Add unit tests for Get-ExcelFileSummary #1014

__tests__/Get-ExcelFileSummary.Tests.ps1

@@ -0,0 +1,43 @@
+#Requires -Modules Pester
+[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseDeclaredVarsMoreThanAssignments', '', Justification = 'False Positives')]
+[Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidAssignmentToAutomaticVariable', '', Justification = 'Only executes on versions without the automatic variable')]
+param()
+
+if (-not (Get-command Import-Excel -ErrorAction SilentlyContinue)) {
+    Import-Module $PSScriptRoot\..\ImportExcel.psd1
+}
+
+Describe 'All tests for Get-ExcelFileSummary' -Tag "Get-ExcelFileSummary" {
+    Context "Test Get-ExcelFileSummary" {
+        It "Tests summary on TestData2.xlsx" {
+            $actual = Get-ExcelFileSummary "$PSScriptRoot\ImportExcelTests\TestData1.xlsx"
+
+            $actual.ExcelFile | Should -BeExactly 'TestData1.xlsx'
+            $actual.WorksheetName | Should -BeExactly 'Sheet1'
+            $actual.Rows | Should -Be 3
+            $actual.Columns | Should -Be 2
+            $actual.Address | Should -BeExactly 'A1:B3'
+            $actual.Path | Should -BeExactly "$PSScriptRoot\ImportExcelTests"
+        }
+
+        It "Tests summary on xlsx with multiple sheets" {
+
+            $actual = Get-ExcelFileSummary "$PSScriptRoot\ImportExcelTests\MultipleSheets.xlsx"
+
+            $actual[0].ExcelFile | Should -BeExactly 'MultipleSheets.xlsx'
+            $actual[0].WorksheetName | Should -BeExactly 'Sheet1'
+            $actual[0].Rows | Should -Be 1
+            $actual[0].Columns | Should -Be 4
+            $actual[0].Address | Should -BeExactly 'A1:D1'
+            $actual[0].Path | Should -BeExactly "$PSScriptRoot\ImportExcelTests"
+
+            $actual[1].ExcelFile | Should -BeExactly 'MultipleSheets.xlsx'
+            $actual[1].WorksheetName | Should -BeExactly 'Sheet2'
+            $actual[1].Rows | Should -Be 2
+            $actual[1].Columns | Should -Be 2
+            $actual[1].Address | Should -BeExactly 'A1:B2'
+            $actual[1].Path | Should -BeExactly "$PSScriptRoot\ImportExcelTests"
+        }
+
+    }
+}