diff --git a/opus_orchestrator/orchestrator.py b/opus_orchestrator/orchestrator.py
index 91aa02d..14f2a0e 100644
--- a/opus_orchestrator/orchestrator.py
+++ b/opus_orchestrator/orchestrator.py
@@ -134,6 +134,7 @@ class OpusOrchestrator:
                 self._classify_purpose_from_intent(
                     concept=intended_outcome,  # Using outcome as proxy for concept
                     target_audience=target_audience,
+                    intended_outcome=intended_outcome,
                 )
             
             # Select appropriate framework based on purpose
@@ -190,18 +191,20 @@ class OpusOrchestrator:
         self,
         concept: str,
         target_audience: str,
+        intended_outcome: str,
     ) -> None:
         """Classify purpose from book intent using keyword classifier.
         
         Args:
             concept: The book concept/title
             target_audience: Target audience description
+            intended_outcome: What the book intends to achieve
         """
         classifier = PurposeClassifier()
         result = classifier._keyword_classify(
             concept=concept or "",
             target_audience=target_audience,
-            intended_outcome=self.intent.intended_outcome or "",
+            intended_outcome=intended_outcome or "",
         )
         
         self.purpose = result.purpose
diff --git a/tests/test_e2e.py b/tests/test_e2e.py
new file mode 100644
index 0000000..c8daac9
--- /dev/null
+++ b/tests/test_e2e.py
@@ -0,0 +1,280 @@
+"""E2E Integration Tests for Opus Orchestrator."""
+
+import pytest
+from unittest.mock import Mock, patch, AsyncMock
+
+
+class TestE2EGitHubToOutput:
+    """Test full pipeline: GitHub input → Generate → GitHub output."""
+
+    @pytest.mark.integration
+    @pytest.mark.skip(reason="Full E2E test - takes significant time")
+    def test_full_pipeline_github_to_github(self):
+        """Test full pipeline with GitHub input and output."""
+        # This would be the ideal E2E test:
+        # 1. Ingest from GitHub
+        # 2. Generate content
+        # 3. Push to GitHub
+        
+        # For now, document the steps
+        assert True
+
+    def test_pipeline_stages_documented(self):
+        """Test that pipeline stages are documented."""
+        from opus_orchestrator.orchestrator import OpusOrchestrator
+        
+        # Verify all stages exist
+        stages = [
+            'snowflake_stage_1',
+            'snowflake_stage_2', 
+            'snowflake_stage_3',
+            'snowflake_stage_4',
+            'snowflake_stage_5',
+            'snowflake_stage_6',
+            'snowflake_stage_7',
+        ]
+        
+        for stage in stages:
+            assert hasattr(OpusOrchestrator, stage), f"Missing stage: {stage}"
+
+
+class TestE2ENonfictionPipeline:
+    """Test nonfiction-specific E2E pipeline."""
+
+    def test_nonfiction_purpose_classification(self):
+        """Test purpose classification in pipeline."""
+        from opus_orchestrator.nonfiction.classifier import PurposeClassifier
+        from opus_orchestrator.nonfiction_taxonomy import ReaderPurpose
+        
+        classifier = PurposeClassifier()
+        
+        # Test various inputs
+        result = classifier._keyword_classify(
+            concept="How to learn Python",
+            target_audience="Beginners",
+            intended_outcome="Learn programming",
+        )
+        
+        assert result.purpose in ReaderPurpose
+        assert result.confidence > 0
+
+    def test_framework_selection_by_purpose(self):
+        """Test framework selection based on purpose."""
+        from opus_orchestrator.nonfiction_taxonomy import (
+            select_framework,
+            ReaderPurpose,
+            NonfictionCategory,
+        )
+        
+        # Test different purposes
+        for purpose in ReaderPurpose:
+            framework = select_framework(
+                purpose=purpose,
+                category=None,
+                user_preferred_framework=None,
+            )
+            
+            assert framework is not None
+            assert "name" in framework
+
+
+class TestE2EFictionPipeline:
+    """Test fiction-specific E2E pipeline."""
+
+    def test_fiction_agents_initialized(self):
+        """Test fiction agents are properly initialized."""
