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+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/********************************************************************
+ * COPYRIGHT: 
+ * Copyright (c) 2002-2006, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ ********************************************************************/
+
+/* Created by weiv 05/09/2002 */
+
+/* Base class for data driven tests */
+
+#ifndef U_TESTFW_TESTDATA
+#define U_TESTFW_TESTDATA
+
+#include "unicode/tstdtmod.h"
+#include "unicode/datamap.h"
+
+
+ /** This is the class that abstracts one of the tests in a data file 
+  *  It is usually instantiated using TestDataModule::CreateTestData method 
+  *  This class provides two important methods: nextSettings and nextCase 
+  *  Usually, one walks through all settings and executes all cases for 
+  *  each setting. Each call to nextSettings resets the cases iterator.
+  *  Individual test cases have to have the same number of fields as the
+  *  number of entries in headers. Default headers can be specified in 
+  *  the TestDataModule info section. The default headers will be overridden
+  *  by per-test headers. 
+  *  Example:                                             
+  *  DataMap *settings = nullptr;
+  *  DataMap *cases = nullptr;
+  *  while(nextSettings(settings, status)) {              
+  *    // set settings for the subtest                    
+  *    while(nextCase(cases, status) {                    
+  *      // process testcase                              
+  *    }                                                  
+  *   }                                                   
+  */
+
+class T_CTEST_EXPORT_API TestData {
+  const char* name;
+
+protected:
+  DataMap *fInfo;
+  DataMap *fCurrSettings;
+  DataMap *fCurrCase;
+  int32_t fSettingsSize;
+  int32_t fCasesSize;
+  int32_t fCurrentSettings;
+  int32_t fCurrentCase;
+  /** constructor - don't use */
+  TestData(const char* name);
+
+public:
+  virtual ~TestData();
+
+  const char* getName() const;
+
+  /** Get a pointer to an object owned DataMap that contains more information on this
+   *  TestData object.
+   *  Usual fields is "Description".                                   
+   *  @param info pass in a const DataMap pointer. If no info, it will be set to nullptr
+   */
+  virtual UBool getInfo(const DataMap *& info, UErrorCode &status) const = 0;
+
+  /** Gets the next set of settings for the test. Resets the cases iterator. 
+   *  DataMap is owned by the object and should not be deleted. 
+   *  @param settings a DataMap pointer provided by the user. Will be nullptr if
+   *                  no more settings are available.
+   *  @param status for reporting unexpected errors.
+   *  @return A boolean, true if there are settings, false if there is no more 
+   *          settings. 
+   */
+  virtual UBool nextSettings(const DataMap *& settings, UErrorCode &status) = 0;
+
+  /** Gets the next test case. 
+   *  DataMap is owned by the object and should not be deleted. 
+   *  @param data a DataMap pointer provided by the user. Will be nullptr if 
+   *                  no more cases are available.
+   *  @param status for reporting unexpected errors.
+   *  @return A boolean, true if there are cases, false if there is no more 
+   *          cases. 
+   */
+  virtual UBool nextCase(const DataMap *& data, UErrorCode &status) = 0;
+};
+
+// implementation of TestData that uses resource bundles
+
+class T_CTEST_EXPORT_API RBTestData : public TestData {
+  UResourceBundle *fData;
+  UResourceBundle *fHeaders;
+  UResourceBundle *fSettings;
+  UResourceBundle *fCases;
+
+public:
+  RBTestData(const char* name);
+  RBTestData(UResourceBundle *data, UResourceBundle *headers, UErrorCode& status);
+private:
+//  RBTestData() {};
+//  RBTestData(const RBTestData& original) {};
+  RBTestData& operator=(const RBTestData& /*original*/);
+
+public:
+  virtual ~RBTestData();
+
+  virtual UBool getInfo(const DataMap *& info, UErrorCode &status) const override;
+
+  virtual UBool nextSettings(const DataMap *& settings, UErrorCode &status) override;
+  virtual UBool nextCase(const DataMap *& nextCase, UErrorCode &status) override;
+};
+
+#endif
+