added BordComputer & BordComputerTest

added first test for readConfig & productive code

src/main/java/BordComputer.java

@@ -0,0 +1,19 @@
+import java.io.FileReader;
+import java.util.Properties;
+
+public class BordComputer {
+
+    String[] deviceNames;
+
+    public void readConfig() {
+
+        try (FileReader reader = new FileReader("Geraete.config")) {
+            Properties properties = new Properties();
+            properties.load(reader);
+            String[] values = properties.values().toArray(new String[0]);
+            deviceNames = new String[values.length];
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

src/test/java/BordComputerTest.java

@@ -0,0 +1,41 @@
+import device.radioPlayer.RadioPlayer;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.Properties;
+import java.util.stream.Stream;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.*;
+
+class BordComputerTest {
+
+    @ParameterizedTest
+    @MethodSource("readConfigOptions")
+    void readConfigTest(String testName, String testTyp, BordComputer testBc) {
+        if (testTyp.equals("count")) {
+            int count = 0;
+            try (FileReader reader = new FileReader("Geraete.config")) {
+                Properties properties = new Properties();
+                properties.load(reader);
+                count = properties.size();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            assertThat(count).describedAs(testName).isEqualTo(testBc.deviceNames.length);
+        }
+    }
+
+    static Stream<Arguments> readConfigOptions() {
+        BordComputer bc1 = new BordComputer();
+        bc1.readConfig();
+
+        return Stream.of(
+                Arguments.of("Check if file reader is getting every item in Geraete.config", "count", bc1)
+        );
+    }
+
+}