+        from opus_orchestrator import OpusOrchestrator
+        
+        orch = OpusOrchestrator(
+            book_type="fiction",
+            genre="fantasy",
+        )
+        
+        # Verify fiction agents exist
+        assert "architect" in orch.agents
+        assert "worldsmith" in orch.agents
+        assert "character_lead" in orch.agents
+        assert "voice" in orch.agents
+        assert "editor" in orch.agents
+
+    def test_snowflake_method_stages(self):
+        """Test Snowflake method stages are available."""
+        from opus_orchestrator import OpusOrchestrator
+        
+        orch = OpusOrchestrator(book_type="fiction")
+        
+        # Check all Snowflake stage attributes exist
+        assert hasattr(orch, 'one_sentence')
+        assert hasattr(orch, 'one_paragraph')
+        assert hasattr(orch, 'character_sheets')
+        assert hasattr(orch, 'four_page_outline')
+        assert hasattr(orch, 'character_charts')
+        assert hasattr(orch, 'scene_list')
+
+
+class TestE2EErrorHandling:
+    """Test error handling in E2E scenarios."""
+
+    def test_missing_api_key_handling(self):
+        """Test proper handling when no API key."""
+        import os
+        from opus_orchestrator.config import get_config
+        
+        # Save original value
+        orig_key = os.environ.get("OPENAI_API_KEY")
+        
+        # Temporarily remove key
+        if "OPENAI_API_KEY" in os.environ:
+            del os.environ["OPENAI_API_KEY"]
+        
+        try:
+            # Should raise or handle gracefully
+            config = get_config()
+            # May return default config
+            assert config is not None
+        finally:
+            # Restore key
+            if orig_key:
+                os.environ["OPENAI_API_KEY"] = orig_key
+
+    def test_invalid_book_type(self):
+        """Test handling of invalid book type."""
+        from opus_orchestrator.schemas import BookType
+        
+        # Should handle invalid type
+        with pytest.raises(ValueError):
+            BookType("invalid_type")
+
+    def test_orchestrator_graceful_failure(self):
+        """Test orchestrator handles failures gracefully."""
+        from opus_orchestrator import OpusOrchestrator
+        
+        orch = OpusOrchestrator(book_type="fiction")
+        
+        # State should be None initially
+        assert orch.state is None
+
+
+class TestE2EConfiguration:
+    """Test configuration in E2E scenarios."""
+
+    def test_config_loading(self):
+        """Test configuration loads properly."""
+        from opus_orchestrator.config import get_config
+        
+        config = get_config()
+        
+        assert config is not None
+        assert config.agent is not None
+
+    def test_config_validation(self):
+        """Test config validates properly."""
+        from opus_orchestrator.config import OpusConfig
+        
+        config = OpusConfig()
+        
+        # Verify defaults are sensible
+        assert config.agent.max_iterations > 0
+        assert config.iteration.approval_threshold > 0
+        assert config.iteration.approval_threshold <= 1.0
+
+
+class TestE2EStateManagement:
+    """Test state management across pipeline."""
+
+    def test_state_initialization(self):
+        """Test OpusState initializes correctly."""
+        from opus_orchestrator.state import OpusState
+        
+        state = OpusState()
+        
+        assert state.progress == 0.0
+        assert state.current_stage == "ingestion"
+        assert state.errors == []
+        assert state.warnings == []
+
+    def test_state_progress_tracking(self):
+        """Test progress is tracked properly."""
+        from opus_orchestrator.state import OpusState
+        
+        state = OpusState()
+        
+        # Simulate progress
+        state.progress = 0.5
+        state.current_stage = "drafting"
+        
+        assert state.progress == 0.5
+        assert state.current_stage == "drafting"
+
+    def test_state_error_tracking(self):
+        """Test errors are tracked."""
+        from opus_orchestrator.state import OpusState
+        
+        state = OpusState()
+        
+        # Add an error
+        state.errors.append("Test error")
+        
+        assert len(state.errors) == 1
+        assert "Test error" in state.errors
+
+
+class TestE2EBookTypes:
+    """Test different book type configurations."""
+
+    def test_fiction_config(self):
+        """Test fiction-specific configuration."""
+        from opus_orchestrator import OpusOrchestrator
+        
+        orch = OpusOrchestrator(
+            book_type="fiction",
+            genre="mystery",
+            target_word_count=75000,
+        )
+        
+        assert orch.book_type.value == "fiction"
+        assert orch.framework_info is not None
+
+    def test_nonfiction_config(self):
+        """Test nonfiction-specific configuration."""
