diff --git a/app/tests/test_parsers.py b/app/tests/test_parsers.py
new file mode 100644
index 0000000..6a4e859
--- /dev/null
+++ b/app/tests/test_parsers.py
@@ -0,0 +1,72 @@
+import pytest
+from cmdparse.parser import parse_table, parse_key_value, parse_delimited, parse_raw, parse_text
+
+
+def test_parse_table_with_pipes():
+    """Test parsing table with pipe separators."""
+    text = "| Name | Age | City |\n| Alice | 30 | NYC |\n| Bob | 25 | LA |"
+    result = parse_table(text)
+    assert len(result) == 2
+    assert result[0]['Name'] == 'Alice'
+    assert result[1]['Name'] == 'Bob'
+
+
+def test_parse_table_without_pipes():
+    """Test parsing table without pipe separators."""
+    text = "Name Age City\nAlice 30 NYC\nBob 25 LA"
+    result = parse_table(text)
+    assert len(result) == 2
+    assert result[0]['Name'] == 'Alice'
+
+
+def test_parse_key_value_colon():
+    """Test parsing key-value with colon delimiter."""
+    text = "key1: value1\nkey2: value2"
+    result = parse_key_value(text, ':')
+    assert len(result) == 1
+    assert result[0]['key1'] == 'value1'
+
+
+def test_parse_key_value_equals():
+    """Test parsing key-value with equals delimiter."""
+    text = "key1=value1\nkey2=value2"
+    result = parse_key_value(text, '=')
+    assert len(result) == 1
+    assert result[0]['key1'] == 'value1'
+
+
+def test_parse_delimited_comma():
+    """Test parsing comma-delimited text."""
+    text = "name,age,city\nalice,30,nyc\nbob,25,la"
+    result = parse_delimited(text, ',')
+    assert len(result) == 2
+    assert result[0]['name'] == 'alice'
+
+
+def test_parse_raw():
+    """Test parsing raw text."""
+    text = "line1\nline2\nline3"
+    result = parse_raw(text)
+    assert len(result) == 3
+    assert result[0]['content'] == 'line1'
+
+
+def test_parse_text_auto_detect_table():
+    """Test auto-detection of table format."""
+    text = "| Header |\n| Value |"
+    data, detected = parse_text(text)
+    assert detected == 'table'
+
+
+def test_parse_text_auto_detect_key_value():
+    """Test auto-detection of key-value format."""
+    text = "key: value"
+    data, detected = parse_text(text)
+    assert detected in ('key_value_colon', 'key_value_block')
+
+
+def test_parse_text_empty_input():
+    """Test handling of empty input."""
+    data, detected = parse_text("")
+    assert data == []
+    assert detected == 'empty'