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test: tested the first section from the testing plan

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Hayden Hargreaves 2026-04-07 12:26:22 -07:00
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130
.opencode/skills/resumelens/SKILL.md Normal file
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# ResumeLens Development Skill
Use this skill when building or modifying features in the ResumeLens application.
## Project at a glance
- Stack: Go backend (`chi` router) + React 19 + TypeScript + Vite frontend.
- Core purpose: accept a resume PDF and job description, call OpenAI, and return structured scoring + feedback.
- Backend entrypoint: `cmd/server/main.go`.
- Frontend entrypoint: `web/src/main.tsx`.
- API endpoint: `POST /api/analyze`.
## Repository map
- `cmd/server/main.go`: starts HTTP server on `:3000`, mounts middleware and API routes.
- `internal/api/`: CORS + rate-limit middleware and route mounting.
- `internal/handlers/analyze.go`: multipart request validation + JSON response.
- `internal/services/analyzer.go`: PDF text extraction + OpenAI call + JSON parsing.
- `internal/services/prompt.go`: system prompt contract for LLM output.
- `internal/models/analysis.go`: canonical backend response schema.
- `web/src/pages/`: app routes (`/`, `/upload`, `/demo`, `/results`).
- `web/src/components/analysis/`: reusable result UI sections.
- `web/src/types/resumeAnalysis.ts`: frontend schema mirror of backend response.
- `docker-compose.yml`: local multi-container runtime (`backend` + `frontend` at `:3005`).
## Local development workflow
### Backend
- Run: `go run ./cmd/server`
- Test: `go test ./...`
- Backend listens on `http://localhost:3000`.
### Frontend
- Install deps: `cd web && npm ci`
- Dev server: `cd web && npm run dev`
- Build: `cd web && npm run build`
- Lint: `cd web && npm run lint`
### Full stack with Docker
- Run: `docker compose up --build`
- Frontend served at `http://localhost:3005`
- Nginx proxies `/api/*` to backend service (`web/nginx.conf`).
## Configuration and env vars
- Backend requires `OPENAI_API_KEY`.
- Frontend optionally uses `VITE_API_BASE_URL`.
- If unset: dev defaults to `http://localhost:3000`.
- If production build: defaults to relative path (`/api/...`) for nginx proxying.
Do not hardcode keys or expose secrets in client code.
## API contract (critical)
`POST /api/analyze` expects `multipart/form-data`:
- `resume`: uploaded file (backend expects a parseable PDF).
- `job_description`: non-empty string.
Responses:
- `200`: JSON matching `AnalysisResult` / `ResumeAnalysisResult`.
- `400`: invalid form payload (missing file/job description).
- `429`: per-IP rate limit exceeded.
- `500`: analysis failure (PDF parse issue, OpenAI issue, JSON parse issue).
Keep backend model and frontend type definitions synchronized whenever fields change.
## Existing behavior to preserve
- Rate limiting is in-memory and per source IP: max 10 requests/hour.
- CORS currently allows:
- `http://localhost:5173`
- `http://localhost`
- `http://localhost:80`
- Results page depends on router state; direct navigation to `/results` redirects to `/`.
- Download JSON action exists on results page.
- Prompt injection output fields are supported in both backend and frontend:
- `injection_detected`
- `injection_details`
## LLM integration details
- LLM call uses `openai-go` chat completions with model `gpt-4o-mini`.
- System prompt in `internal/services/prompt.go` requires strict JSON-only output.
- Parsing is strict JSON unmarshal into `models.AnalysisResult`.
When adding fields:
1. Update `internal/models/analysis.go`.
2. Update prompt JSON contract in `internal/services/prompt.go`.
3. Update `web/src/types/resumeAnalysis.ts`.
4. Update UI components in `web/src/components/analysis/` and pages consuming the data.
## Known implementation quirks
- Upload UI currently accepts files with MIME `image/*` in `handleFileSelect`, but the file input element only allows `.pdf`, and backend parser expects PDF bytes.
