### Question:
TableMeta { public ColumnMeta getColumnMeta(String colName) { return allColumns.get(colName); }  String getTableName(); void setTableName(String tableName); ColumnMeta getColumnMeta(String colName); Map<String, ColumnMeta> getAllColumns(); Map<String, IndexMeta> getAllIndexes(); ColumnMeta getAutoIncreaseColumn(); Map<String, ColumnMeta> getPrimaryKeyMap(); @SuppressWarnings("serial") List<String> getPrimaryKeyOnlyName(); List<String> getEscapePkNameList(String dbType); boolean containsPK(List<String> cols); @Override boolean equals(Object o); @Override int hashCode();  }### Answer:
@Test public void testGetColumnMeta() { TableMeta tableMeta = new TableMeta(); tableMeta.getAllColumns().put("id", new ColumnMeta()); tableMeta.getAllColumns().put("name", new ColumnMeta()); Assertions.assertNull(tableMeta.getColumnMeta("`id`")); Assertions.assertNotNull(tableMeta.getColumnMeta("name")); }