DATAREDIS-971 - Polishing.

Add test. Use primitive types instead of wrappers for signed flag. Add author tag.

Original pull request: #447.

src/test/java/org/springframework/data/redis/connection/BitFieldSubCommandsUnitTests.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.data.redis.connection;
+
+import static org.assertj.core.api.Assertions.*;
+
+import org.junit.Test;
+
+import org.springframework.data.redis.connection.BitFieldSubCommands.BitFieldType;
+
+/**
+ * Unit tests for {@link BitFieldSubCommands}.
+ *
+ * @author Mark Paluch
+ */
+public class BitFieldSubCommandsUnitTests {
+
+	@Test // DATAREDIS-971
+	public void shouldCreateSignedBitFieldType() {
+
+		BitFieldType type = BitFieldType.signed(10);
+
+		assertThat(type.isSigned()).isTrue();
+		assertThat(type.getBits()).isEqualTo(10);
+	}
+
+	@Test // DATAREDIS-971
+	public void shouldCreateUnsignedBitFieldType() {
+
+		BitFieldType type = BitFieldType.unsigned(10);
+
+		assertThat(type.isSigned()).isFalse();
+		assertThat(type.getBits()).isEqualTo(10);
+	}
+}