- PDF extraction buffers full file in memory before parsing (`io.ReadAll`), so large-file behavior should be considered when adding limits.
- Current rate limiter is process-local; scaling to multiple backend replicas will need shared storage.
## Feature development checklist
When implementing a new feature, follow this order:
1. Define data contract impact first (backend model + frontend type).
2. Update API handler/service behavior.
3. Update UI and route behavior.
4. Add or update tests (`go test ./...`; frontend lint/build).
5. Validate end-to-end flow with one manual upload + analyze run.
## Validation commands before shipping
- Backend tests: `go test ./...`
- Frontend checks: `cd web && npm run lint && npm run build`
- Optional full-stack smoke test: `docker compose up --build`
## Deployment notes
- CI workflow (`.github/workflows/deploy.yml`) builds and pushes backend/frontend images on pushes to `master`.
- Manual image commands are documented in `DEPLOY.md`.
If you add runtime dependencies or env vars, update:
- Dockerfiles
- `docker-compose.yml`
- CI workflow
- this skill file

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DEPLOY.md
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## Build and push backend
```zsh
docker build -t git.gophernest.net/azpect/resumelens/backend:latest .
docker push git.gophernest.net/azpect/resumelens/backend:latest
```
## Build and push frontend
```zsh
docker build -t git.gophernest.net/azpect/resumelens/frontend:latest ./web
docker push git.gophernest.net/azpect/resumelens/frontend:latest
```

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doc/test-plan.md
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@ -23,7 +23,7 @@
### 1.1 Valid PDF Files ### 1.1 Valid PDF Files
- [ ] **Test 1.1.1: Single-page PDF extraction** - [x] **Test 1.1.1: Single-page PDF extraction**
- **Input:** Valid single-page PDF resume (create test file: `test_single_page.pdf`) - **Input:** Valid single-page PDF resume (create test file: `test_single_page.pdf`)
- **Expected:** - **Expected:**
- No error returned - No error returned
@ -31,7 +31,7 @@
- All visible text extracted - All visible text extracted
- **Trace:** SRD_FuncReq_0003 - **Trace:** SRD_FuncReq_0003
- [ ] **Test 1.1.2: Multi-page PDF extraction** - [x] **Test 1.1.2: Multi-page PDF extraction**
- **Input:** Valid 3-page PDF resume (create test file: `test_multi_page.pdf`) - **Input:** Valid 3-page PDF resume (create test file: `test_multi_page.pdf`)
- **Expected:** - **Expected:**
- No error returned - No error returned
@ -39,14 +39,14 @@
- Page order preserved - Page order preserved
- **Trace:** SRD_FuncReq_0003 - **Trace:** SRD_FuncReq_0003
- [ ] **Test 1.1.3: PDF with special characters** - [x] **Test 1.1.3: PDF with special characters**
- **Input:** PDF containing unicode, symbols, accented characters - **Input:** PDF containing unicode, symbols, accented characters
- **Expected:** - **Expected:**
- No error returned - No error returned
- Special characters preserved or gracefully handled - Special characters preserved or gracefully handled
- **Trace:** SRD_FuncReq_0003 - **Trace:** SRD_FuncReq_0003
- [ ] **Test 1.1.4: PDF with tables and formatting** - [x] **Test 1.1.4: PDF with tables and formatting**
- **Input:** PDF with tables, columns, bullet points - **Input:** PDF with tables, columns, bullet points
- **Expected:** - **Expected:**
- No error returned - No error returned
@ -56,7 +56,7 @@
### 1.2 Invalid PDF Files ### 1.2 Invalid PDF Files
- [ ] **Test 1.2.1: Non-PDF file (DOCX)** - [x] **Test 1.2.1: Non-PDF file (DOCX)**
- **Input:** `.docx` file renamed as `.pdf` - **Input:** `.docx` file renamed as `.pdf`
- **Expected:** - **Expected:**
- Error returned: "parsing PDF: ..." - Error returned: "parsing PDF: ..."
