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modPolynomRegTest.bas
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Attribute VB_Name = "modPolynomRegTest"
Option Explicit
Option Private Module
'@TestModule
'@Folder("PolynomReg.Tests")
'change value from 'LateBindTests' to '1' for late bound tests
'alternatively add
' LateBindTests = 1
'to Tools > <project name> Properties > General > Conditional Compilation Arguments
'to make it work for *all* test modules in the project
#Const LateBind = LateBindTests
#If LateBind Then
Private Assert As Object
#Else
Private Assert As Rubberduck.PermissiveAssertClass
#End If
Private vXData As Variant
Private vYData As Variant
Private vCoeffs As Variant
Private aExpected As Variant
Private aActual As Variant
Private i As Long
'@ModuleInitialize
Public Sub ModuleInitialize()
'this method runs once per module.
#If LateBind Then
Set Assert = CreateObject("Rubberduck.PermissiveAssertClass")
#Else
Set Assert = New Rubberduck.PermissiveAssertClass
#End If
End Sub
'@ModuleCleanup
Public Sub ModuleCleanup()
'this method runs once per module.
End Sub
'@TestInitialize
Public Sub TestInitialize()
'this method runs before every test in the module.
End Sub
'@TestCleanup
Public Sub TestCleanup()
'this method runs after every test in the module.
End Sub
'==============================================================================
'unit tests for `PolynomReg'
'==============================================================================
'@TestMethod("PolynomReg")
Public Sub PolynomReg_OnlyNAValues_ReturnsError()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array(CVErr(xlErrNA), CVErr(xlErrNA))
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 0)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_OnlyInvalidValues_ReturnsError()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array("s", CVErr(xlErrNum))
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 0)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_OnlyInvalidValuesWithNA_ReturnsError()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array("s", CVErr(xlErrNum))
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 0, , True)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_Order0_ReturnsValue()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array(2, 3)
aExpected = Array(2.5, CVErr(xlErrNA))
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 0)
'Assert:
For i = LBound(aActual) To UBound(aActual)
Assert.AreEqual CDbl(aExpected(i)), CDbl(aActual(i))
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_Order1_ReturnsArrayOfValues()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array(2, 3)
aExpected = Array(2, 1)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 1)
'Assert:
For i = LBound(aActual) To UBound(aActual)
Assert.AreEqual CDbl(aExpected(i)), CDbl(aActual(i))
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_Order1Transposed_ReturnsArrayOfTransposedValues()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 1)
vYData = Array(2, 3)
aExpected = Array(2, 1)
'Act:
aExpected = Application.WorksheetFunction.Transpose(aExpected)
aActual = modPolynomReg.PolynomReg(vXData, vYData, 1, True)
'Assert:
For i = LBound(aActual) To UBound(aActual)
Assert.AreEqual CDbl(aExpected(i, 1)), CDbl(aActual(i, 1))
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_Order1WithNA_ReturnsArrayOfValues()
On Error GoTo TestFail
'Arrange:
vXData = Array(0, 0.5, 1)
vYData = Array(2, CVErr(xlErrNA), 3)
aExpected = Array(2, 1)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 1, , True)
'Assert:
For i = LBound(aActual) To UBound(aActual)
Assert.AreEqual CDbl(aExpected(i)), CDbl(aActual(i))
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("PolynomReg")
Public Sub PolynomReg_Order2_ReturnsArrayOfValues()
On Error GoTo TestFail
'Arrange:
vXData = Array(-1, 1, 2)
vYData = Array(-2, 2, 1)
aExpected = Array(1, 2, -1)
'Act:
aActual = modPolynomReg.PolynomReg(vXData, vYData, 2)
'Assert:
'TODO: for whatever reason the following results 'FALSE'
' Assert.AreEqual CDbl(aExpected(0)), CDbl(aActual(0))
Assert.IsTrue Abs(aExpected(0) - aActual(0)) < 0.000000001
For i = LBound(aActual) + 1 To UBound(aActual)
Assert.AreEqual CDbl(aExpected(i)), CDbl(aActual(i))
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'==============================================================================
'unit tests for `Polynom'
'==============================================================================
'@TestMethod("Polynom")
Public Sub Polynom_OnlyNACoeff_ReturnsError()
On Error GoTo TestFail
'Arrange:
vCoeffs = CVErr(xlErrNA)
vXData = 5
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_OnlyNACoeffWithNA_ReturnsError()
On Error GoTo TestFail
'Arrange:
vCoeffs = CVErr(xlErrNA)
vXData = 5
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData, True)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_OnlyNumError_ReturnsError()
On Error GoTo TestFail
'Arrange:
vCoeffs = CVErr(xlErrNum)
vXData = 5
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Assert.AreEqual aExpected, aActual
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_1ValidValue_ReturnsValue()
On Error GoTo TestFail
'Arrange:
vCoeffs = 15
vXData = 5
aExpected = vCoeffs
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Assert.AreEqual CDbl(aExpected), CDbl(aActual)
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_2ValidValues_ReturnsValue()
On Error GoTo TestFail
'Arrange:
vCoeffs = Array(-5, 0.5)
vXData = 5
aExpected = -2.5
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Assert.AreEqual CDbl(aExpected), CDbl(aActual)
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_2ValidValuesPlusNA_ReturnsError()
On Error GoTo TestFail
'Arrange:
vCoeffs = Array(-5, 0.5, CVErr(xlErrNA))
vXData = 5
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Assert.AreEqual CDbl(aExpected), CDbl(aActual)
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_2ValidValuesPlusNAWithNA_ReturnsValue()
On Error GoTo TestFail
'Arrange:
vCoeffs = Array(-5, 0.5, CVErr(xlErrNA))
vXData = 5
aExpected = -2.5
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData, True)
'Assert:
Assert.AreEqual CDbl(aExpected), CDbl(aActual)
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_2ValidValuesPlusNAInBetweenWithNA_ReturnsError()
On Error GoTo TestFail
'Arrange:
vCoeffs = Array(-5, CVErr(xlErrNA), 0.5)
vXData = 5
aExpected = CVErr(xlErrNA)
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData, True)
'Assert:
Assert.AreEqual CDbl(aExpected), CDbl(aActual)
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub
'@TestMethod("Polynom")
Public Sub Polynom_MultipleXValues_ReturnsVector()
On Error GoTo TestFail
'Arrange:
vCoeffs = -5#
vXData = Array(1, 2)
aExpected = vCoeffs
'Act:
aActual = modPolynomReg.Polynom(vCoeffs, vXData)
'Assert:
Dim i As Long
For i = LBound(vXData) To UBound(vXData)
Assert.AreEqual aExpected, aActual(i)
Next
TestExit:
Exit Sub
TestFail:
Assert.Fail "Test raised an error: #" & Err.Number & " - " & Err.Description
End Sub