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TEST. DATA. Data-based Testing. Data-based Testing Data-based Test Cases Environment of a Software Component Data Flow Analysis Test Data Sets Defining the Input Data Defining the Control Data Random Data Generation Test Data Derivation Progression & Degression Data Generation
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TEST DATA Data-based Testing Data-based Testing Data-based Test Cases Environment of a Software Component Data Flow Analysis Test Data Sets Defining the Input Data Defining the Control Data Random Data Generation Test Data Derivation Progression & Degression Data Generation Boundary Analysis Building Equivalence Classes Inputs/Functions/Outputs Sample Equivalence Classes Sample Boundary Values Cause & Effect Analysis Cause & Effect Graph Sample Cause & Effect Graph Data Usage Types Input/Output Specification Validating System Databases Validating System Outputs Generation of an XML Interface Validation of the XML Interface 1 13 2 14 3 15 4 16 5 17 6 18 7 19 8 20 9 21 10 22 11 23 12 24
TEST DATA-1 Data-based Testing Programs Data Structures Testing Programs against their Data Structures
TEST DATA-2 Data-based Test Cases I n p u t s O u t p u t s Message_In Message_Out Field-E1 Field-E2 Field-E3 Field-AE Field-A2 Field-A3 Params Rec-B Rec-B T e s t O b j e c t Field-B1 Field-B2 Field-B3 Field-B2 Field-B4 Field-B5 Tab-1 List-1 Instance-1 Instance-2 Instance-3 Field-1 Field-2 Field-3 Params 1. Test 1. Test 2. Test 2. Test 3. Test 3. Test Input States Output-States
TEST DATA-3 Environment of a Software Component Input-params Output-params IncomingMessages (XML/IDL/etc.) OutgoingMessages (XML/IDL/etc.) Test Object Global data Import Files Global data Export Files ReturnCodesDB-Retrieves Module CallsDB-Stores Pre-Arguments Post-Results HorizontalData Flow In Out O U T P U T S I N P U T S Post-Results Pre-Arguments Vertical Data Flow
TEST DATA-4 Data Flow Analysis D P P P D D P D D D 3 1 1 2 2 4 6 4 5 3 b b a b b b a a a a 5 5 1 1 3 2 3 2 4 4 a-Flow b-Flow
TEST DATA-5 Defining Test Data Sets X S S Y S X S S S S Y X S S Y S 4 4 2 3 4 2 1 I I 2 I I 1 I 3 I S S 12 34 : = Set of actual Results (Outputs): = Set of specified Results (Outputs): = Set of possible Arguments (Inputs): = Set of defined Arguments (Inputs) X = F (Y) when X then Y F is correct when ^ F is complete when ^ F is consistent when ^
TEST DATA-6 Defining Input Data + + + + + + + + + All Data + + + + + + + + + + + + + + + + + + + Input Data = Arguments | Sending Variables + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + X = Y + 4; ADD Y TO X. X = SUB (Y); CALL SUB USING Y, X
TEST DATA-7 Defining Control Data + + + + All Data + + + Input Data + + + + + + + + + + + + + + + + + + + + + + + + + + + Control Data = Predicates + + DO WHILE ( I < N ); + + + + + + + + + + + + + + + + IF I > 0 THEN
TEST DATA-8 Random Data Generation Binary-Fieldsr = -32627, -1, 0, 1, 32627 Packed-Fields = -1000, 0, 1000, 1000000 Hexadecimal-Fields = 40, 00, A2, FF Character-Fields = ' ', 'XXXXX' Bit-Fields = 0, 1 Data Storage Data Type Definition Table Random- Data Generator BeforeImage
TEST DATA-9 Test Data Derivation Approaches X Y (1-n) (1-n) X = F (Y) Results Arguments Input Value DomainsValid Input ValuesInvalid Input Values Output Value DomainsValid Output ValuesInvalid Output Values Function Equivalence Classes Representative value set Valid value set Invalid value setBoundary Analysis Numeric Value Ranges Upper & Lower BoundsCause & EffectAnalysis Events/ Starting States Results/State Transitions
TEST DATA-10 Progression & Degression Data Generation Increasing & Decreasing Intervals 1, 2, 3, 4, 5, 6, 7, 8, 9, etc.100, 200, 300, 400, 500, 600, 700, 800, 900, etc.10.5, 15.5, 20.5, 25.5, 30.5 35.5, etc.0, -1, -2, -3, -4, -5, -6, -7, etc.0, -100, -200, -300, -400, -500, -600, -700. etc.50.3, 40.3, 30.3, 20.3, 10.3, 0.3, -0.7, -10.7, etc.