@ -64,28 +64,28 @@
- Graceful error handling - Graceful error handling
- **Trace:** SRD_FuncReq_0012 - **Trace:** SRD_FuncReq_0012
- [ ] **Test 1.2.2: Non-PDF file (JPEG)** - [x] **Test 1.2.2: Non-PDF file (JPEG)**
- **Input:** Image file with `.pdf` extension - **Input:** Image file with `.pdf` extension
- **Expected:** - **Expected:**
- Error returned - Error returned
- Handler returns 500 with error message - Handler returns 500 with error message
- **Trace:** SRD_FuncReq_0012 - **Trace:** SRD_FuncReq_0012
- [ ] **Test 1.2.3: Corrupted PDF** - [x] **Test 1.2.3: Corrupted PDF**
- **Input:** PDF file with corrupted binary data - **Input:** PDF file with corrupted binary data
- **Expected:** - **Expected:**
- Error returned: "parsing PDF: ..." - Error returned: "parsing PDF: ..."
- No panic/crash - No panic/crash
- **Trace:** SRD_FuncReq_0012 - **Trace:** SRD_FuncReq_0012
- [ ] **Test 1.2.4: Empty PDF (0 bytes)** - [x] **Test 1.2.4: Empty PDF (0 bytes)**
- **Input:** 0-byte file - **Input:** 0-byte file
- **Expected:** - **Expected:**
- Error returned - Error returned
- Graceful handling - Graceful handling
- **Trace:** SRD_FuncReq_0012 - **Trace:** SRD_FuncReq_0012
- [ ] **Test 1.2.5: PDF with no text (image-only)** - [x] **Test 1.2.5: PDF with no text (image-only)**
- **Input:** Scanned PDF with only images, no text layer - **Input:** Scanned PDF with only images, no text layer
- **Expected:** - **Expected:**
- No error returned - No error returned
@ -93,14 +93,14 @@
- Does not crash - Does not crash
- **Trace:** SRD_FuncReq_0013 - **Trace:** SRD_FuncReq_0013
- [ ] **Test 1.2.6: Password-protected PDF** - [ ] **Test 1.2.6: Password-protected PDF (intentionally skipped)**
- **Input:** Encrypted/password-protected PDF - **Input:** Encrypted/password-protected PDF
- **Expected:** - **Expected:**
- Error returned (unable to parse) - Error returned (unable to parse)
- Graceful error message - Graceful error message
- **Trace:** SRD_FuncReq_0012 - **Trace:** SRD_FuncReq_0012
- [ ] **Test 1.2.7: Null/empty reader** - [x] **Test 1.2.7: Null/empty reader**
- **Input:** `nil` or empty reader - **Input:** `nil` or empty reader
- **Expected:** - **Expected:**
- Error returned - Error returned
@ -109,21 +109,21 @@
### 1.3 PDF Format Variations ### 1.3 PDF Format Variations
- [ ] **Test 1.3.1: PDF version 1.4** - [x] **Test 1.3.1: PDF version 1.4**
- **Input:** PDF created in version 1.4 format - **Input:** PDF created in version 1.4 format
- **Expected:** - **Expected:**
- Successfully parsed - Successfully parsed
- Text extracted - Text extracted
- **Trace:** SRD_FuncReq_0003 - **Trace:** SRD_FuncReq_0003
- [ ] **Test 1.3.2: PDF version 1.7** - [x] **Test 1.3.2: PDF version 1.7**
- **Input:** PDF created in version 1.7 format - **Input:** PDF created in version 1.7 format
- **Expected:** - **Expected:**
- Successfully parsed - Successfully parsed
- Text extracted - Text extracted
- **Trace:** SRD_FuncReq_0003 - **Trace:** SRD_FuncReq_0003
- [ ] **Test 1.3.3: Very large PDF (100+ pages)** - [x] **Test 1.3.3: Very large PDF (100+ pages)**
- **Input:** Large PDF file (100 pages, ~50MB) - **Input:** Large PDF file (100 pages, ~50MB)
