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hve-core/scripts/tests/dev-tools

scripts/tests/dev-tools/Generate-PrReference.Tests.ps1

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1#Requires -Modules Pester
2
3BeforeAll {
4 . $PSScriptRoot/../../dev-tools/Generate-PrReference.ps1
5}
6
7Describe 'Test-GitAvailability' {
8 It 'Does not throw when git is available' {
9 # This test assumes git is installed in the test environment
10 { Test-GitAvailability } | Should -Not -Throw
11 }
12
13 It 'Should throw when git is not available' {
14 Mock Get-Command { $null } -ParameterFilter { $Name -eq 'git' }
15 { Test-GitAvailability } | Should -Throw '*Git is required*'
16 }
17}
18
19Describe 'Get-RepositoryRoot' {
20 It 'Returns a valid directory path' {
21 $result = Get-RepositoryRoot
22 $result | Should -Not -BeNullOrEmpty
23 Test-Path -Path $result -PathType Container | Should -BeTrue
24 }
25
26 It 'Returns path containing .git directory' {
27 $result = Get-RepositoryRoot
28 Test-Path -Path (Join-Path $result '.git') | Should -BeTrue
29 }
30
31 It 'Should throw when repository root cannot be determined' {
32 Mock git { $global:LASTEXITCODE = 0; return '' }
33 { Get-RepositoryRoot } | Should -Throw '*Unable to determine repository root*'
34 }
35}
36
37Describe 'New-PrDirectory' {
38 BeforeAll {
39 $script:tempRepo = Join-Path ([System.IO.Path]::GetTempPath()) ([System.Guid]::NewGuid().ToString())
40 New-Item -ItemType Directory -Path $script:tempRepo -Force | Out-Null
41 }
42
43 AfterAll {
44 Remove-Item -Path $script:tempRepo -Recurse -Force -ErrorAction SilentlyContinue
45 }
46
47 It 'Creates .copilot-tracking/pr directory' {
48 $result = New-PrDirectory -RepoRoot $script:tempRepo
49 $result | Should -Not -BeNullOrEmpty
50 Test-Path -Path $result -PathType Container | Should -BeTrue
51 $result | Should -Match '\.copilot-tracking[\\/]pr$'
52 }
53
54 It 'Returns existing directory without error' {
55 $firstCall = New-PrDirectory -RepoRoot $script:tempRepo
56 $secondCall = New-PrDirectory -RepoRoot $script:tempRepo
57 $secondCall | Should -Be $firstCall
58 }
59}
60
61Describe 'Resolve-ComparisonReference' {
62 It 'Returns PSCustomObject with Ref and Label properties' {
63 $result = Resolve-ComparisonReference -BaseBranch 'main'
64 $result | Should -BeOfType [PSCustomObject]
65 $result.PSObject.Properties.Name | Should -Contain 'Ref'
66 $result.PSObject.Properties.Name | Should -Contain 'Label'
67 }
68
69 It 'Uses merge-base when remote branch exists' {
70 # This test assumes main branch exists
71 $result = Resolve-ComparisonReference -BaseBranch 'main'
72 $result.Ref | Should -Not -BeNullOrEmpty
73 }
74
75 It 'Should throw when base branch does not exist' {
76 Mock git { $global:LASTEXITCODE = 1; return $null }
77 { Resolve-ComparisonReference -BaseBranch 'nonexistent-branch-xyz' } | Should -Throw '*does not exist*'
78 }
79}
80
81Describe 'Get-ShortCommitHash' {
82 It 'Returns 7-character hash for HEAD' {
83 $result = Get-ShortCommitHash -Ref 'HEAD'
84 $result | Should -Match '^[a-f0-9]{7,}$'
85 }
86
87 It 'Returns consistent result for same ref' {
88 $first = Get-ShortCommitHash -Ref 'HEAD'
89 $second = Get-ShortCommitHash -Ref 'HEAD'
90 $first | Should -Be $second
91 }
92
93 It 'Should throw when ref resolution fails' {
94 Mock git { $global:LASTEXITCODE = 128; return '' }
95 { Get-ShortCommitHash -Ref 'invalid-ref-xyz' } | Should -Throw "*Failed to resolve ref*"
96 }
97}
98
99Describe 'Get-CommitEntry' {
100 It 'Returns array of formatted commit entries' {
101 $result = Get-CommitEntry -ComparisonRef 'HEAD~1'
102 $result | Should -BeOfType [string]
103 }
104
105 It 'Returns empty array when no commits in range' {
106 $result = Get-CommitEntry -ComparisonRef 'HEAD'
107 $result | Should -BeNullOrEmpty
108 }
109
