From f15fac33627952ccf5d85a8c363b6d829c03b90d Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Mon, 11 Apr 2022 15:24:31 +0300
Subject: Add tests for headers

* Add tests to check for validity of the headers
* Add stubs for the tests
---
 quality_control/errors.py  | 11 ++++++++---
 quality_control/headers.py |  7 +++++++
 2 files changed, 15 insertions(+), 3 deletions(-)
 create mode 100644 quality_control/headers.py

(limited to 'quality_control')

diff --git a/quality_control/errors.py b/quality_control/errors.py
index 961ce8e..a77039b 100644
--- a/quality_control/errors.py
+++ b/quality_control/errors.py
@@ -3,6 +3,11 @@
 class InvalidValue(Exception):
     """Raised when a function encounters an invalid value"""
 
-    def __init__(self, args):
-        Exception.__init__(self, args)
-        
+    def __init__(self, *args):
+        Exception.__init__(self, *args)
+
+class InvalidHeaderValue(Exception):
+    """Raised when a header contains values not in the reference file."""
+
+    def __init__(self, *args):
+        Exception.__init__(self, *args)
diff --git a/quality_control/headers.py b/quality_control/headers.py
new file mode 100644
index 0000000..b8ff160
--- /dev/null
+++ b/quality_control/headers.py
@@ -0,0 +1,7 @@
+"""Validate the headers"""
+
+from quality_control.errors import InvalidHeaderValue
+
+def valid_header(strains, headers):
+    "Return the valid headers with reference to strains or throw an error"
+    return None
-- 
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