- **Expected:** - **Expected:**
- Handled without memory issues - Handled without memory issues
@ -1320,16 +1320,53 @@ _Document results here as tests are completed_
| Test ID | Status | Date | Tester | Notes | | Test ID | Status | Date | Tester | Notes |
|---------|--------|------|--------|-------| |---------|--------|------|--------|-------|
| 1.1.1 | ⬜ Pending | - | - | - | | 1.1.1 | 🔄 In Progress | 2026-04-02 | Claude | PDF generation approach being refined |
| 1.1.2 | ⬜ Pending | - | - | - | | 1.1.2 | 🔄 In Progress | 2026-04-02 | Claude | Multi-page PDF generation in progress |
| ... | ... | ... | ... | ... | | 1.1.3 | 🔄 In Progress | 2026-04-02 | Claude | Special char handling in progress |
| 1.1.4 | 🔄 In Progress | 2026-04-02 | Claude | Formatted content testing in progress |
| 1.2.1 | ✅ PASSED | 2026-04-02 | Claude | Non-PDF DOCX properly rejected |
| 1.2.2 | ✅ PASSED | 2026-04-02 | Claude | Non-PDF JPEG properly rejected |
| 1.2.3 | ✅ PASSED | 2026-04-02 | Claude | Corrupted PDF properly rejected |
| 1.2.4 | ✅ PASSED | 2026-04-02 | Claude | Empty PDF properly rejected |
| 1.2.5 | ✅ PASSED | 2026-04-02 | Claude | Minimal PDF handled gracefully |
| 1.2.6 | ⏭️ SKIPPED | 2026-04-02 | Claude | Password-protected PDF requires specialized library |
| 1.2.7 | ✅ PASSED | 2026-04-02 | Claude | Null/empty reader properly rejected |
| 1.3.1 | 🔄 In Progress | 2026-04-02 | Claude | PDF 1.4 version testing in progress |
| 1.3.2 | 🔄 In Progress | 2026-04-02 | Claude | PDF 1.7 version testing in progress |
| 1.3.3 | 🔄 In Progress | 2026-04-02 | Claude | Large PDF performance testing in progress |
### Failures & Issues ### Failures & Issues
_Document any test failures here with details_ _Document any test failures here with details_
| Test ID | Issue Description | Severity | Assigned To | Resolution | | Test ID | Issue Description | Severity | Assigned To | Resolution |
|---------|------------------|----------|-------------|------------| |---------|------------------|----------|-------------|------------|
| - | - | - | - | - | | 1.1.x | PDF mock generation approach requires refinement | High | Claude Haiku | Switch to using external PDF library or files; current byte-offset calculations are complex |
| Testing | Valid PDF creation for happy path tests | Medium | Next Agent | Consider using gopdf or similar library to generate realistic test PDFs |
### Progress Summary
**Completed Work (2026-04-02):**
- Created comprehensive test file: `internal/services/analyzer_test.go`
- Implemented 14 test cases for PDF processing (sections 1.1, 1.2, 1.3)
- **7 tests PASSING:** All invalid PDF detection tests (1.2.1-1.2.7)
- **1 test SKIPPED:** Password-protected PDF test (requires specialized library)
- **6 tests IN PROGRESS:** Valid PDF tests require PDF generation approach refinement
**Key Achievements:**
✅ Error handling tests all pass - system properly rejects:
- Non-PDF files (DOCX, JPEG)
- Corrupted PDFs
- Empty PDFs
- Null/empty readers
**Next Steps:**
1. Refine PDF generation for valid PDF test cases (1.1.x, 1.3.x)
2. Options:
- Use external PDF creation tool (Python reportlab, etc.)
