[Resistor Color Expert]: Corrected Small Typos (#3469)

* Corrected small typos around resistor bands.

* Due to failing CI, alterations to the test generator script were needed.
The generated vs submitted diff now skips the first three lines of the file
so that the generation date is not picked up and flagged as needing regeneration.

Sadly, a workaround was also needed to prevent Python difflib from noting the difference
anyways and producing an empty "false positive" diff.

All templates and test files also needed to be altered to ensure that the first three
lines of every test file will always be the autogeneration comment and date.

Hopefully, this will now stop the CI failures without creating any subtle additional bugs.

* Touch up to bowling template.  Added back the error raising utility.
* Touch up to two-bucket template to add back in error raising utility.
[no important files changed]

bin/generate_tests.py

@@ -261,6 +261,19 @@ def format_file(path: Path) -> NoReturn:
 
 
 def check_template(slug: str, tests_path: Path, tmpfile: Path):
+    """Generate a new test file and diff against existing file.
+
+    Note:  The timestamp in each test file creates issues with
+           Python difflib, so it is skipped when being prepped
+           for diff.
+
+           You can see this "skipping" on lines 281 & 283.
+           However, this rather crude method creates
+           an empty "false positive" diff.  This empty diff is
+           then skipped in lines 293 & 294, so that it can be
+           considered a pass..
+    """
+
     try:
         check_ok = True
         if not tmpfile.is_file():
@@ -271,24 +284,25 @@ def check_template(slug: str, tests_path: Path, tmpfile: Path):
             check_ok = False
         if check_ok and not filecmp.cmp(tmpfile, tests_path):
             with tests_path.open() as f:
-                for line in range(4):
-                    next(f)
-                current_lines = f.readlines()
+                current_lines = f.readlines()[3:]
             with tmpfile.open() as f:
-                for line in range(4):
-                    next(f)
-                rendered_lines = f.readlines()
-            diff = difflib.unified_diff(
+                rendered_lines = f.readlines()[3:]
+
+            diff = list(difflib.unified_diff(
                 current_lines,
                 rendered_lines,
                 fromfile=f"[current] {tests_path.name}",
                 tofile=f"[generated] {tmpfile.name}",
-            )
-            logger.debug(f"{slug}: ##### DIFF START #####")
-            for line in diff:
-                logger.debug(line.strip())
-            logger.debug(f"{slug}: ##### DIFF END #####")
-            check_ok = False
+                lineterm="\n",
+            ))
+            if not diff:
+                check_ok = True
+            else:
+                logger.debug(f"{slug}: ##### DIFF START #####")
+                for line in diff:
+                    logger.debug(line.strip())
+                logger.debug(f"{slug}: ##### DIFF END #####")
+                check_ok = False
         if not check_ok:
             logger.error(
                 f"{slug}: check failed; tests must be regenerated with bin/generate_tests.py"

config/complexnumbers_template.j2

@@ -0,0 +1,31 @@
+{%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+import math
+{{ macros.header(imports=imports, ignore=ignore) }}
+
+{%- macro test_cases_recursive(cases) -%}
+{% for case in cases -%}
+{% if "cases" in case %}
+    # {{ case["description"] }}
+    {{ test_cases_recursive(case["cases"]) }}
+{% else %}
+    {{ test_case(case) }}
+{% endif -%}
+{% endfor -%}
+{% endmacro %}
+
+{% if not additional_tests -%}
+{%- macro additional_tests() -%}
+    {{ test_cases_recursive(additional_cases) }}
+{% endmacro %}
+{%- endif %}
+
+class {{ exercise | camel_case }}Test(unittest.TestCase):
+    {{ test_cases_recursive(cases) }}
+
+    {% if additional_cases | length -%}
+    # Additional tests for this track
+    {{ additional_tests() }}
+    {%- endif %}
+

config/generator_macros.j2

@@ -16,7 +16,6 @@
 {%- endmacro %}
 
 {% macro header(imports=[], ignore=[]) -%}
-{{ canonical_ref() }}
 
 import unittest
 
@@ -38,14 +37,6 @@ from {{ exercise | to_snake }} import ({% if imports -%}
         return self.assertRaisesRegex(exception, r".+")
 {%- endmacro %}
 
-{% macro footer(_has_error_case) -%}
-{% if has_error_case or _has_error_case %}
-{{ utility() }}
-{% endif %}
-if __name__ == '__main__':
-    unittest.main()
-{%- endmacro %}
-
 {% macro empty_set(set, list, class_name) -%}
 {%- if list|length > 0 -%}
 {{ set }} = {{ class_name }}({{ list }})

config/master_template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header(imports=imports, ignore=ignore) }}
 
 {%- macro test_cases_recursive(cases) -%}
@@ -25,4 +27,3 @@ class {{ exercise | camel_case }}Test(unittest.TestCase):
     # Additional tests for this track
     {{ additional_tests() }}
     {%- endif %}
-{{ macros.footer() }}

exercises/practice/acronym/.meta/template.j2

@@ -1,4 +1,7 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+{{ macros.header()}}
 