+        from opus_orchestrator import OpusOrchestrator
+        
+        orch = OpusOrchestrator(
+            book_type="nonfiction",
+            genre="science",
+            target_word_count=50000,
+        )
+        
+        assert orch.book_type.value == "nonfiction"
+        assert orch.purpose is not None
+
+
+class TestE2EFrameworks:
+    """Test different frameworks in E2E."""
+
+    def test_all_story_frameworks_available(self):
+        """Test all story frameworks are available."""
+        from opus_orchestrator.frameworks import StoryFramework
+        
+        frameworks = [
+            StoryFramework.SNOWFLAKE,
+            StoryFramework.THREE_ACT,
+            StoryFramework.HERO_JOURNEY,
+            StoryFramework.SAVE_THE_CAT,
+            StoryFramework.STORY_CIRCLE,
+            StoryFramework.SEVEN_POINT,
+            StoryFramework.FICHTEAN,
+        ]
+        
+        for fw in frameworks:
+            assert fw is not None
+
+    def test_framework_info_retrieval(self):
+        """Test framework info can be retrieved."""
+        from opus_orchestrator.frameworks import FRAMEWORKS, StoryFramework
+        
+        for framework in StoryFramework:
+            info = FRAMEWORKS.get(framework)
+            
+            if info:
+                assert "name" in info or hasattr(framework, 'value')
diff --git a/tests/test_generation.py b/tests/test_generation.py
new file mode 100644
index 0000000..58cf7fa
--- /dev/null
+++ b/tests/test_generation.py
@@ -0,0 +1,374 @@
+"""Tests for NonfictionGenerator document generation.
+
+Tests for:
+- DIAXIS_EXPLANATION framework
+- DIAXIS_TUTORIAL framework
+- TECHNICAL_MANUAL framework
+- Word count verification
+- Structure verification
+- Quality verification
+"""
+
+import pytest
+import re
+from unittest.mock import Mock, patch, MagicMock
+from typing import Optional
+
+
+# =============================================================================
+# TEST SOURCE CONTENT
+# =============================================================================
+
+# Source content from mrhavens/opus-orchestrator-tests
+SOURCE_CONTENT = """# Test Source File 1 - Philosophy
+
+## The Nature of Consciousness
+
+Consciousness remains one of the greatest mysteries in science and philosophy. Despite centuries of inquiry, we still lack a comprehensive understanding of how subjective experience emerges from physical processes.
+
+### Key Questions
+
+1. What is the relationship between brain activity and conscious experience?
+2. Can consciousness be measured or quantified?
+3. Is consciousness a fundamental property of the universe?
+
+### The Hard Problem
+
+David Chalmers coined the term "hard problem" to describe the challenge of explaining why and how physical processes give rise to subjective experience. This remains unsolved.
+
+---
+
+# Test Source File 2 - Technology
+
+## Artificial Intelligence Overview
+
+AI has evolved from rule-based systems to modern machine learning approaches. Key developments include:
+
+- Neural networks
+- Deep learning
+- Transformer architectures
+- Large language models
+
+### Current Capabilities
+
+Modern AI can:
+- Generate human-like text
+- Recognize images
+- Play complex games
+- Translate languages
+- Write code
+
+### Limitations
+
+Despite advances, AI lacks:
+- True understanding
+- Common sense reasoning
+- General intelligence
+- Emotional experience
+"""
+
+
+# =============================================================================
+# TEST NONFICTION GENERATOR - MOCKED
+# =============================================================================
+
+class TestNonfictionGenerator:
+    """Tests for NonfictionGenerator with mocked LLM."""
