add test-library and ktlint

src/test/kotlin/de/hoennig/gittally/ApplicationContextTest.kt

@@ -0,0 +1,36 @@
+package de.hoennig.gittally
+
+import de.hoennig.gittally.commands.ConfigPrintCommand
+import de.hoennig.gittally.commands.InitCommand
+import de.hoennig.gittally.commands.ServerCommand
+import io.kotest.core.spec.style.FunSpec
+import io.kotest.matchers.shouldNotBe
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class ApplicationContextTest : FunSpec() {
+    @Autowired
+    lateinit var rootCommand: GitTallyCommand
+
+    @Autowired
+    lateinit var initCommand: InitCommand
+
+    @Autowired
+    lateinit var serverCommand: ServerCommand
+
+    @Autowired
+    lateinit var configPrintCommand: ConfigPrintCommand
+
+    init {
+        test("application context loads") {
+            rootCommand shouldNotBe null
+        }
+
+        test("all subcommands are wired") {
+            initCommand shouldNotBe null
+            serverCommand shouldNotBe null
+            configPrintCommand shouldNotBe null
+        }
+    }
+}

src/test/kotlin/de/hoennig/gittally/KotestProjectConfig.kt

@@ -0,0 +1,8 @@
+package de.hoennig.gittally
+
+import io.kotest.core.config.AbstractProjectConfig
+import io.kotest.extensions.spring.SpringExtension
+
+object KotestProjectConfig : AbstractProjectConfig() {
+    override fun extensions() = listOf(SpringExtension)
+}