API: Fix booleans not recognized as such when using the `to_boolean` helper

Signed-off-by: Rémy Coutable <remy@rymai.me>

CHANGELOG.md

@@ -11,6 +11,7 @@ Please view this file on the master branch, on stable branches it's out of date.
   - Fix HipChat notifications rendering (airatshigapov, eisnerd)
   - Add hover to trash icon in notes !7008 (blackst0ne)
   - Fix sidekiq stats in admin area (blackst0ne)
+  - API: Fix booleans not recognized as such when using the `to_boolean` helper
   - Removed delete branch tooltip !6954
   - Escape ref and path for relative links !6050 (winniehell)
   - Fixed link typo on /help/ui to Alerts section. !6915 (Sam Rose)

lib/api/helpers.rb

@@ -6,6 +6,7 @@ module API
     SUDO_PARAM = :sudo
 
     def to_boolean(value)
+      return value if [true, false].include?(value)
       return true if value =~ /^(true|t|yes|y|1|on)$/i
       return false if value =~ /^(false|f|no|n|0|off)$/i
 

spec/requests/api/api_helpers_spec.rb

@@ -266,18 +266,25 @@ describe API::Helpers, api: true do
   end
 
   describe '.to_boolean' do
+    it 'accepts booleans' do
+      expect(to_boolean(true)).to be(true)
+      expect(to_boolean(false)).to be(false)
+    end
+
     it 'converts a valid string to a boolean' do
-      expect(to_boolean('true')).to be_truthy
-      expect(to_boolean('YeS')).to be_truthy
-      expect(to_boolean('t')).to be_truthy
-      expect(to_boolean('1')).to be_truthy
-      expect(to_boolean('ON')).to be_truthy
-      expect(to_boolean('FaLse')).to be_falsy
-      expect(to_boolean('F')).to be_falsy
-      expect(to_boolean('NO')).to be_falsy
-      expect(to_boolean('n')).to be_falsy
-      expect(to_boolean('0')).to be_falsy
-      expect(to_boolean('oFF')).to be_falsy
+      expect(to_boolean(true)).to be(true)
+      expect(to_boolean('true')).to be(true)
+      expect(to_boolean('YeS')).to be(true)
+      expect(to_boolean('t')).to be(true)
+      expect(to_boolean('1')).to be(true)
+      expect(to_boolean('ON')).to be(true)
+
+      expect(to_boolean('FaLse')).to be(false)
+      expect(to_boolean('F')).to be(false)
+      expect(to_boolean('NO')).to be(false)
+      expect(to_boolean('n')).to be(false)
+      expect(to_boolean('0')).to be(false)
+      expect(to_boolean('oFF')).to be(false)
     end
 
     it 'converts an invalid string to nil' do