From 4a57e9991095d4e211a72982a3457c4a51f0468c Mon Sep 17 00:00:00 2001
From: Felipe Castro <146021799+castroofelipee@users.noreply.github.com>
Date: Sun, 17 Aug 2025 11:03:57 -0300
Subject: [PATCH 1/3] create validator for env variables

---
 src/venvalid/validator.py |  7 +++++++
 tests/test_validator.py   | 15 +++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 src/venvalid/validator.py
 create mode 100644 tests/test_validator.py

diff --git a/src/venvalid/validator.py b/src/venvalid/validator.py
new file mode 100644
index 0000000..9487c58
--- /dev/null
+++ b/src/venvalid/validator.py
@@ -0,0 +1,7 @@
+from .errors import EnvSafeError
+
+
+def validate_env_var(name: str, value: str | None):
+    if not value:
+        raise EnvSafeError(f"Missing required environment variable: {name}")
+    return True
diff --git a/tests/test_validator.py b/tests/test_validator.py
new file mode 100644
index 0000000..256e2aa
--- /dev/null
+++ b/tests/test_validator.py
@@ -0,0 +1,15 @@
+import pytest
+
+from src.venvalid.errors import EnvSafeError
+from src.venvalid.validator import validate_env_var
+
+
+def test_validate_env_var_success():
+    assert validate_env_var("API_KEY", "secret") is True
+
+
+def test_validate_env_var_missing():
+    with pytest.raises(EnvSafeError) as exc_info:
+        validate_env_var("API_KEY", None)
+
+    assert "Missing required environment variable: API_KEY" in str(exc_info.value)

From 461155bd32c78649ff38f91bac21f48ae65e1d47 Mon Sep 17 00:00:00 2001
From: Felipe Castro <146021799+castroofelipee@users.noreply.github.com>
Date: Sun, 17 Aug 2025 11:04:42 -0300
Subject: [PATCH 2/3] add util helper to pretty type errors

---
 src/venvalid/utils_errors.py |  9 ++++++++
 tests/test_utils_errors.py   | 40 ++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 src/venvalid/utils_errors.py
 create mode 100644 tests/test_utils_errors.py

diff --git a/src/venvalid/utils_errors.py b/src/venvalid/utils_errors.py
new file mode 100644
index 0000000..3dd0c78
--- /dev/null
+++ b/src/venvalid/utils_errors.py
@@ -0,0 +1,9 @@
+def pretty_print_error(error: Exception) -> None:
+    """Pretty print errors using rich if available, else fallback to plain text"""
+    try:
+        from rich.console import Console
+
+        console = Console()
+        console.print(f"[bold red]Error:[/bold red] {error}")
+    except ImportError:
+        print(f"Error: {error}")
diff --git a/tests/test_utils_errors.py b/tests/test_utils_errors.py
new file mode 100644
index 0000000..6325aeb
--- /dev/null
+++ b/tests/test_utils_errors.py
@@ -0,0 +1,40 @@
+import sys
+import types
+
+import src.venvalid.utils_errors as utils_errors
+
+
+class DummyConsole:
+    def __init__(self):
+        self.last_message = None
+
+    def print(self, msg):
+        self.last_message = msg
+
+
+def test_pretty_print_error_with_rich(monkeypatch):
+    dummy_console = DummyConsole()
+
+    fake_rich_pkg = types.ModuleType("rich")
+    fake_rich_pkg.__path__ = []  # mark as package
+
+    fake_console_mod = types.ModuleType("rich.console")
+    setattr(fake_console_mod, "Console", lambda: dummy_console)
+
+    monkeypatch.setitem(sys.modules, "rich", fake_rich_pkg)
+    monkeypatch.setitem(sys.modules, "rich.console", fake_console_mod)
+
+    utils_errors.pretty_print_error(ValueError("boom"))
+
+    assert dummy_console.last_message is not None
+    assert "boom" in dummy_console.last_message
+
+
+def test_pretty_print_error_without_rich(monkeypatch, capsys):
+    monkeypatch.delitem(sys.modules, "rich.console", raising=False)
+    monkeypatch.delitem(sys.modules, "rich", raising=False)
+
+    utils_errors.pretty_print_error(ValueError("fail"))
+
+    out = capsys.readouterr().out
+    assert "Error: fail" in out

From 3c4024d25d762a5bf27c1b6c7f26adf759c4f3bb Mon Sep 17 00:00:00 2001
From: Felipe Castro <146021799+castroofelipee@users.noreply.github.com>
Date: Sun, 17 Aug 2025 11:21:55 -0300
Subject: [PATCH 3/3] fix relative paths

---
 src/venvalid/validator.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/venvalid/validator.py b/src/venvalid/validator.py
index 9487c58..b5aaa77 100644
--- a/src/venvalid/validator.py
+++ b/src/venvalid/validator.py
@@ -1,4 +1,4 @@
-from .errors import EnvSafeError
+from src.venvalid.errors import EnvSafeError
 
 
 def validate_env_var(name: str, value: str | None):