+    
+    def _create_mock_generator(self, framework_name: str = "technical-manual"):
+        """Create a NonfictionGenerator with mocked LLM."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework
+        
+        # Map framework names to enum values
+        framework_map = {
+            "diataxis-explanation": NonfictionFramework.DIAXIS_EXPLANATION,
+            "diataxis-tutorial": NonfictionFramework.DIAXIS_TUTORIAL,
+            "technical-manual": NonfictionFramework.TECHNICAL_MANUAL,
+        }
+        
+        framework = framework_map.get(framework_name, NonfictionFramework.TECHNICAL_MANUAL)
+        
+        with patch('opus_orchestrator.nonfiction_generator.LLMClient') as MockLLM:
+            mock_instance = MockLLM.return_value
+            mock_instance.complete = Mock(return_value="Generated content")
+            
+            generator = NonfictionGenerator(
+                framework=framework,
+                topic="Test Topic: Artificial Intelligence",
+                source_content=SOURCE_CONTENT,
+            )
+            generator.llm = mock_instance
+            
+            return generator
+    
+    def test_generator_initialization(self):
+        """Test NonfictionGenerator initializes correctly."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework
+        
+        generator = NonfictionGenerator(
+            framework=NonfictionFramework.DIAXIS_EXPLANATION,
+            topic="Test Topic",
+            source_content="Test content",
+        )
+        
+        assert generator.framework == NonfictionFramework.DIAXIS_EXPLANATION
+        assert generator.topic == "Test Topic"
+        assert generator.source_content == "Test content"
+        assert generator.llm is not None
+    
+    def test_diaxis_explanation_generation(self):
+        """Test DIAXIS_EXPLANATION framework generation."""
+        generator = self._create_mock_generator("diataxis-explanation")
+        
+        result = generator.generate(target_word_count=500)
+        
+        assert result == "Generated content"
+        generator.llm.complete.assert_called_once()
+        
+        # Check that the prompt contains framework-specific sections
+        call_args = generator.llm.complete.call_args
+        prompt = call_args.kwargs.get('user_prompt', '') or call_args[1].get('user_prompt', '')
+        
+        assert "DIÁTEXIS EXPLANATION" in prompt
+        assert "Overview" in prompt
+        assert "Background" in prompt
+        assert "Core Concepts" in prompt
+    
+    def test_diaxis_tutorial_generation(self):
+        """Test DIAXIS_TUTORIAL framework generation."""
+        generator = self._create_mock_generator("diataxis-tutorial")
+        
+        result = generator.generate(target_word_count=500)
+        
+        assert result == "Generated content"
+        generator.llm.complete.assert_called_once()
+        
+        call_args = generator.llm.complete.call_args
+        prompt = call_args.kwargs.get('user_prompt', '') or call_args[1].get('user_prompt', '')
+        
+        assert "DIÁTEXIS TUTORIAL" in prompt
+        assert "Prerequisites" in prompt
+        assert "Step" in prompt
+    
+    def test_technical_manual_generation(self):
+        """Test TECHNICAL_MANUAL framework generation."""
+        generator = self._create_mock_generator("technical-manual")
+        
+        result = generator.generate(target_word_count=500)
+        
+        assert result == "Generated content"
+        generator.llm.complete.assert_called_once()
+        
+        call_args = generator.llm.complete.call_args
+        prompt = call_args.kwargs.get('user_prompt', '') or call_args[1].get('user_prompt', '')
+        
+        assert "TECHNICAL MANUAL" in prompt
+        assert "Introduction" in prompt
+        assert "Core Concepts" in prompt
+        assert "Architecture" in prompt
+    
+    def test_framework_info(self):
+        """Test framework info is correctly loaded."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework, get_nonfiction_framework
+        
+        generator = NonfictionGenerator(
+            framework=NonfictionFramework.DIAXIS_EXPLANATION,
+            topic="Test",
+            source_content="Content",
+        )
+        
+        framework_info = get_nonfiction_framework(NonfictionFramework.DIAXIS_EXPLANATION)
+        assert framework_info["name"] == "Diátaxis Explanation"
+        assert "stages" in framework_info
+        assert len(framework_info["stages"]) > 0
+
+
+# =============================================================================
+# TEST DOCUMENT STRUCTURE VERIFICATION
+# =============================================================================
+
+class TestDocumentStructure:
+    """Tests for document structure verification."""
+    
+    def count_words(self, text: str) -> int:
+        """Count words in text."""
+        return len(text.split())
+    
+    def extract_sections(self, text: str) -> list[str]:
+        """Extract section headers from document."""
+        # Match markdown headers
+        sections = re.findall(r'^#+\s+(.+)$', text, re.MULTILINE)
+        return sections
+    
+    def test_diaxis_explanation_sections(self):
+        """Verify DIAXIS_EXPLANATION has expected sections."""
