kotlin: adds approval test setup

expensereport-kotlin/Makefile

@@ -1,8 +1,8 @@
 .PHONY: all
 all: build
 
-.PHONY: build clean pitest
-build clean pitest:
+.PHONY: build clean test pitest
+build clean test pitest:
 	./gradlew $@
 
 -include .User.mk

expensereport-kotlin/build.gradle.kts

@@ -44,6 +44,7 @@ dependencyManagement {
         }
         dependency("org.pitest:pitest-junit5-plugin:0.15")
         dependency("org.pitest:pitest-command-line:1.8.0")
+        dependency("com.approvaltests:approvaltests:15.6.0")
     }
 }
 
@@ -63,6 +64,7 @@ dependencies {
     testImplementation("org.junit.platform:junit-platform-suite-api")
     testImplementation("org.junit.platform:junit-platform-suite-commons")
     testImplementation("org.junit.platform:junit-platform-suite-engine")
+    testImplementation("com.approvaltests:approvaltests")
 }
 
 tasks.withType<KotlinCompile> {

expensereport-kotlin/src/test/kotlin/com/nelkinda/training/ExpenseReportApprovalTest.kt

@@ -0,0 +1,23 @@
+package com.nelkinda.training
+
+import org.approvaltests.ApprovalUtilities
+import org.approvaltests.Approvals
+import org.junit.jupiter.api.Test
+
+class ExpenseReportApprovalTest {
+
+    @Test
+    fun test() {
+        val output = ApprovalUtilities().writeSystemOutToStringBuffer()
+
+        val expense = Expense()
+        expense.type = ExpenseType.BREAKFAST
+        expense.amount = 500
+
+        ExpenseReport().printReport(listOf(expense))
+
+        // will fail, because of timestamp in expense report
+        Approvals.verify(output)
+    }
+}
+

expensereport-kotlin/src/test/kotlin/com/nelkinda/training/ExpenseReportApprovalTest.test.approved.txt

@@ -0,0 +1,4 @@
+Expenses Fri Jun 03 12:02:48 CEST 2022
+Breakfast	500	 
+Meal expenses: 500
+Total expenses: 500