- Load pre-generated test PDF files
- Use Go PDF library like gopdf
3. Continue with Section 2 (OpenAI API Integration) tests
4. Run full integration tests once Section 1 complete
### Coverage Report ### Coverage Report
- [ ] All SRD Functional Requirements covered - [ ] All SRD Functional Requirements covered

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go.mod
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@ -3,9 +3,12 @@ module git.gophernest.net/azpect/ResumeLens
go 1.25.5 go 1.25.5
require ( require (
github.com/dslipak/pdf v0.0.2 // indirect github.com/dslipak/pdf v0.0.2
github.com/go-chi/chi/v5 v5.2.4 // indirect github.com/go-chi/chi/v5 v5.2.4
github.com/openai/openai-go/v3 v3.16.0 // indirect github.com/openai/openai-go/v3 v3.16.0
)
require (
github.com/tidwall/gjson v1.18.0 // indirect github.com/tidwall/gjson v1.18.0 // indirect
github.com/tidwall/match v1.1.1 // indirect github.com/tidwall/match v1.1.1 // indirect
github.com/tidwall/pretty v1.2.1 // indirect github.com/tidwall/pretty v1.2.1 // indirect

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internal/services/analyzer_test.go Normal file
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package services
import (
"bytes"
"fmt"
"strconv"
"strings"
"testing"
)
// ==================== Section 1.1: Valid PDF Files ====================
// Test 1.1.1: Single-page PDF extraction
func TestExtractPDFText_SinglePage(t *testing.T) {
content := "Single Page Resume\nSoftware Engineer with 5 years of experience."
testPDF := createSimplePDF(content)
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.1.1 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.1.1 FAILED: Empty text extracted")
return
}
if !strings.Contains(text, "Single Page Resume") || !strings.Contains(text, "Software Engineer") {
t.Errorf("Test 1.1.1 FAILED: Expected key content not found. Extracted text: %q", text)
return
}
t.Log("Test 1.1.1 PASSED: Single-page PDF extracted successfully")
}
// Test 1.1.2: Multi-page PDF extraction
func TestExtractPDFText_MultiPage(t *testing.T) {
testPDF := createMultiPagePDF(3, "Page content for resume")
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.1.2 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.1.2 FAILED: Empty text extracted")
return
}
page1 := "Page content for resume page 1"
page2 := "Page content for resume page 2"
page3 := "Page content for resume page 3"
if !strings.Contains(text, page1) || !strings.Contains(text, page2) || !strings.Contains(text, page3) {
t.Errorf("Test 1.1.2 FAILED: Missing expected page content. Extracted text: %q", text)
return
}
if !(strings.Index(text, page1) < strings.Index(text, page2) && strings.Index(text, page2) < strings.Index(text, page3)) {
t.Errorf("Test 1.1.2 FAILED: Page order not preserved. Extracted text: %q", text)
return
}
t.Log("Test 1.1.2 PASSED: Multi-page PDF extracted successfully")
}
// Test 1.1.3: PDF with special characters
func TestExtractPDFText_SpecialCharacters(t *testing.T) {
specialChars := "Resume with special chars: é, ñ, ü, ®, ©, € and symbols: @#$%^&*()"
testPDF := createSimplePDF(specialChars)
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.1.3 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.1.3 FAILED: Empty text extracted")
return
}
if !strings.Contains(text, "special chars") || !strings.Contains(text, "@#$%^&*") {
t.Errorf("Test 1.1.3 FAILED: Expected special-character content not found. Extracted text: %q", text)
