From 4914e7ac8702140e45b24c50236b3284adda73d0 Mon Sep 17 00:00:00 2001
From: 7000pctAUTO <lukems3823@gmail.com>
Date: Sun, 1 Feb 2026 03:56:34 +0000
Subject: [PATCH] Initial upload: ErrorFix CLI with rule engine and pattern
 matching

---
 tests/unit/test_formatters.py | 95 +++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 tests/unit/test_formatters.py

diff --git a/tests/unit/test_formatters.py b/tests/unit/test_formatters.py
new file mode 100644
index 0000000..c48ba61
--- /dev/null
+++ b/tests/unit/test_formatters.py
@@ -0,0 +1,95 @@
+import pytest
+from io import StringIO
+from errorfix.formatters import TextFormatter, JSONFormatter
+from errorfix.patterns import MatchResult
+from errorfix.rules import Rule
+
+
+class TestTextFormatter:
+    def test_format_single_match(self):
+        rule = Rule(
+            id='test-rule',
+            name='Test Rule',
+            pattern='TestError: .*',
+            fix='Fix it',
+            description='A test rule',
+        )
+        result = MatchResult(
+            rule=rule,
+            matched_text='TestError: something',
+            groups={'message': 'something'},
+        )
+        formatter = TextFormatter(use_colors=False)
+        output = formatter.format([result], 'TestError: something')
+        assert 'Test Rule' in output
+        assert 'Fix it' in output
+        assert 'something' in output
+
+    def test_format_no_match(self):
+        formatter = TextFormatter(use_colors=False)
+        output = formatter.format([], 'Unknown error')
+        assert 'No matching rules found' in output
+
+    def test_write_to_stream(self):
+        rule = Rule(
+            id='test-rule',
+            name='Test Rule',
+            pattern='TestError: .*',
+            fix='Fix it',
+            description='A test rule',
+        )
+        result = MatchResult(rule=rule, matched_text='TestError: test')
+        formatter = TextFormatter(use_colors=False)
+        output = StringIO()
+        formatter.write([result], 'TestError: test', output)
+        assert 'Test Rule' in output.getvalue()
+
+
+class TestJSONFormatter:
+    def test_format_single_match(self):
+        rule = Rule(
+            id='test-rule',
+            name='Test Rule',
+            pattern='TestError: .*',
+            fix='Fix it',
+            description='A test rule',
+        )
+        result = MatchResult(
+            rule=rule,
+            matched_text='TestError: something',
+            groups={'message': 'something'},
+        )
+        formatter = JSONFormatter(pretty=True)
+        output = formatter.format([result], 'TestError: something')
+        assert 'Test Rule' in output
+        assert '"suggested_fix"' in output
+        assert 'something' in output
+
+    def test_format_no_match(self):
+        formatter = JSONFormatter(pretty=True)
+        output = formatter.format([], 'Unknown error')
+        assert '"match_count": 0' in output
+
+    def test_pretty_output(self):
+        formatter = JSONFormatter(pretty=True)
+        rule = Rule(
+            id='test-rule',
+            name='Test Rule',
+            pattern='TestError: .*',
+            fix='Fix it',
+            description='A test rule',
+        )
+        result = MatchResult(rule=rule, matched_text='TestError: test')
+        output = formatter.format([result], 'TestError: test')
+        assert '\n' in output
+
+    def test_compact_output(self):
+        formatter = JSONFormatter(pretty=False)
+        rule = Rule(
+            id='test-rule',
+            name='Test Rule',
+            description='A test rule',
+        )
+        result = MatchResult(rule=rule, matched_text='TestError: test')
+        output = formatter.format([result], 'TestError: test')
+        assert '\n' not in output