Add tests for ImportExcel

__tests__/ImportExcelHeaderName.tests.ps1

@@ -0,0 +1,70 @@
+$xlfile = "TestDrive:\testImportExcel.xlsx"
+
+Describe "Import-Excel on a sheet with no headings" {
+    BeforeAll {
+
+        $xl = "" | export-excel $xlfile -PassThru
+
+        Set-Format -WorkSheet $xl.Sheet1 -Range A1 -Value 'A'
+        Set-Format -WorkSheet $xl.Sheet1 -Range B1 -Value 'B'
+        Set-Format -WorkSheet $xl.Sheet1 -Range C1 -Value 'C'
+
+        Set-Format -WorkSheet $xl.Sheet1 -Range A2 -Value 'D'
+        Set-Format -WorkSheet $xl.Sheet1 -Range B2 -Value 'E'
+        Set-Format -WorkSheet $xl.Sheet1 -Range C2 -Value 'F'
+
+        Close-ExcelPackage $xl
+    }
+
+    It "Import-Excel should have this shape" {
+        $actual = @(Import-Excel $xlfile)
+
+        $actualNames = $actual[0].psobject.properties.name
+
+        $actualNames.Count | Should Be 3
+        $actualNames[0] | Should BeExactly 'A'
+        $actualNames[1] | Should BeExactly 'B'
+        $actualNames[2] | Should BeExactly 'C'
+
+        $actual.Count | Should Be 1
+        $actual[0].A | Should BeExactly 'D'
+        $actual[0].B | Should BeExactly 'E'
+        $actual[0].C | Should BeExactly 'F'
+    }
+
+    It "Import-Excel -NoHeader should have this shape" {
+        $actual = @(Import-Excel $xlfile -NoHeader)
+
+        $actualNames = $actual[0].psobject.properties.name
+
+        $actualNames.Count | Should Be 3
+        $actualNames[0] | Should BeExactly 'P1'
+        $actualNames[1] | Should BeExactly 'P2'
+        $actualNames[2] | Should BeExactly 'P3'
+
+        $actual.Count | Should Be 2
+    }
+
+    It "Import-Excel -HeaderName should have this shape" {
+        $actual = @(Import-Excel $xlfile -HeaderName 'Q', 'R', 'S')
+
+        $actualNames = $actual[0].psobject.properties.name
+
+        $actualNames.Count | Should Be 3
+        $actualNames[0] | Should BeExactly 'Q'
+        $actualNames[1] | Should BeExactly 'R'
+        $actualNames[2] | Should BeExactly 'S'
+
+        $actual.Count | Should Be 2
+
+        $actual[0].Q | Should BeExactly 'A'
+        $actual[0].R | Should BeExactly 'B'
+        $actual[0].S | Should BeExactly 'C'
+
+        $actual[1].Q | Should BeExactly 'D'
+        $actual[1].R | Should BeExactly 'E'
+        $actual[1].S | Should BeExactly 'F'
+
+    }
+
+}