Add a failure message to be_detected_from matcher

2017-09-22 16:57:27 +09:00 · 2017-09-22 16:57:27 +09:00 · 557105640b
commit 557105640b
parent 7d720e8fac
1 changed files with 12 additions and 2 deletions
--- a/Library/Homebrew/test/version_spec.rb
+++ b/Library/Homebrew/test/version_spec.rb
@ -241,8 +241,18 @@ describe Version do

  describe "::detect" do
    matcher :be_detected_from do |url, specs = {}|
-      match do |version|
-        Version.detect(url, specs) == version
+      detected = Version.detect(url, specs)
+
+      match do |expected|
+        detected == expected
+      end
+
+      failure_message do |expected|
+        format = <<-EOS
+        expected: %s
+        detected: %s
+        EOS
+        format % [expected, detected]
      end
    end