Convert brew bottle test to spec.

Library/Homebrew/test/bottle_test.rb

@@ -1,21 +0,0 @@
-require "testing_env"
-
-class IntegrationCommandTestBottle < IntegrationCommandTestCase
-  def test_bottle
-    cmd("install", "--build-bottle", testball)
-    assert_match "Formula not from core or any taps",
-                 cmd_fail("bottle", "--no-rebuild", testball)
-
-    setup_test_formula "testball"
-
-    # `brew bottle` should not fail with dead symlink
-    # https://github.com/Homebrew/legacy-homebrew/issues/49007
-    (HOMEBREW_CELLAR/"testball/0.1").cd do
-      FileUtils.ln_s "not-exist", "symlink"
-    end
-    assert_match(/testball-0\.1.*\.bottle\.tar\.gz/,
-                  cmd("bottle", "--no-rebuild", "testball"))
-  ensure
-    FileUtils.rm_f Dir["testball-0.1*.bottle.tar.gz"]
-  end
-end

Library/Homebrew/test/dev-cmd/bottle_spec.rb

@@ -0,0 +1,30 @@
+describe "brew bottle", :integration_test do
+  it "builds a bottle for the given Formula" do
+    begin
+      shutup do
+        expect { brew "install", "--build-bottle", testball }
+          .to be_a_success
+      end
+
+      expect { brew "bottle", "--no-rebuild", testball }
+        .to output(/Formula not from core or any taps/).to_stderr
+        .and not_to_output.to_stdout
+        .and be_a_failure
+
+      setup_test_formula "testball"
+
+      # `brew bottle` should not fail with dead symlink
+      # https://github.com/Homebrew/legacy-homebrew/issues/49007
+      (HOMEBREW_CELLAR/"testball/0.1").cd do
+        FileUtils.ln_s "not-exist", "symlink"
+      end
+
+      expect { brew "bottle", "--no-rebuild", "testball" }
+        .to output(/testball-0\.1.*\.bottle\.tar\.gz/).to_stdout
+        .and not_to_output.to_stderr
+        .and be_a_success
+    ensure
+      FileUtils.rm_f Dir.glob("testball-0.1*.bottle.tar.gz")
+    end
+  end
+end