covering Record.print with additional tests

spi/src/test/java/hosh/spi/RecordsTest.java

@@ -26,6 +26,10 @@
 import nl.jqno.equalsverifier.EqualsVerifier;
 import org.junit.jupiter.api.Test;
 
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.Locale;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 class RecordsTest {
@@ -166,4 +170,28 @@ void prependAndAppend() {
 		assertThat(a.prepend(Keys.TEXT, text)).isEqualTo(a.append(Keys.TEXT, text));
 		assertThat(a.append(Keys.TEXT, text)).isEqualTo(a.prepend(Keys.TEXT, text));
 	}
+
+	@Test
+	void print() {
+		StringWriter stringWriter = new StringWriter();
+		PrintWriter printWriter = new PrintWriter(stringWriter, true);
+
+		// no keys
+		Record empty = Records.empty();
+		empty.print(printWriter, Locale.getDefault());
+		assertThat(stringWriter.toString()).isEmpty();
+
+		// one key
+		stringWriter.getBuffer().setLength(0);
+		Record single = empty.append(Keys.NAME, Values.ofText("name1"));
+		single.print(printWriter, Locale.getDefault());
+		assertThat(stringWriter.toString()).isEqualTo("name1");
+
+		// two keys
+		stringWriter.getBuffer().setLength(0);
+		Record multi = single.append(Keys.NAME, Values.ofText("name2"));
+		multi.print(printWriter, Locale.getDefault());
+		assertThat(stringWriter.toString()).isEqualTo("name1 name2");
+	}
+
 }