110 It 'Should throw when commit history retrieval fails' {
111 Mock git { $global:LASTEXITCODE = 128; return $null }
112 { Get-CommitEntry -ComparisonRef 'main' } | Should -Throw '*Failed to retrieve commit history*'
113 }
114}
115
116Describe 'Get-CommitCount' {
117 It 'Returns integer count' {
118 $result = Get-CommitCount -ComparisonRef 'HEAD~5'
119 $result | Should -BeOfType [int]
120 # Merge commits can inflate the count, so just verify it returns a positive integer
121 $result | Should -BeGreaterOrEqual 1
122 }
123
124 It 'Returns 0 when no commits in range' {
125 $result = Get-CommitCount -ComparisonRef 'HEAD'
126 $result | Should -Be 0
127 }
128
129 It 'Should throw when commit count fails' {
130 Mock git { $global:LASTEXITCODE = 128; return '' }
131 { Get-CommitCount -ComparisonRef 'main' } | Should -Throw '*Failed to count commits*'
132 }
133
134 It 'Should return 0 when commit count text is empty' {
135 Mock git { $global:LASTEXITCODE = 0; return '' }
136 $result = Get-CommitCount -ComparisonRef 'main'
137 $result | Should -Be 0
138 }
139}
140
141Describe 'Get-DiffOutput' {
142 It 'Returns array of diff lines' {
143 $result = Get-DiffOutput -ComparisonRef 'HEAD~1'
144 $result | Should -Not -BeNullOrEmpty
145 }
146
147 It 'Excludes markdown when specified' {
148 # Verify the function executes without error when excluding markdown
149 # The result may be empty if only markdown files were changed
150 { Get-DiffOutput -ComparisonRef 'HEAD~1' -ExcludeMarkdownDiff } | Should -Not -Throw
151 }
152
153 It 'Should throw when diff output fails' {
154 Mock git { $global:LASTEXITCODE = 128; return $null }
155 { Get-DiffOutput -ComparisonRef 'main' } | Should -Throw '*Failed to retrieve diff output*'
156 }
157}
158
159Describe 'Get-DiffSummary' {
160 It 'Returns shortstat summary string' {
161 $result = Get-DiffSummary -ComparisonRef 'HEAD~1'
162 $result | Should -BeOfType [string]
163 }
164
165 It 'Should throw when diff summary fails' {
166 Mock git { $global:LASTEXITCODE = 128; return $null }
167 { Get-DiffSummary -ComparisonRef 'main' } | Should -Throw '*Failed to summarize diff output*'
168 }
169
170 It 'Should return "0 files changed" when diff summary is empty' {
171 Mock git { $global:LASTEXITCODE = 0; return '' }
172 $result = Get-DiffSummary -ComparisonRef 'main'
173 $result | Should -Be '0 files changed'
174 }
175}
176
177Describe 'Get-PrXmlContent' {
178 It 'Returns valid XML string' {
179 $result = Get-PrXmlContent -CurrentBranch 'feature/test' -BaseBranch 'main' -CommitEntries @('commit 1', 'commit 2') -DiffOutput @('diff line 1', 'diff line 2')
180 $result | Should -Not -BeNullOrEmpty
181 $result | Should -Match '<commit_history>'
182 $result | Should -Match '</commit_history>'
183 }
184
185 It 'Includes branch information' {
186 $result = Get-PrXmlContent -CurrentBranch 'feature/my-branch' -BaseBranch 'main' -CommitEntries @() -DiffOutput @()
187 $result | Should -Match 'feature/my-branch'
188 $result | Should -Match 'main'
189 }
190
191 It 'Includes commit entries' {
192 $result = Get-PrXmlContent -CurrentBranch 'feature/test' -BaseBranch 'main' -CommitEntries @('abc123 Test commit') -DiffOutput @()
193 $result | Should -Match 'abc123 Test commit'
194 }
195
196 It 'Handles empty inputs' {
197 $result = Get-PrXmlContent -CurrentBranch 'branch' -BaseBranch 'main' -CommitEntries @() -DiffOutput @()
198 $result | Should -Not -BeNullOrEmpty
199 }
200}
201
202Describe 'Get-LineImpact' {
203 It 'Parses insertions and deletions from shortstat' {
204 $result = Get-LineImpact -DiffSummary '5 files changed, 100 insertions(+), 50 deletions(-)'
205 $result | Should -Be 150
206 }
207
208 It 'Handles insertions only' {
209 $result = Get-LineImpact -DiffSummary '2 files changed, 25 insertions(+)'
210 $result | Should -Be 25
211 }
212
213 It 'Handles deletions only' {
