleNameEndingWith
+import com.tngtech.archunit.core.domain.JavaClasses
+import com.tngtech.archunit.core.importer.ClassFileImporter
+import com.tngtech.archunit.lang.conditions.ArchPredicates.have
+import com.tngtech.archunit.lang.syntax.ArchRuleDefinition.classes
+import com.tngtech.archunit.lang.syntax.ArchRuleDefinition.noClasses
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.springframework.data.repository.Repository
+
+class EtlProcessorArchTest {
+
+    private lateinit var noTestClasses: JavaClasses
+
+    @BeforeEach
+    fun setUp() {
+        this.noTestClasses = ClassFileImporter().importPackages("dev.dnpm.etl.processor")
+            .that(doNot(have(simpleNameEndingWith("Test").or(simpleNameEndingWith("Tests")))))
+    }
+
+    @Test
+    fun noClassesInInputPackageShouldDependOnMonitoringPackage() {
+        val rule = noClasses()
+            .that()
+            .resideInAPackage("..input")
+            .should().dependOnClassesThat()
+            .resideInAnyPackage("..monitoring")
+
+        rule.check(noTestClasses)
+    }
+
+    @Test
+    fun noClassesInInputPackageShouldDependOnRepositories() {
+        val rule = noClasses()
+            .that()
+            .resideInAPackage("..input")
+            .should().dependOnClassesThat().haveSimpleNameEndingWith("Repository")
+
+        rule.check(noTestClasses)
+    }
+
+    @Test
+    fun noClassesInOutputPackageShouldDependOnRepositories() {
+        val rule = noClasses()
+            .that()
+            .resideInAPackage("..output")
+            .should().dependOnClassesThat().haveSimpleNameEndingWith("Repository")
+
+        rule.check(noTestClasses)
+    }
+
+    @Test
+    fun noClassesInWebPackageShouldDependOnRepositories() {
+        val rule = noClasses()
+            .that()
+            .resideInAPackage("..web")
+            .should().dependOnClassesThat().haveSimpleNameEndingWith("Repository")
+
+        rule.check(noTestClasses)
+    }
+
+    @Test
+    fun repositoryClassNamesShouldEndWithRepository() {
+        val rule = classes()
+            .that()
+            .areInterfaces().and().areAssignableTo(Repository::class.java)
+            .should().haveSimpleNameEndingWith("Repository")
+
+        rule.check(noTestClasses)
+    }
+
+}
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