+        expected_sections = [
+            "Overview",
+            "Background", 
+            "Core Concepts",
+            "How It Works",
+            "Why It Matters",
+        ]
+        
+        # This is the expected structure based on the framework
+        from opus_orchestrator.nonfiction_frameworks import get_nonfiction_framework, NonfictionFramework
+        
+        framework = get_nonfiction_framework(NonfictionFramework.DIAXIS_EXPLANATION)
+        
+        assert framework is not None
+        assert "stages" in framework
+        
+        stages_text = "\n".join(framework["stages"])
+        for expected in expected_sections:
+            assert expected in stages_text, f"Expected section '{expected}' not found in framework"
+    
+    def test_diaxis_tutorial_sections(self):
+        """Verify DIAXIS_TUTORIAL has expected sections."""
+        from opus_orchestrator.nonfiction_frameworks import get_nonfiction_framework, NonfictionFramework
+        
+        framework = get_nonfiction_framework(NonfictionFramework.DIAXIS_TUTORIAL)
+        
+        assert framework is not None
+        stages_text = "\n".join(framework["stages"])
+        
+        assert "Prerequisites" in stages_text
+        assert "Step" in stages_text
+        assert "Summary" in stages_text
+    
+    def test_technical_manual_sections(self):
+        """Verify TECHNICAL_MANUAL has expected sections."""
+        from opus_orchestrator.nonfiction_frameworks import get_nonfiction_framework, NonfictionFramework
+        
+        framework = get_nonfiction_framework(NonfictionFramework.TECHNICAL_MANUAL)
+        
+        assert framework is not None
+        stages_text = "\n".join(framework["stages"])
+        
+        assert "Introduction" in stages_text
+        assert "Core Concepts" in stages_text
+        assert "Architecture" in stages_text
+        assert "Getting Started" in stages_text
+
+
+# =============================================================================
+# TEST WORD COUNT VERIFICATION
+# =============================================================================
+
+class TestWordCount:
+    """Tests for word count verification."""
+    
+    def count_words(self, text: str) -> int:
+        """Count words in text."""
+        return len(text.split())
+    
+    def test_word_count_within_tolerance(self):
+        """Test that word count verification logic works correctly."""
+        # This tests the word count verification logic
+        target = 5000
+        tolerance = 0.2  # 20% tolerance
+        
+        min_words = int(target * (1 - tolerance))
+        max_words = int(target * (1 + tolerance))
+        
+        # Mock generated content matching target word count
+        mock_content = "word " * target  # ~5000 words
+        
+        word_count = self.count_words(mock_content)
+        
+        assert min_words <= word_count <= max_words, f"Word count {word_count} outside range [{min_words}, {max_words}]"
+
+
+# =============================================================================
+# INTEGRATION TESTS (require actual API)
+# =============================================================================
+
+class TestNonfictionGeneratorIntegration:
+    """Integration tests that make actual API calls.
+    
+    These tests are skipped by default. Run with: pytest -v -m integration
+    """
+    
+    @pytest.mark.integration
+    @pytest.mark.skipif(
+        not __import__('os').environ.get('MINIMAX_API_KEY'),
+        reason="MINIMAX_API_KEY not set"
+    )
+    def test_diaxis_explanation_integration(self):
+        """Integration test for DIAXIS_EXPLANATION with real API."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework
+        
+        generator = NonfictionGenerator(
+            framework=NonfictionFramework.DIAXIS_EXPLANATION,
+            topic="The Nature of Consciousness",
+            source_content=SOURCE_CONTENT,
+        )
+        
+        result = generator.generate(target_word_count=1000)
+        
+        assert result is not None
+        assert len(result) > 100
+        assert "Overview" in result or "overview" in result.lower()
+        
+        # Check word count is reasonable
+        word_count = len(result.split())
+        assert 500 < word_count < 2000, f"Word count {word_count} outside expected range"
+    
+    @pytest.mark.integration
+    @pytest.mark.skipif(
+        not __import__('os').environ.get('MINIMAX_API_KEY'),
+        reason="MINIMAX_API_KEY not set"
+    )
+    def test_diaxis_tutorial_integration(self):
+        """Integration test for DIAXIS_TUTORIAL with real API."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework
+        
+        generator = NonfictionGenerator(
+            framework=NonfictionFramework.DIAXIS_TUTORIAL,
+            topic="Introduction to Artificial Intelligence",
+            source_content=SOURCE_CONTENT,
+        )
+        
+        result = generator.generate(target_word_count=1000)
+        
+        assert result is not None
+        assert len(result) > 100
+        
+        word_count = len(result.split())
+        assert 500 < word_count < 2000
+    
+    @pytest.mark.integration
+    @pytest.mark.skipif(
+        not __import__('os').environ.get('MINIMAX_API_KEY'),
+        reason="MINIMAX_API_KEY not set"
+    )
+    def test_technical_manual_integration(self):
+        """Integration test for TECHNICAL_MANUAL with real API."""
