More Related Content
Similar to Path Testing (20)
More from Sun Technlogies
More from Sun Technlogies (10)
Path Testing
- 2. Path Testing
Path testing is a White box testing technique which ensures that every path in a program has
been executed at least once.
• It requires complete knowledge of program structure.
• It is most often used by programmers to test their own code.
Why do we need Path Testing?
Goal of the path testing is to pick enough paths to ensure that every source statement is
executed at least once and to eliminate the redundant code.
© Sun Technologies Inc. 2
- 3. • Converting the Programming Language to directed graph
• Converting Directed graph to DD-Path (Decision to Decision)
• Determine the Cyclomatic Complexity
• Determine the Basis set of Independent paths
© Sun Technologies Inc. 3
Path Testing Steps
- 4. © Sun Technologies Inc. 4
• 1 setDays = 0
• 2 availDays = 4
• 3 input = InputBox ("enter the selection 1: Paid Leave 2: LOP")
• 4 if (input=1) then
• 5 setDays = InputBox ("Enter the required number of paid leave")
• 6 if (setDays<=4 and setDays>0) Then
• 7 availDays = availDays - setDays
• 8 MsgBox("Paid Leave approved." &chr(13) &"Remaining Paid Leaves : "&availDays)
• 9 elseIf ((setDays > availDays) AND (availDays<>0)) Then
• 10 MsgBox ("Enter Valid days for leave")
• 11 elseif (setDays<=0) then
• 12 MsgBox("Enter Valid days for leave")
• 13 End If
• 14 elseif (input=2) then
• 15 setDays = InputBox ("Enter the required number of LOP ")
• 16 if (setDays>0) then
• 17 MsgBox ("LOP approved.")
• 18 else MsgBox ("Enter valid days for leave")
• 19 end if
• 20 else msgbox ("no selection")
• 21 end if
HRM Application with Directed Graph
- 6. Case1: It consist of a single node with indeg=0
Case2: It consist of a single node with outdeg=0
Case3: It consist of a single node with indeg>=2 or Outdeg>=2
Case4: It consist of a single node with indeg=1 and Outdeg=1
Case5: It is maximal chain of length>=1
© Sun Technologies Inc. 6
DD path case:
- 7. Cyclomatic complexity is a software metric (measurement), used to
indicate the complexity of a program.
V(G)=E-N+2P
E-Number of Edges
N-Number of Nodes
P-Number of connected Region
© Sun Technologies Inc. 7
Determine Cyclomatic Complexity:
- 8. No of Edges=20
No of Nodes=16
Connected Region=1
V(G)=E-N+2P
V(G)=20-16+2(1)
= 4+2
V(G) = 6
Hence the number of paths for the given program will be
© Sun Technologies Inc. 8
Determine Cyclomatic Complexity:
- 9. i. P1: First, A,B,C,D,E,H,Last
ii. P2: First, A,B,C,D,F,H,Last
iii. P3: First, A,B,C,D,G,H,Last
iv. P4: First,A,B,I,J,K,M,Last
v. P5: First,A,B,I,J,L,M,Last
vi. P6: First,A,B,N,Last
© Sun Technologies Inc. 9
Paths covered in the program