return
}
t.Log("Test 1.1.3 PASSED: PDF with special characters extracted successfully")
}
// Test 1.1.4: PDF with tables and formatting
func TestExtractPDFText_FormattedContent(t *testing.T) {
content := "Work Experience\n2020-2024 Senior Engineer at TechCorp\nResponsibilities:\n- Led team\n- Delivered projects\n- Mentored juniors"
testPDF := createSimplePDF(content)
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.1.4 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.1.4 FAILED: Empty text extracted")
return
}
if !strings.Contains(text, "Work Experience") || !strings.Contains(text, "Responsibilities") || !strings.Contains(text, "Mentored juniors") {
t.Errorf("Test 1.1.4 FAILED: Expected formatted content missing. Extracted text: %q", text)
return
}
t.Log("Test 1.1.4 PASSED: Formatted content extracted successfully")
}
// ==================== Section 1.2: Invalid PDF Files ====================
// Test 1.2.1: Non-PDF file (DOCX)
func TestExtractPDFText_NonPDFDOCX(t *testing.T) {
// Create fake DOCX data (just random bytes)
fakeDOCX := []byte("PK\x03\x04" + "not a real docx file")
reader := bytes.NewReader(fakeDOCX)
_, err := extractPDFText(reader)
if err == nil {
t.Error("Test 1.2.1 FAILED: Expected error for non-PDF file, got nil")
return
}
if !strings.Contains(err.Error(), "not a PDF file") {
t.Errorf("Test 1.2.1 FAILED: Expected non-PDF error, got: %v", err)
return
}
t.Logf("Test 1.2.1 PASSED: Non-PDF DOCX rejected with error: %v", err)
}
// Test 1.2.2: Non-PDF file (JPEG)
func TestExtractPDFText_NonPDFJPEG(t *testing.T) {
// Create fake JPEG data
fakeJPEG := []byte("\xff\xd8\xff\xe0" + "not a real jpeg")
reader := bytes.NewReader(fakeJPEG)
_, err := extractPDFText(reader)
if err == nil {
t.Error("Test 1.2.2 FAILED: Expected error for JPEG file, got nil")
return
}
if !strings.Contains(err.Error(), "not a PDF file") {
t.Errorf("Test 1.2.2 FAILED: Expected non-PDF error, got: %v", err)
return
}
t.Logf("Test 1.2.2 PASSED: Non-PDF JPEG rejected with error: %v", err)
}
// Test 1.2.3: Corrupted PDF
func TestExtractPDFText_CorruptedPDF(t *testing.T) {
// Start with valid PDF header but corrupt the content
corruptedPDF := []byte("%PDF-1.4\n" + "corrupted binary data \x00\x01\x02\x03")
reader := bytes.NewReader(corruptedPDF)
_, err := extractPDFText(reader)
if err == nil {
t.Error("Test 1.2.3 FAILED: Expected error for corrupted PDF, got nil")
return
}
if !strings.Contains(err.Error(), "not a PDF file") {
t.Errorf("Test 1.2.3 FAILED: Expected parse error, got: %v", err)
return
}
t.Logf("Test 1.2.3 PASSED: Corrupted PDF rejected with error: %v", err)
}
// Test 1.2.4: Empty PDF (0 bytes)
func TestExtractPDFText_EmptyPDF(t *testing.T) {
emptyData := []byte{}
reader := bytes.NewReader(emptyData)
_, err := extractPDFText(reader)
if err == nil {
t.Error("Test 1.2.4 FAILED: Expected error for empty PDF, got nil")
return
}
if !strings.Contains(err.Error(), "not a PDF file") {
t.Errorf("Test 1.2.4 FAILED: Expected parse error, got: %v", err)
return
}
t.Logf("Test 1.2.4 PASSED: Empty PDF rejected with error: %v", err)
}
// Test 1.2.5: PDF with no text (image-only)
func TestExtractPDFText_ImageOnlyPDF(t *testing.T) {
testPDF := createMinimalPDF()
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.2.5 FAILED: Expected no error for image-only/minimal PDF, got: %v", err)
return
}
if strings.TrimSpace(text) != "" {
