Add PropertiesJavaFormatConfigTests

Author: philwebb

spring-javaformat/spring-javaformat-config/src/test/java/io/spring/javaformat/config/PropertiesJavaFormatConfigTests.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017-2020 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 io.spring.javaformat.config;
+
+import java.util.Properties;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link PropertiesJavaFormatConfig}.
+ *
+ * @author Phillip Webb
+ */
+class PropertiesJavaFormatConfigTests {
+
+	@Test
+	void getJavaBaselineWhenNoPropertyReturnsJava11() {
+		Properties properties = new Properties();
+		PropertiesJavaFormatConfig config = new PropertiesJavaFormatConfig(properties);
+		assertThat(config.getJavaBaseline()).isEqualTo(JavaBaseline.V11);
+	}
+
+	@Test
+	void getJavaBaselineWhenPropertyReturnsPropertyValue() {
+		Properties properties = new Properties();
+		properties.setProperty("java-baseline", "8");
+		PropertiesJavaFormatConfig config = new PropertiesJavaFormatConfig(properties);
+		assertThat(config.getJavaBaseline()).isEqualTo(JavaBaseline.V8);
+	}
+
+	@Test
+	void getIndentationStyleWhenNoPropertyReturnsJava11() {
+		Properties properties = new Properties();
+		PropertiesJavaFormatConfig config = new PropertiesJavaFormatConfig(properties);
+		assertThat(config.getIndentationStyle()).isEqualTo(IndentationStyle.TABS);
+	}
+
+	@Test
+	void getIndentationStyleWhenPropertyReturnsPropertyValue() {
+		Properties properties = new Properties();
+		properties.setProperty("indentation-style", "spaces");
+		PropertiesJavaFormatConfig config = new PropertiesJavaFormatConfig(properties);
+		assertThat(config.getIndentationStyle()).isEqualTo(IndentationStyle.SPACES);
+	}
+
+}