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Option VBASupport 1
Option Explicit
Dim passCount As Integer
Dim failCount As Integer
Dim result As String
Function doUnitTest() As String
result = verify_testCdbl()
If failCount <> 0 Or passCount = 0 Then
doUnitTest = result
Else
doUnitTest = "OK"
End If
End Function
Function verify_testCdbl() As String
passCount = 0
failCount = 0
result = "Test Results" & Chr$(10) & "============" & Chr$(10)
Dim testName As String
Dim nr1, nr2 As Double 'variables for test
testName = "Test Cdbl function"
On Error GoTo errorHandler
nr2 = 0
nr1 = CDbl(0)
TestLog_ASSERT nr1 = nr2, "the return Cdbl is: " & nr1
nr2 = 10.1234567890123
nr1 = CDbl(10.1234567890123)
TestLog_ASSERT nr1 = nr2, "the return Cdbl is: " & nr1
nr2 = 0.00005
nr1 = CDbl(0.005 * 0.01)
TestLog_ASSERT nr1 = nr2, "the return Cdbl is: " & nr1
nr2 = 20
nr1 = CDbl("20")
TestLog_ASSERT nr1 = nr2, "the return Cdbl is: " & nr1
result = result & Chr$(10) & "Tests passed: " & passCount & Chr$(10) & "Tests failed: " & failCount & Chr$(10)
verify_testCdbl = result
Exit Function
errorHandler:
TestLog_ASSERT (False), testName & ": hit error handler"
End Function
Sub TestLog_ASSERT(assertion As Boolean, Optional testId As String, Optional testComment As String)
If assertion = True Then
passCount = passCount + 1
Else
Dim testMsg As String
If Not IsMissing(testId) Then
testMsg = testMsg + " : " + testId
End If
If Not IsMissing(testComment) And Not (testComment = "") Then
testMsg = testMsg + " (" + testComment + ")"
End If
result = result & Chr$(10) & " Failed: " & testMsg
failCount = failCount + 1
End If
End Sub
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