Add unit tests for Set-GiteaConfiguration, Get-GiteaConfiguration, and Get-GiteaFileContent functions

PS-GiteaUtilities/Tests/Get-GiteaChildItem.Tests.ps1

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+# Get-GiteaChildItem.Tests.ps1
+
+# Import the module under test
+$modulePath = Join-Path -Path $PSScriptRoot -ChildPath '..\PS-GiteaUtilities.psm1'
+Import-Module -Name $modulePath -Force
+
+Describe 'Get-GiteaChildItem' {
+
+    BeforeEach {
+        # Mock config load
+        Mock -CommandName Get-GiteaConfiguration -ModuleName PS-GiteaUtilities -MockWith {
+            return @{
+                giteaURL = 'https://mock.gitea.com'
+                defaultOwner = 'mockuser'
+                defaultRepo = 'mockrepo'
+                defaultBranch = 'main'
+                token = 'mocktoken'
+            }
+        }
+
+        # Mock LFS config
+        Mock -CommandName Get-GiteaLFSConfiguration -ModuleName PS-GiteaUtilities -MockWith {
+            return @(".lfs")
+        }
+
+        # Mock web call to list files
+        Mock -CommandName Invoke-RestMethod -ModuleName PS-GiteaUtilities -MockWith {
+            return @(
+                @{
+                    name = "file1.txt"
+                    path = "file1.txt"
+                    type = "file"
+                    size = 123
+                    sha = "abc123"
+                    download_url = "https://mock.gitea.com/file1.txt"
+                },
+                @{
+                    name = "subdir"
+                    path = "subdir"
+                    type = "dir"
+                    size = 0
+                    sha = $null
+                    download_url = $null
+                }
+            )
+        }
+
+        Mock -CommandName Write-Error -ModuleName PS-GiteaUtilities -MockWith { }
+    }
+
+    Context 'When listing basic items' {
+        It 'Should return files and directories correctly' {
+            $result = Get-GiteaChildItem -repoOwner 'mockuser' -repoName 'mockrepo' -Path '' -token 'mocktoken'
+
+            $result | Should -Not -BeNullOrEmpty
+            $result.Count | Should -BeGreaterThan 0
+
+            $file = $result | Where-Object { $_.type -eq 'file' }
+            $dir  = $result | Where-Object { $_.type -eq 'dir' }
+
+            $file.name | Should -Be 'file1.txt'
+            $dir.name  | Should -Be 'subdir'
+        }
+    }
+
+    Context 'When filtering only files' {
+        It 'Should return only files when -File is used' {
+            $result = Get-GiteaChildItem -repoOwner 'mockuser' -repoName 'mockrepo' -Path '' -token 'mocktoken' -File
+
+            $result | Should -Not -BeNullOrEmpty
+            $result.Count | Should -Be 1
+            $result[0].type | Should -Be 'file'
+        }
+    }
+
+    Context 'When recursing into directories' {
+        BeforeEach {
+            # Mock recursion call
+            Mock -CommandName Invoke-RestMethod -ModuleName PS-GiteaUtilities -MockWith {
+                param($Uri)
+
+                if ($Uri -like "*subdir*") {
+                    return @(
+                        @{
+                            name = "nestedfile.txt"
+                            path = "subdir/nestedfile.txt"
+                            type = "file"
+                            size = 456
+                            sha = "def456"
+                            download_url = "https://mock.gitea.com/subdir/nestedfile.txt"
+                        }
+                    )
+                } else {
+                    return @(
+                        @{
+                            name = "file1.txt"
+                            path = "file1.txt"
+                            type = "file"
+                            size = 123
+                            sha = "abc123"
+                            download_url = "https://mock.gitea.com/file1.txt"
+                        },
+                        @{
+                            name = "subdir"
+                            path = "subdir"
+                            type = "dir"
+                            size = 0
+                            sha = $null
+                            download_url = $null
+                        }
+                    )
+                }
+            }
+        }
+
+        It 'Should retrieve nested files when -Recurse is used' {
+            $result = Get-GiteaChildItem -repoOwner 'mockuser' -repoName 'mockrepo' -Path '' -token 'mocktoken' -Recurse
+
+            $nested = $result | Where-Object { $_.Path -eq 'subdir/nestedfile.txt' }
+
+            $nested | Should -Not -BeNullOrEmpty
+            $nested.size | Should -Be 456
+        }
+    }
+
+    Context 'When recursion depth limit is enforced' {
+        BeforeEach {
+            # Same recursion mock as above
+            Mock -CommandName Invoke-RestMethod -ModuleName PS-GiteaUtilities -MockWith {
+                param($Uri)
+
+                if ($Uri -like "*subdir*") {
+                    return @(
+                        @{
+                            name = "nestedfile.txt"
+                            path = "subdir/nestedfile.txt"
+                            type = "file"
+                            size = 456
+                            sha = "def456"
+                            download_url = "https://mock.gitea.com/subdir/nestedfile.txt"
+                        }
+                    )
+                } else {
+                    return @(
+                        @{
+                            name = "file1.txt"
+                            path = "file1.txt"
+                            type = "file"
+                            size = 123
+                            sha = "abc123"
+                            download_url = "https://mock.gitea.com/file1.txt"
+                        },
+                        @{
+                            name = "subdir"
+                            path = "subdir"
+                            type = "dir"
+                            size = 0
+                            sha = $null
+                            download_url = $null
+                        }
+                    )
+                }
+            }
+        }
+
+        It 'Should not recurse deeper than depth limit' {
+            $result = Get-GiteaChildItem -repoOwner 'mockuser' -repoName 'mockrepo' -Path '' -token 'mocktoken' -Recurse -Depth 0
+
+            $nested = $result | Where-Object { $_.Path -eq 'subdir/nestedfile.txt' }
+            $nested | Should -BeNullOrEmpty
+        }
+    }
+}