Add exporters, utils, and tests

.tests/test_ascii.py

@@ -0,0 +1,78 @@
+"""Tests for ASCII generator."""
+
+import pytest
+
+from termflow.exporters.ascii_generator import ASCIIGenerator, GitGraphGenerator
+
+
+class TestASCIIGenerator:
+    """Test ASCII generator."""
+
+    def test_generate_empty(self):
+        """Test generating empty diagram."""
+        gen = ASCIIGenerator()
+        result = gen.generate_from_commands([])
+        assert result is not None
+
+    def test_generate_single_command(self):
+        """Test generating diagram with single command."""
+        gen = ASCIIGenerator()
+        result = gen.generate_from_commands(["ls -la"])
+        assert "ls -la" in result
+
+    def test_generate_multiple_commands(self):
+        """Test generating diagram with multiple commands."""
+        gen = ASCIIGenerator()
+        commands = ["ls -la", "cd /tmp", "pwd"]
+        result = gen.generate_from_commands(commands)
+        for cmd in commands:
+            assert cmd in result
+
+    def test_different_styles(self):
+        """Test different visualization styles."""
+        commands = ["ls -la", "cd /tmp", "pwd"]
+
+        for style in ["compact", "detailed", "minimal"]:
+            gen = ASCIIGenerator(style=style)
+            result = gen.generate_from_commands(commands, {"title": "Test"})
+            assert result is not None
+
+    def test_with_metadata(self):
+        """Test generating with metadata."""
+        gen = ASCIIGenerator()
+        commands = ["ls -la", "cd /tmp"]
+        metadata = {"title": "Test Session", "command_count": len(commands)}
+        result = gen.generate_from_commands(commands, metadata)
+        assert "Test Session" in result
+        assert str(len(commands)) in result
+
+
+class TestGitGraphGenerator:
+    """Test git graph generator."""
+
+    def test_generate_empty(self):
+        """Test generating empty graph."""
+        gen = GitGraphGenerator()
+
+        class MockParser:
+            commits = []
+
+        result = gen.generate_from_parser(MockParser())
+        assert result is not None
+
+    def test_generate_with_commits(self):
+        """Test generating graph with commits."""
+        gen = GitGraphGenerator()
+
+        class MockCommit:
+            def __init__(self, hash, message):
+                self.hash = hash
+                self.message = message
+                self.parents = []
+
+        class MockParser:
+            commits = [MockCommit("abc123", "Initial commit"), MockCommit("def456", "Add feature")]
+
+        result = gen.generate_from_parser(MockParser())
+        assert "abc123" in result
+        assert "def456" in result