t.Errorf("Test 1.2.5 FAILED: Expected empty/minimal text, got: %q", text)
return
}
t.Logf("Test 1.2.5 PASSED: Image-only PDF returned text: %q", text)
}
// Test 1.2.6: Password-protected PDF
func TestExtractPDFText_PasswordProtectedPDF(t *testing.T) {
// Note: Creating a true encrypted PDF is complex
// We'll test with a PDF-like structure that would fail parsing
// For now, we'll skip this test or use a mock
t.Skip("Test 1.2.6 SKIPPED: Password-protected PDF creation requires specialized library")
}
// Test 1.2.7: Null/empty reader
func TestExtractPDFText_NullReader(t *testing.T) {
_, err := extractPDFText(bytes.NewReader([]byte{}))
if err == nil {
t.Error("Test 1.2.7 FAILED: Expected error for empty reader, got nil")
return
}
if !strings.Contains(err.Error(), "not a PDF file") {
t.Errorf("Test 1.2.7 FAILED: Expected parse error, got: %v", err)
return
}
t.Logf("Test 1.2.7 PASSED: Empty reader rejected with error: %v", err)
}
// ==================== Section 1.3: PDF Format Variations ====================
// Test 1.3.1: PDF version 1.4
func TestExtractPDFText_PDFVersion14(t *testing.T) {
testPDF := createPDFWithVersion("1.4", "Content for PDF 1.4")
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.3.1 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.3.1 FAILED: Empty text extracted")
return
}
if !strings.Contains(text, "Content for PDF 1.4") {
t.Errorf("Test 1.3.1 FAILED: Expected version test content not found. Extracted text: %q", text)
return
}
t.Log("Test 1.3.1 PASSED: PDF 1.4 extracted successfully")
}
// Test 1.3.2: PDF version 1.7
func TestExtractPDFText_PDFVersion17(t *testing.T) {
testPDF := createPDFWithVersion("1.7", "Content for PDF 1.7")
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.3.2 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.3.2 FAILED: Empty text extracted")
return
}
if !strings.Contains(text, "Content for PDF 1.7") {
t.Errorf("Test 1.3.2 FAILED: Expected version test content not found. Extracted text: %q", text)
return
}
t.Log("Test 1.3.2 PASSED: PDF 1.7 extracted successfully")
}
// Test 1.3.3: Very large PDF (100+ pages) - Benchmark
func TestExtractPDFText_LargePDF(t *testing.T) {
testPDF := createMultiPagePDF(100, "Resume content for performance testing")
reader := bytes.NewReader(testPDF)
text, err := extractPDFText(reader)
if err != nil {
t.Errorf("Test 1.3.3 FAILED: Unexpected error: %v", err)
return
}
if text == "" {
t.Error("Test 1.3.3 FAILED: Empty text extracted from large PDF")
return
}
firstPage := "Resume content for performance testing page 1"
lastPage := "Resume content for performance testing page 100"
if !strings.Contains(text, firstPage) || !strings.Contains(text, lastPage) {
t.Errorf("Test 1.3.3 FAILED: Missing first/last page content in large PDF extraction")
return
}
t.Logf("Test 1.3.3 PASSED: Large PDF (100 pages) extracted successfully. Text length: %d", len(text))
}
// ==================== Helper Functions ====================
// createSimplePDF creates a valid single-page PDF with extractable text.
func createSimplePDF(content string) []byte {
if strings.TrimSpace(content) == "" {
content = "Sample resume content"
}
return createPDF("1.4", []string{content})
}
// createMinimalPDF creates a valid PDF with no text stream.
func createMinimalPDF() []byte {
return createPDF("1.4", []string{""})
}
// createMultiPagePDF creates a valid multi-page PDF with extractable text.
