tests: fix tests that make unexpected network calls

These were found with the Utils::Curl check and just turning
off the network on my computer and running the entire test suite.

Library/Homebrew/cli/named_args.rb

@@ -256,11 +256,15 @@ module Homebrew
               paths = []
 
               if formula_path.exist? ||
-                 (!CoreTap.instance.installed? && Homebrew::API::Formula.all_formulae.key?(path.basename.to_s))
+                 (!Homebrew::EnvConfig.no_install_from_api? &&
+                 !CoreTap.instance.installed? &&
+                 Homebrew::API::Formula.all_formulae.key?(path.basename.to_s))
                 paths << formula_path
               end
               if cask_path.exist? ||
-                 (!CoreCaskTap.instance.installed? && Homebrew::API::Cask.all_casks.key?(path.basename.to_s))
+                 (!Homebrew::EnvConfig.no_install_from_api? &&
+                 !CoreCaskTap.instance.installed? &&
+                 Homebrew::API::Cask.all_casks.key?(path.basename.to_s))
                 paths << cask_path
               end
 

Library/Homebrew/test/cask/info_spec.rb

@@ -3,6 +3,11 @@
 require "utils"
 
 RSpec.describe Cask::Info, :cask do
+  before do
+    # Prevent unnecessary network requests in `Utils::Analytics.cask_output`
+    ENV["HOMEBREW_NO_ANALYTICS"] = "1"
+  end
+
   it "displays some nice info about the specified Cask" do
     expect do
       described_class.info(Cask::CaskLoader.load("local-transmission"))

Library/Homebrew/test/formulary_spec.rb

@@ -384,6 +384,10 @@ RSpec.describe Formulary do
       before do
         ENV.delete("HOMEBREW_NO_INSTALL_FROM_API")
 
+        # avoid unnecessary network calls
+        allow(Homebrew::API::Formula).to receive_messages(all_aliases: {}, all_renames: {})
+        allow(CoreTap.instance).to receive(:tap_migrations).and_return({})
+
         # don't try to load/fetch gcc/glibc
         allow(DevelopmentTools).to receive_messages(needs_libc_formula?: false, needs_compiler_formula?: false)
       end

Library/Homebrew/test/tap_spec.rb

@@ -192,7 +192,7 @@ RSpec.describe Tap do
   end
 
   describe "#remote" do
-    it "returns the remote URL" do
+    it "returns the remote URL", :needs_network do
       setup_git_repo
 
       expect(homebrew_foo_tap.remote).to eq("https://github.com/Homebrew/homebrew-foo")