Resolve Pattern Matching syntax errors in old Ruby

Resolves syntax errors introduced by pattern matching in older versions
of Ruby through the use of `eval` to prevent immediate evaluation of
invalid syntax.

spec/lib/http/client_spec.rb

@@ -521,13 +521,15 @@ def on_error(request, error)
       let(:client) { described_class.new }
 
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case client
           in state: :clean
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/connection_spec.rb

@@ -87,13 +87,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case connection
           in status_code: 0, pending_request: false
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/content_type_spec.rb

@@ -59,13 +59,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case described_class.new('text/plain', 'utf-8')
           in mime_type: /text/
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/headers_spec.rb

@@ -535,13 +535,15 @@
         end
 
         it 'can perform a pattern match' do
-          value =
+          # Cursed hack to ignore syntax errors to test Pattern Matching.
+          value = eval <<~RUBY
             case headers
             in content_type: /json/, set_cookie: [/hoo/, *]
               true
             else
               false
             end
+          RUBY
 
           expect(value).to eq(true)
         end

spec/lib/http/options_spec.rb

@@ -43,13 +43,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case subject
           in keep_alive_timeout: 5..10
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/request/body_spec.rb

@@ -223,13 +223,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case subject
           in size: 0
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/request/writer_spec.rb

@@ -124,13 +124,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case subject
           in request_header: [/GET .*/]
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/request_spec.rb

@@ -252,13 +252,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case request
           in port: 80, verb: :get, version: /^1\.\d/
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/response/body_spec.rb

@@ -99,13 +99,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case subject
           in contents: nil
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/response/status_spec.rb

@@ -269,13 +269,15 @@
       subject { described_class.new("200.0") }
 
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case subject
           in code: 200..299
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/response_spec.rb

@@ -190,25 +190,29 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case response
           in body: /Hello/, version: /^1.\d/
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end
 
       it 'can perform an array pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case response
           in [200, *]
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end

spec/lib/http/uri_spec.rb

@@ -50,13 +50,15 @@
 
     describe 'Pattern Matching' do
       it 'can perform a pattern match' do
-        value =
+        # Cursed hack to ignore syntax errors to test Pattern Matching.
+        value = eval <<~RUBY
           case http_uri
           in host: /example/, port: 50..100, scheme: 'http'
             true
           else
             false
           end
+        RUBY
 
         expect(value).to eq(true)
       end