214 $result = Get-LineImpact -DiffSummary '1 file changed, 10 deletions(-)'
215 $result | Should -Be 10
216 }
217
218 It 'Returns 0 for summary without insertions or deletions' {
219 $result = Get-LineImpact -DiffSummary 'no changes'
220 $result | Should -Be 0
221 }
222
223 It 'Returns 0 for no changes' {
224 $result = Get-LineImpact -DiffSummary '0 files changed'
225 $result | Should -Be 0
226 }
227}
228
229Describe 'Get-CurrentBranchOrRef' {
230 BeforeAll {
231 . $PSScriptRoot/../../dev-tools/Generate-PrReference.ps1
232 }
233
234 It 'Returns branch name when on a branch' {
235 # This test runs in a real git repo, so it should return something
236 $result = Get-CurrentBranchOrRef
237 $result | Should -Not -BeNullOrEmpty
238 $result | Should -BeOfType [string]
239 }
240
241 It 'Returns string starting with detached@ or branch name' {
242 $result = Get-CurrentBranchOrRef
243 # Either a branch name or detached@<sha>
244 ($result -match '^detached@' -or $result -notmatch '^detached@') | Should -BeTrue
245 }
246
247 It 'Should return detached@sha when in detached HEAD state' {
248 # Use call sequence to distinguish git commands (cross-platform safe)
249 $script:gitCallCount = 0
250 Mock git {
251 $script:gitCallCount++
252 if ($script:gitCallCount -eq 1) {
253 # First call: git branch --show-current returns empty (detached)
254 $global:LASTEXITCODE = 0
255 return ''
256 }
257 # Second call: git rev-parse --short HEAD returns SHA
258 $global:LASTEXITCODE = 0
259 return 'abc1234'
260 }
261 $result = Get-CurrentBranchOrRef
262 $result | Should -Be 'detached@abc1234'
263 }
264
265 It 'Should return unknown when both branch and rev-parse fail' {
266 Mock git {
267 $global:LASTEXITCODE = 128
268 return $null
269 }
270 $result = Get-CurrentBranchOrRef
271 $result | Should -Be 'unknown'
272 }
273}
274
275Describe 'Invoke-PrReferenceGeneration' {
276 It 'Returns FileInfo object' {
277 # Skip if not in a git repo or no commits to compare
278 $commitCount = Get-CommitCount -ComparisonRef 'HEAD~1'
279 if ($commitCount -eq 0) {
280 Set-ItResult -Skipped -Because 'No commits available for comparison'
281 return
282 }
283
284 # Determine available base branch - prefer origin/main, fall back to main, then HEAD~1
285 $baseBranch = $null
286 foreach ($candidate in @('origin/main', 'main', 'HEAD~1')) {
287 & git rev-parse --verify $candidate 2>$null | Out-Null
288 if ($LASTEXITCODE -eq 0) {
289 $baseBranch = $candidate
290 break
291 }
292 }
293
294 if (-not $baseBranch) {
295 Set-ItResult -Skipped -Because 'No suitable base branch available for comparison'
296 return
297 }
298
299 $result = Invoke-PrReferenceGeneration -BaseBranch $baseBranch
300 $result | Should -BeOfType [System.IO.FileInfo]
301 $result.Extension | Should -Be '.xml'
302 }
303
304 It 'Should include markdown exclusion note when ExcludeMarkdownDiff is specified' {
305 # Skip if not in a git repo or no commits
306 $commitCount = Get-CommitCount -ComparisonRef 'HEAD~1'
307 if ($commitCount -eq 0) {
308 Set-ItResult -Skipped -Because 'No commits available for comparison'
309 return
310 }
311
312 $baseBranch = $null
313 foreach ($candidate in @('origin/main', 'main', 'HEAD~1')) {
314 & git rev-parse --verify $candidate 2>$null | Out-Null
315 if ($LASTEXITCODE -eq 0) {
316 $baseBranch = $candidate
317 break
318 }
319 }
320
321 if (-not $baseBranch) {
322 Set-ItResult -Skipped -Because 'No suitable base branch available for comparison'
323 return
324 }
325
326 Mock Write-Host {}
327
328 $result = Invoke-PrReferenceGeneration -BaseBranch $baseBranch -ExcludeMarkdownDiff
329 $result | Should -BeOfType [System.IO.FileInfo]
330
331 # Verify the markdown exclusion note was output
332 Should -Invoke Write-Host -ParameterFilter { $Object -eq 'Note: Markdown files were excluded from diff output' }
333 }
334}