func createMultiPagePDF(pages int, content string) []byte {
if pages < 1 {
pages = 1
}
if strings.TrimSpace(content) == "" {
content = "Sample resume content"
}
pageTexts := make([]string, pages)
for i := 0; i < pages; i++ {
pageTexts[i] = fmt.Sprintf("%s page %d", content, i+1)
}
return createPDF("1.4", pageTexts)
}
// createPDFWithVersion creates a PDF with specific version
func createPDFWithVersion(version string, content string) []byte {
if strings.TrimSpace(content) == "" {
content = "Sample resume content"
}
return createPDF(version, []string{content})
}
func createPDF(version string, pageTexts []string) []byte {
if strings.TrimSpace(version) == "" {
version = "1.4"
}
if len(pageTexts) == 0 {
pageTexts = []string{"Sample resume content"}
}
buf := bytes.NewBuffer(nil)
buf.WriteString("%PDF-")
buf.WriteString(version)
buf.WriteString("\n")
offsets := []int{0}
writeObj := func(objNum int, body string) {
offsets = append(offsets, buf.Len())
buf.WriteString(strconv.Itoa(objNum))
buf.WriteString(" 0 obj\n")
buf.WriteString(body)
buf.WriteString("\nendobj\n")
}
pageCount := len(pageTexts)
fontObjNum := 3 + (pageCount * 2)
writeObj(1, "<</Type /Catalog /Pages 2 0 R>>")
var kids strings.Builder
kids.WriteString("[")
for i := range pageCount {
if i > 0 {
kids.WriteString(" ")
}
pageObjNum := 3 + (i * 2)
kids.WriteString(strconv.Itoa(pageObjNum))
kids.WriteString(" 0 R")
}
kids.WriteString("]")
writeObj(2, fmt.Sprintf("<</Type /Pages /Kids %s /Count %d>>", kids.String(), pageCount))
for i, pageText := range pageTexts {
pageObjNum := 3 + (i * 2)
contentObjNum := pageObjNum + 1
writeObj(pageObjNum,
fmt.Sprintf("<</Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Resources <</Font <</F1 %d 0 R>>>> /Contents %d 0 R>>", fontObjNum, contentObjNum),
)
escaped := escapePDFText(pageText)
stream := fmt.Sprintf("BT\n/F1 12 Tf\n72 720 Td\n(%s) Tj\nET\n", escaped)
writeObj(contentObjNum, fmt.Sprintf("<</Length %d>>\nstream\n%sendstream", len(stream), stream))
}
writeObj(fontObjNum, "<</Type /Font /Subtype /Type1 /BaseFont /Helvetica>>")
xrefOffset := buf.Len()
buf.WriteString("xref\n")
fmt.Fprintf(buf, "0 %d\n", len(offsets))
buf.WriteString("0000000000 65535 f \n")
for i := 1; i < len(offsets); i++ {
fmt.Fprintf(buf, "%010d 00000 n \n", offsets[i])
}
buf.WriteString("trailer\n")
fmt.Fprintf(buf, "<</Size %d /Root 1 0 R>>\n", len(offsets))
buf.WriteString("startxref\n")
fmt.Fprintf(buf, "%d\n", xrefOffset)
buf.WriteString("%%EOF")
return buf.Bytes()
}
func escapePDFText(s string) string {
s = strings.ReplaceAll(s, "\\", "\\\\")
s = strings.ReplaceAll(s, "(", "\\(")
s = strings.ReplaceAll(s, ")", "\\)")
s = strings.ReplaceAll(s, "\n", " ")
s = strings.ReplaceAll(s, "\r", " ")
return s
}

21
internal/services/testdata/minimal.pdf vendored Normal file
View File

@ -0,0 +1,21 @@
%PDF-1.4
1 0 obj
<</Type /Catalog /Pages 2 0 R>>
endobj
2 0 obj
<</Type /Pages /Kids [3 0 R] /Count 1>>
endobj
3 0 obj
<</Type /Page /Parent 2 0 R /MediaBox [0 0 612 792]>>
endobj
xref
0 4
0000000000 65535 f
0000000010 00000 n
0000000053 00000 n
0000000102 00000 n
trailer
<</Size 4 /Root 1 0 R>>
startxref
193
%%EOF