TEST DATA-11 Boundary Analysis Lower Boundary -100 -32.000 0 V alueRange V alueRange V alueRange +1.000 +50 +64.000 Upper Boundary
TEST DATA-12 Building Equivalence Classes I N P U T D O M A I N 100 : 150 150 : 200 100 190 160 110 120 130 Sub-SubDomain < 100 170 200 > 200 140 180 190 First SubDomain 150 Second SubDomain Lower Bound = 100 Upper Bound = 200 Representative numeric values for Testing
TEST DATA-13 Inputs/Functions/Outputs Inputs Functions Outputs Transaction Stock_Entry OrderPosition TransactionType OrderNumber ArticleNumber ArticleNumber StockinAmount OrderAmountArtikel Article ArticlelNumber ArticlesonStock Articlename ArticleStatus ArticlePrice ArticlesonStock ArticleStatusTransaction Stock_Exit OrderPosition TransactionType OrderNumber ArticleNumber Article StockoutAmount ArticleNumberArticle ArticlesonStock ArticleNumber Protocol ArticleName ArticleNumber ArticlePrice OrderAmount ArticlesonStock ArticlesonStockOrderPosition OrderNumber ArticleNumber StockAmount
TEST DATA-14 Sample Equivalence Classes Input Parameter Valid Values Invalid Values Transaction TransType ‘IN', ‘OUT‘ NOT E SET (‘IN', ‘OUT') ArticleNumber 101, 150, 177, 182 < 100 OR > 200 StockOutAmount 1, 99, 50 < 1 OR > 99 StockInAmount 1, 99, 500 < 1 OR > 500 Article ArticleNumber E SET ( ArticleNumbers) NOT E SET (ArticleNumbers) ArticleName 'BOOK', ‘DISC', ‘CD' 'NAILS', 'SCREWS', ' ', ArticlePrice 5.00, 48.80, 99.99 < 5.00 OR > 99.99 ArticlesonStock 1, 99, 500 < 0 OR > 500 OrderId ‘Y', 'N' NOT E SET (‘Y', 'N')
TEST DATA-15 Sample Boundary Values Input Parameters Lower Boundary Upper Boundary Transaction ArticleNumber 99, 100, 101 199, 200, 201 StockinAmount 0, 1, 2 98, 99, 100 StockoutAmount 0, 1, 2 499, 500, 501 Article ArticleNumber 99, 100, 101 199, 200, 201 ArticlePrice 4.99, 5.00, 5.01 99.98, 99.99, 100.00 ArticlesonStock -1, 0, 1 499, 500, 501
TEST DATA-16 Cause & Effect Analysis Logical Relations between Input & Outputs x = y = a b a b IF A THEN B IF NOT A THEN B x = a a y = ! c c x = b b IF (A ! B) THEN C IF NOT (A ! B) THEN C x = a a y = & c c z = b b IF (A & B) THEN C IF NOT (A & B) THEN C
TEST DATA-17 Cause & Effect Graphs 1 2 OUTPUT S T A T E S 3 31 INPUTST A T E S 4 21 32 5 X 6 33 7 22 34 8 9
TEST DATA-18 Sample Cause & Effect Graph Order.CustomerNr E SET (CustomerNrs) Customer is valid Order rejected Orderaccepted OrderPositionrejected Customer is credible Cust_Credit > 2 Article on Stock Order.ArticleNr E SET (ArticleNrs) Fulfill Order ArticlesonStock - Order.Amount Article Amount on Stock is sufficient to fulfill order Order.Amount < ArticlesonStock
TEST DATA-19 Data Usage Types Predicates F u n c t i o n Inputs Outputs Output Driven: when test cases are derived from predicted Outputs Input Driven: when test cases are derived from possible Inputs
TEST DATA-20 Input/Output Specification Inputs Processing Outputs Transaction Update Stock-Delivered Stock Inventory Stock Inventory Stock-Ordered Order-SW Stock-Inventory Stock-NR Order-SW = 1If Stock-NR Valid & Stock-Ordered < = Stock-Inventory Order-SW = 0If Stock-NR Not Valid | Stock-Ordered > Stock-Inventory
DATA-21 Validation of Database Contents TEST GUN- System Test GUNSQLDB SQL- Query CSV- Files Fields which map to the Fields of the old Database GU- System old TabComp Comparison protocol VSAM Files Missing Records,Matching Records,Non-matching Fields FileTran CSV- Files
DATA-22 Validation of System Outputs TEST GU- System old Reports REPTOXML XML- Files XMLComp Comparison protocol Missing Objects,Matching Objects,Non-matching Results GU- System Test XML- Files
TEST DATA-23 Generation of an XML Interface <?xml version = "1.0" encoding = "ISO-8859-1"?> <!DOCTYPE "xm059i" SYSTEM "xm059i.xsd"> <xm059i> <XM059-PARAMS> <P1> <P1-TT>12</P1-TT> <P1-MM>10</P1-MM> <P1-CE>19</P1-CE> <P1-JJ>77</P1-JJ> </P1> <P2> <LANG-CODE>1</LANG-CODE> <-- 1 = Deutsch, 2 = Franzoezisch, 3 = Italienisch --> </P2> <P3> <DIRECTION>1</DIRECTION> <-- 1 = Links, 2 = rechts --> </P3> <P4> <DAY-NAME>XXXXXXXXXX</DAY-NAME> </P4> <RETURN-CODE>00</RETURN-CODE> </XM059-PARAMS> </xm059i> ____________________________________________________________________________________ <?xml version = "1.0" encoding = "ISO-8859-1"?> <!--DOCTYPE XM059O SYSTEM "XM059O.xsd"--> <XM059O> <XM059-PARAMS> <RETURN-CODE>00</RETURN-CODE> <P1> <P1-TT>12</P1-TT> <P1-MM>10</P1-MM> <P1-CE>19</P1-CE> <P1-JJ>77</P1-JJ> </P1> <P2> <LANG-CODE>1</LANG-CODE> </P2> <P3> <DIRECTION>2</DIRECTION> </P3> <P4> <DAY-NAME>MERCOLEDI</DAY-NAME> </P4> </XM059-PARAMS> </XM059O>
TEST DATA-24 Validation of the XML Interface +-----------------------------------------------------------------------+ | WSDL Response Validation Report | | Object: Kalender Date: 19.06.04 | | Type : XML System: TEST | | Key Fields of Response (ist,soll) | +-------------------------------------+---------------------------------+ | MsgKey:DayofWeek = 12101977 | | | Ist : DayofWeek | Mercolodi | | SOll: DayofWeek | Mittwoch | +-------------------------------------+---------------------------------+ | MsgKey:DayofWeek = 12101977 | | | Ist : Language | 2 | | SOll: Language | 1 | +-------------------------------------+---------------------------------+