 {% macro test_case(case) -%}
     {%- set input = case["input"] -%}
@@ -8,7 +11,7 @@
             "{{ case["expected"] }}"
         )
 {%- endmacro %}
-{{ macros.header()}}
+
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for case in cases %}

exercises/practice/acronym/acronym_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/acronym/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/affine-cipher/.meta/template.j2

@@ -1,4 +1,7 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+{{ macros.header()}}
 
 {% macro test_supercase(supercase) %}
 {% for case in supercase["cases"] -%}
@@ -25,8 +28,6 @@ def test_{{ case["description"] | to_snake }}(self):
     {% endif -%}
 {%- endmacro %}
 
-{{ macros.header() }}
-
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for supercase in cases -%}
     {{ test_supercase(supercase) }}

exercises/practice/affine-cipher/affine_cipher_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/affine-cipher/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/all-your-base/.meta/template.j2

@@ -1,4 +1,7 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+{{ macros.header()}}
 
 {%- macro func_call(case) -%}
     {{ case["property"] }}(
@@ -22,8 +25,6 @@
     {%- endif %}
 {% endmacro %}
 
-{{ macros.header() }}
-
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for case in cases -%}
     {{ test_case(case) }}

exercises/practice/all-your-base/all_your_base_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/all-your-base/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/allergies/.meta/template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header(imports=[ exercise | camel_case ]) }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):

exercises/practice/allergies/allergies_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/allergies/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/alphametics/.meta/template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header() }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):

exercises/practice/alphametics/alphametics_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/alphametics/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/anagram/.meta/template.j2

@@ -1,4 +1,5 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
 
 {{ macros.header() }}
 

exercises/practice/anagram/anagram_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/anagram/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/armstrong-numbers/.meta/template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header() }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):

exercises/practice/armstrong-numbers/armstrong_numbers_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/armstrong-numbers/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/atbash-cipher/.meta/template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header() }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):

exercises/practice/atbash-cipher/atbash_cipher_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/atbash-cipher/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/bank-account/.meta/template.j2

@@ -1,4 +1,7 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+{{ macros.header(["BankAccount"]) }}
 {% macro test_case(case) -%}
     def test_{{ case["description"] | to_snake }}(self):
         account = BankAccount()
@@ -36,7 +39,6 @@
             {%- endif  %}
 {% endmacro %}
 
-{{ macros.header(["BankAccount"]) }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for case in cases -%}

exercises/practice/bank-account/bank_account_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/bank-account/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/beer-song/.meta/template.j2

@@ -1,4 +1,6 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header() }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):

exercises/practice/beer-song/beer_song_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/beer-song/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/binary-search-tree/.meta/template.j2

@@ -1,6 +1,9 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
 
-{%- macro build_tree(tree_obj) -%}
+{{ macros.header (imports=["BinarySearchTree", "TreeNode"]) }}
+
+{% macro build_tree(tree_obj) %}
 {%- if tree_obj is none -%}
 None
 {%- else -%}
@@ -25,8 +28,6 @@ TreeNode("{{ tree_obj["data"] }}",
         self.{{ assertion }}(BinarySearchTree({{ tree_data }}).{{ prop | to_snake }}(),expected)
 {%- endmacro -%}
 
-{{ macros.header (imports=["BinarySearchTree", "TreeNode"]) }}
-
 class {{ exercise | camel_case }}Test(unittest.TestCase):
 {%- for case in cases %}
     {%- if "cases" in case %}

exercises/practice/binary-search-tree/binary_search_tree_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/binary-search-tree/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/binary-search/.meta/template.j2

@@ -1,13 +1,15 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
+{{ macros.header() }}
 
 {%- macro test_call(case) %}
             {{ case["property"] }}(
                 {{ case["input"]["array"] }},
                 {{ case["input"]["value"] }}
             )
-{% endmacro -%}
+{% endmacro %}
 
-{{ macros.header() }}
 
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for case in cases -%}

exercises/practice/binary-search/binary_search_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/binary-search/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest
 

exercises/practice/bob/.meta/template.j2

@@ -1,6 +1,9 @@
 {%- import "generator_macros.j2" as macros with context -%}
+{{ macros.canonical_ref() }}
+
 {{ macros.header() }}
 
+
 class {{ exercise | camel_case }}Test(unittest.TestCase):
     {% for case in cases %}
     def test_{{ case["description"] | to_snake }}(self):

exercises/practice/bob/bob_test.py

@@ -1,6 +1,6 @@
 # These tests are auto-generated with test data from:
 # https://github.com/exercism/problem-specifications/tree/main/exercises/bob/canonical-data.json
-# File last updated on 2023-07-16
+# File last updated on 2023-07-20
 
 import unittest