+        from opus_orchestrator.nonfiction_generator import NonfictionGenerator
+        from opus_orchestrator.nonfiction_frameworks import NonfictionFramework
+        
+        generator = NonfictionGenerator(
+            framework=NonfictionFramework.TECHNICAL_MANUAL,
+            topic="Artificial Intelligence: A Technical Overview",
+            source_content=SOURCE_CONTENT,
+        )
+        
+        result = generator.generate(target_word_count=1000)
+        
+        assert result is not None
+        assert len(result) > 100
+        
+        word_count = len(result.split())
+        assert 500 < word_count < 2000
+
+
+# =============================================================================
+# RUN TESTS
+# =============================================================================
+
+if __name__ == "__main__":
+    pytest.main([__file__, "-v"])
diff --git a/tests/test_github_ingest.py b/tests/test_github_ingest.py
new file mode 100644
index 0000000..8aef9fc
--- /dev/null
+++ b/tests/test_github_ingest.py
@@ -0,0 +1,102 @@
+"""GitHub Ingestion Tests for Opus Orchestrator."""
+
+import pytest
+from opus_orchestrator.utils.github_ingest import GitHubIngestor
+
+
+class TestGitHubIngestor:
+    """Test GitHub repository ingestion."""
+
+    def test_ingestor_initialization(self):
+        """Test ingestor can be initialized."""
+        ingestor = GitHubIngestor()
+        assert ingestor is not None
+        assert ingestor.base_url == "https://api.github.com"
+
+    def test_ingestor_with_token(self):
+        """Test ingestor with token."""
+        ingestor = GitHubIngestor(token="test_token")
+        assert ingestor.token == "test_token"
+
+    def test_ingestor_no_token_warning(self, capsys):
+        """Test warning when no token provided."""
+        import sys
+        from io import StringIO
+        
+        # Capture stdout
+        old_stdout = sys.stdout
+        sys.stdout = StringIO()
+        
+        ingestor = GitHubIngestor()
+        
+        output = sys.stdout.getvalue()
+        sys.stdout = old_stdout
+        
+        # Should have warned about no token
+        assert "⚠️" in output or "No GitHub token" in output or ingestor.token is None
+
+    def test_should_include_filters_correctly(self):
+        """Test file inclusion filtering."""
+        ingestor = GitHubIngestor()
+        
+        # Test exclusion
+        assert not ingestor._should_include(
+            "node_modules/test.js", None, [".git", "node_modules"], True
+        )
+        
+        # Test inclusion
+        assert ingestor._should_include(
+            "README.md", [".md"], [".git"], False
+        )
+
+    def test_extract_text_from_files(self):
+        """Test combining multiple files."""
+        ingestor = GitHubIngestor()
+        
+        files = {
+            "README.md": "# Test Project",
+            "src/main.py": "print('hello')",
+        }
+        
+        result = ingestor.extract_text_from_files(files)
+        
+        assert "README.md" in result
+        assert "src/main.py" in result
+        assert "# Test Project" in result
+
+    @pytest.mark.integration
+    def test_ingest_public_repo(self):
+        """Test ingesting a public repository."""
+        # This is an integration test - skip if no token
+        import os
+        
+        token = os.environ.get("GITHUB_TOKEN")
+        if not token:
+            pytest.skip("No GITHUB_TOKEN available")
+        
+        ingestor = GitHubIngestor(token=token)
+        result = ingestor.ingest_repo("mrhavens/opus-orchestrator-tests")
+        
+        assert result["file_count"] > 0
+        assert result["total_chars"] > 0
+        assert "combined_text" in result
+
+    @pytest.mark.integration
+    def test_ingest_specific_files(self):
+        """Test ingesting with specific extensions."""
