[HUDI-1254] TypedProperties can not get values by initializing an existing properties (#2059)

hudi-common/src/test/java/org/apache/hudi/common/properties/TestTypedProperties.java

@@ -0,0 +1,84 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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
+ *
+ *      http://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.apache.hudi.common.properties;
+
+import org.apache.hudi.common.config.TypedProperties;
+import org.junit.jupiter.api.Test;
+
+import java.util.Properties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class TestTypedProperties {
+  @Test
+  public void testGetString() {
+    Properties properties = new Properties();
+    properties.put("key1", "value1");
+
+    TypedProperties typedProperties = new TypedProperties(properties);
+    assertEquals("value1", typedProperties.getString("key1"));
+    assertEquals("value1", typedProperties.getString("key1", "default"));
+    assertEquals("default", typedProperties.getString("key2", "default"));
+  }
+
+  @Test
+  public void testGetInteger() {
+    Properties properties = new Properties();
+    properties.put("key1", "123");
+
+    TypedProperties typedProperties = new TypedProperties(properties);
+    assertEquals(123, typedProperties.getInteger("key1"));
+    assertEquals(123, typedProperties.getInteger("key1", 456));
+    assertEquals(456, typedProperties.getInteger("key2", 456));
+
+  }
+
+  @Test
+  public void testGetDouble() {
+    Properties properties = new Properties();
+    properties.put("key1", "123.4");
+
+    TypedProperties typedProperties = new TypedProperties(properties);
+    assertEquals(123.4, typedProperties.getDouble("key1"));
+    assertEquals(123.4, typedProperties.getDouble("key1", 0.001D));
+    assertEquals(0.001D, typedProperties.getDouble("key2", 0.001D));
+  }
+
+  @Test
+  public void testGetLong() {
+    Properties properties = new Properties();
+    properties.put("key1", "1354354354");
+
+    TypedProperties typedProperties = new TypedProperties(properties);
+    assertEquals(1354354354, typedProperties.getLong("key1"));
+    assertEquals(1354354354, typedProperties.getLong("key1", 8578494434L));
+    assertEquals(8578494434L, typedProperties.getLong("key2", 8578494434L));
+  }
+
+  @Test
+  public void testGetBoolean() {
+    Properties properties = new Properties();
+    properties.put("key1", "true");
+
+    TypedProperties typedProperties = new TypedProperties(properties);
+    assertEquals(true, typedProperties.getBoolean("key1"));
+    assertEquals(true, typedProperties.getBoolean("key1", false));
+    assertEquals(false, typedProperties.getBoolean("key2", false));
+  }
+}