Add test for json included in description of #1206 (#1270)

jtablesaw · Jan 3, 2025 · a923338 · a923338
1 parent c5afc31
commit a923338
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/json/src/test/java/tech/tablesaw/io/json/JsonReaderTest.java b/json/src/test/java/tech/tablesaw/io/json/JsonReaderTest.java
@@ -22,10 +22,14 @@
 
 import com.google.common.collect.ImmutableMap;
 import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+
 import org.junit.jupiter.api.Test;
 import tech.tablesaw.api.ColumnType;
 import tech.tablesaw.api.IntColumn;
 import tech.tablesaw.api.Table;
+import tech.tablesaw.io.Source;
 
 public class JsonReaderTest {
 
@@ -110,4 +114,18 @@ public void testCustomizedColumnTypeAllCustomized() throws IOException {
 
     assertArrayEquals(columnTypes, new ColumnType[] {STRING, STRING});
   }
+
+  @Test
+  void testColumnOrderIsPreserved() {
+      String json =
+          "[{\"日期\":\"1991-04-03\",\"开盘\":49,\"收盘\":49,\"最高\":49,\"最低\":49,\"成交量\":1,\"成交额\":5000,\"振幅\":0,\"涨跌幅\":22.5,\"涨跌额\":9,\"换手率\":0},"
+          + "{\"日期\":\"1991-04-04\",\"开盘\":48.76,\"收盘\":48.76,\"最高\":48.76,\"最低\":48.76,\"成交量\":3,\"成交额\":15000,\"振幅\":0,\"涨跌幅\":-0.49,\"涨跌额\":-0.24,\"换手率\":0}]\n";
+
+      List<String> header = Arrays.asList("日期", "开盘", "收盘", "最高", "最低", "成交量", "成交额", "振幅", "涨跌幅", "涨跌额", "换手率");
+
+      Table table = new JsonReader().read(Source.fromString(json));
+
+      assertEquals(header, table.columnNames());
+  }
+
 }