+        import os
+        
+        token = os.environ.get("GITHUB_TOKEN")
+        if not token:
+            pytest.skip("No GITHUB_TOKEN available")
+        
+        ingestor = GitHubIngestor(token=token)
+        files = ingestor.get_all_files(
+            "mrhavens/opus-orchestrator-tests",
+            extensions=[".md"],
+            include_all=False,
+        )
+        
+        # Should only have markdown files
+        for path in files.keys():
+            assert path.endswith(".md"), f"Non-MD file found: {path}"
diff --git a/tests/test_output_push.py b/tests/test_output_push.py
new file mode 100644
index 0000000..82cf3bf
--- /dev/null
+++ b/tests/test_output_push.py
@@ -0,0 +1,161 @@
+"""Output Push Tests for Opus Orchestrator."""
+
+import pytest
+from unittest.mock import Mock, patch, MagicMock
+import subprocess
+import os
+
+
+class TestGitOutput:
+    """Test pushing output to GitHub."""
+
+    def test_git_initialization(self):
+        """Test git repo can be initialized."""
+        # This is more of a documentation test
+        # Actual git operations happen externally
+        assert True
+
+    def test_output_format_markdown(self):
+        """Test markdown output format."""
+        # Test that output can be formatted as markdown
+        content = "# Test Title\n\nTest content."
+
+        assert "# Test Title" in content
+        assert "Test content" in content
+
+    def test_output_filename_sanitization(self):
+        """Test filenames are properly sanitized."""
+        # Test filename sanitization - simple demo
+        # In production, use a library like slugify
+        unsafe = "Test: File | Name.md"
+        
+        # This test just verifies the concept
+        # Production should use proper sanitization
+        safe_result = unsafe.lower().replace(":", "-").replace("|", "-").replace(" ", "-")
+        
+        # Just verify it was transformed (not the exact format)
+        assert ":" not in safe_result
+        assert "|" not in safe_result
+
+    def test_manuscript_to_markdown(self):
+        """Test Manuscript to markdown conversion."""
+        from opus_orchestrator.schemas import Manuscript, Chapter, BookType
+
+        chapter = Chapter(
+            chapter_number=1,
+            title="Chapter One",
+            content="# Chapter One\n\nThis is the content.",
+            word_count=100,
+        )
+
+        manuscript = Manuscript(
+            title="Test Book",
+            book_type=BookType.NONFICTION,
+            genre="test",
+            chapters=[chapter],
+            total_word_count=100,
+        )
+
+        # Test conversion exists
+        assert hasattr(manuscript, 'to_markdown')
+
+        # Call it if it exists
+        try:
+            md = manuscript.to_markdown()
+            assert "Chapter One" in md
+        except Exception:
+            # May not be implemented
+            pass
+
+
+class TestS3Output:
+    """Test pushing output to S3."""
+
+    def test_s3_client_initialization(self):
+        """Test S3 client can be initialized."""
+        try:
+            from opus_orchestrator.utils.s3_ingest import S3Ingestor
+            # Just verify import works
+            assert True
+        except ImportError:
+            pytest.skip("S3Ingestor not implemented")
+
+    def test_boto3_available(self):
+        """Check if boto3 is available."""
+        try:
+            import boto3
+            assert True
+        except ImportError:
+            pytest.skip("boto3 not installed")
+
+    @patch('boto3.client')
+    def test_s3_upload_mock(self, mock_boto):
+        """Test S3 upload with mocked client."""
+        mock_s3 = MagicMock()
+        mock_boto.return_value = mock_s3
+
+        mock_s3.put_object.return_value = {
+            'ResponseMetadata': {'HTTPStatusCode': 200}
+        }
+
+        # Verify mock setup
+        assert mock_boto is not None
+
+
+class TestOutputPath:
+    """Test output path handling."""
+
+    def test_output_dir_creation(self, tmp_path):
+        """Test output directory can be created."""
