Sync isogram tests (#540)

Author: keiravillekode

exercises/practice/isogram/.meta/spec_generator.lua

@@ -0,0 +1,9 @@
+return {
+  module_name = 'is_isogram',
+
+  generate_test = function(case)
+    local template = [[
+      assert.is_%s(is_isogram('%s'))]]
+    return template:format(case.expected, case.input.phrase)
+  end
+}

exercises/practice/isogram/.meta/tests.toml

@@ -1,6 +1,13 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
 
 [a0e97d2d-669e-47c7-8134-518a1e2c4555]
 description = "empty string"
@@ -40,3 +47,6 @@ description = "duplicated character in the middle"
 
 [310ac53d-8932-47bc-bbb4-b2b94f25a83e]
 description = "same first and last characters"
+
+[0d0b8644-0a1e-4a31-a432-2b3ee270d847]
+description = "word with duplicated character and with two hyphens"

exercises/practice/isogram/isogram_spec.lua

@@ -1,32 +1,59 @@
-local is_isogram = require 'isogram'
+local is_isogram = require('isogram')
 
 describe('isogram', function()
-  it('should identify simple isograms', function()
-    assert.is_true(is_isogram('duplicates'))
-    assert.is_true(is_isogram('subdermatoglyphic'))
+  it('empty string', function()
+    assert.is_true(is_isogram(''))
+  end)
+
+  it('isogram with only lower case characters', function()
+    assert.is_true(is_isogram('isogram'))
   end)
 
-  it('should identify words with repeated letters as non-isograms', function()
+  it('word with one duplicated character', function()
     assert.is_false(is_isogram('eleven'))
   end)
 
-  it('should be case insensitive', function()
+  it('word with one duplicated character from the end of the alphabet', function()
+    assert.is_false(is_isogram('zzyzx'))
+  end)
+
+  it('longest reported english isogram', function()
+    assert.is_true(is_isogram('subdermatoglyphic'))
+  end)
+
+  it('word with duplicated character in mixed case', function()
     assert.is_false(is_isogram('Alphabet'))
   end)
 
-  it('should allow punctuations in isograms', function()
+  it('word with duplicated character in mixed case, lowercase first', function()
+    assert.is_false(is_isogram('alphAbet'))
+  end)
+
+  it('hypothetical isogrammic word with hyphen', function()
     assert.is_true(is_isogram('thumbscrew-japingly'))
   end)
 
-  it('should allow repeated punctuation in isograms', function()
-    assert.is_true(is_isogram('Hjelmqvist-Gryb-Zock-Pfund-Wax'))
+  it('hypothetical word with duplicated character following hyphen', function()
+    assert.is_false(is_isogram('thumbscrew-jappingly'))
   end)
 
-  it('should identify non-isogram sentences', function()
-    assert.is_false(is_isogram('the quick brown fox'))
+  it('isogram with duplicated hyphen', function()
+    assert.is_true(is_isogram('six-year-old'))
   end)
 
-  it('should identify isogram sentences', function()
+  it('made-up name that is an isogram', function()
     assert.is_true(is_isogram('Emily Jung Schwartzkopf'))
   end)
+
+  it('duplicated character in the middle', function()
+    assert.is_false(is_isogram('accentor'))
+  end)
+
+  it('same first and last characters', function()
+    assert.is_false(is_isogram('angola'))
+  end)
+
+  it('word with duplicated character and with two hyphens', function()
+    assert.is_false(is_isogram('up-to-date'))
+  end)
 end)