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Implemented DataNodePath class so DataNodes can be searched by path

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Ziver Koc 2023-03-27 01:32:40 +02:00
parent 404cfa00ae
commit 942e26bb53
2 changed files with 257 additions and 0 deletions
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test/zutil/parser/DataNodePathTest.java Normal file
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package zutil.parser;
import org.junit.Test;
import zutil.parser.json.JSONParser;
import zutil.parser.json.JSONWriter;
import static org.junit.Assert.*;
public class DataNodePathTest {
@Test
public void invalidPath() {
assertThrows(IllegalArgumentException.class, () -> DataNodePath.search("", new DataNode(DataNode.DataType.Map)));
assertThrows(IllegalArgumentException.class, () -> DataNodePath.search("aa", new DataNode(DataNode.DataType.Map)));
assertThrows(IllegalArgumentException.class, () -> DataNodePath.search("11", new DataNode(DataNode.DataType.Map)));
}
@Test
public void mapPath() {
String json = "{child1: 'test', child2: {child3: 'banana'}}";
DataNode rootNode = JSONParser.read(json);
assertEquals("test", DataNodePath.search("$.child1", rootNode).getString());
assertEquals("banana", DataNodePath.search("$.child2.child3", rootNode).getString());
assertEquals("test", DataNodePath.search("$['child1']", rootNode).getString());
assertEquals("banana", DataNodePath.search("$['child2']['child3']", rootNode).getString());
}
@Test
public void arrayPath() {
String json = "{child1: ['test', {child2: 'banana'}]}";
DataNode rootNode = JSONParser.read(json);
assertEquals("test", DataNodePath.search("$.child1[0]", rootNode).getString());
assertEquals("banana", DataNodePath.search("$.child1[1].child2", rootNode).getString());
}
@Test
public void starPath() {
String json = "{}";
DataNode rootNode = JSONParser.read(json);
assertNull(DataNodePath.search("$.child1.*", rootNode));
assertNull(DataNodePath.search("$.child1[*]", rootNode));
json = "{child1: []}";
rootNode = JSONParser.read(json);
assertEquals("[]", JSONWriter.toString(DataNodePath.search("$.child1.*", rootNode)));
assertEquals("[]", JSONWriter.toString(DataNodePath.search("$.child1[*]", rootNode)));
json = "{child1: ['test1', 'test2']}";
rootNode = JSONParser.read(json);
assertEquals("[\"test1\", \"test2\"]", JSONWriter.toString(DataNodePath.search("$.child1.*", rootNode)));
assertEquals("[\"test1\", \"test2\"]", JSONWriter.toString(DataNodePath.search("$.child1[*]", rootNode)));
}
}