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Test that all languages have grammars

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This will make CI fail if someone adds a new language but neglects to
add a new grammar for it. This should make it easier for people to
review PRs, as CI will help them to make sure a new grammar gets added.

However, we currently support some languages that have no grammars, and
we may support more in the future. So you can explicitly mark the
language as having no grammar by setting `tm_scope: NONE` in
languages.yml.
This commit is contained in:
Adam Roben
2014-11-21 09:46:43 -05:00
parent 6629b75aa6
commit 49247e9ec2
2 changed files with 88 additions and 0 deletions
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12
test/test_language.rb
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@@ -1,5 +1,6 @@
require 'linguist/language'
require 'test/unit'
require 'yaml'
class TestLanguage < Test::Unit::TestCase
include Linguist
@@ -359,4 +360,15 @@ class TestLanguage < Test::Unit::TestCase
def test_by_type
assert !Language.by_type(:prose).nil?
end
def test_all_languages_have_grammars
scopes = YAML.load(File.read(File.expand_path("../../grammars.yml", __FILE__))).values.flatten
missing = Language.all.reject { |language| language.tm_scope == "NONE" || scopes.include?(language.tm_scope) }
message = "The following languages' scopes are not listed in grammars.yml. Please add grammars for all new languages.\n"
message << "If no grammar exists for a language, mark the language with `tm_scope: NONE` in lib/linguist/languages.yml.\n"
width = missing.map { |language| language.name.length }.max
message << missing.map { |language| sprintf("%-#{width}s %s", language.name, language.tm_scope) }.sort.join("\n")
assert missing.empty?, message
end
end