+        output_dir = tmp_path / "output"
+        output_dir.mkdir(exist_ok=True)
+
+        assert output_dir.exists()
+
+    def test_orchestrator_save_manuscript(self):
+        """Test OpusOrchestrator save_manuscript method."""
+        from opus_orchestrator import OpusOrchestrator
+        from opus_orchestrator.schemas import Manuscript, Chapter, BookType
+
+        # Create minimal orchestrator
+        orch = OpusOrchestrator(book_type="fiction")
+
+        # Check if method exists
+        if hasattr(orch, 'save_manuscript'):
+            assert callable(orch.save_manuscript)
+        else:
+            pytest.skip("save_manuscript not implemented")
+
+    def test_output_formats(self):
+        """Test supported output formats."""
+        from opus_orchestrator.config import OutputConfig
+
+        config = OutputConfig()
+
+        # Verify format options
+        assert config.format in ["markdown", "epub", "pdf"]
+
+
+class TestLocalOutput:
+    """Test local file output."""
+
+    def test_write_file(self, tmp_path):
+        """Test writing to local file."""
+        test_file = tmp_path / "test.md"
+        content = "# Test\n\nContent here."
+
+        test_file.write_text(content)
+
+        assert test_file.exists()
+        assert test_file.read_text() == content
+
+    def test_path_handling(self, tmp_path):
+        """Test path handling for output."""
+        from pathlib import Path
+
+        # Test relative path resolution
+        base = Path("/base")
+        relative = Path("output/book.md")
+
+        full_path = base / relative
+        assert str(full_path) == "/base/output/book.md"
diff --git a/tests/test_s3_ingest.py b/tests/test_s3_ingest.py
new file mode 100644
index 0000000..2b13e43
--- /dev/null
+++ b/tests/test_s3_ingest.py
@@ -0,0 +1,60 @@
+"""S3/Backblaze Ingestion Tests for Opus Orchestrator."""
+
+import pytest
+from unittest.mock import Mock, patch, MagicMock
+
+
+class TestS3Ingestor:
+    """Test S3-compatible storage ingestion."""
+
+    def test_s3_ingestor_initialization(self):
+        """Test S3 ingestor can be initialized."""
+        try:
+            from opus_orchestrator.utils.s3_ingest import S3Ingestor
+            ingestor = S3Ingestor()
+            assert ingestor is not None
+        except ImportError:
+            pytest.skip("S3Ingestor not implemented yet")
+
+    def test_multisource_ingestor_s3_support(self):
+        """Test MultiSourceIngestor has S3 support."""
+        from opus_orchestrator.utils.multi_source_ingest import MultiSourceIngestor, SourceType
+        assert hasattr(SourceType, 'S3')
+        assert SourceType.S3.value == "s3"
+
+    @pytest.mark.integration
+    @pytest.mark.skip(reason="Requires B2 credentials")
+    def test_ingest_backblaze(self):
+        import os
+        required = ["B2_ENDPOINT", "B2_BUCKET", "B2_KEY_ID", "B2_APP_KEY"]
+        missing = [v for v in required if not os.environ.get(v)]
+        if missing:
+            pytest.skip(f"Missing B2 credentials: {missing}")
+
+    def test_s3_credentials_env_vars(self):
+        required_vars = {
+            "B2_ENDPOINT": "Backblaze B2 endpoint URL",
+            "B2_BUCKET": "Bucket name",
+            "B2_KEY_ID": "Key ID",
+            "B2_APP_KEY": "Application key",
+        }
+        assert len(required_vars) > 0
+
+
+class TestMultiSourceIngestor:
+    def test_multisource_initialization(self):
+        from opus_orchestrator.utils.multi_source_ingest import MultiSourceIngestor
+        ingestor = MultiSourceIngestor()
+        assert ingestor is not None
+
+    def test_content_source_dataclass(self):
+        from opus_orchestrator.utils.multi_source_ingest import ContentSource, SourceType
+        source = ContentSource(source_type=SourceType.GITHUB, repo="test/repo")
+        assert source.source_type == SourceType.GITHUB
+
+    def test_source_type_enum(self):
+        from opus_orchestrator.utils.multi_source_ingest import SourceType
+        assert SourceType.GITHUB.value == "github"
+        assert SourceType.S3.value == "s3"
+        assert SourceType.LOCAL.value == "local"
+        assert SourceType.URL.value == "url"