Add test from PR 1410

ci/mysql57.sh

@@ -11,5 +11,5 @@ apt-key add support/B7B3B788A8D3785C.asc # 8.1 and higher
 # Verify the repository as add-apt-repository does not.
 wget -q --spider http://repo.mysql.com/apt/ubuntu/dists/$(lsb_release -cs)/mysql-5.7
 add-apt-repository 'http://repo.mysql.com/apt/ubuntu mysql-5.7'
-apt-get update -qq
-apt-get install -qq mysql-server libmysqlclient-dev
+apt-get update --allow-unauthenticated -qq
+apt-get install --allow-unauthenticated -qq mysql-server libmysqlclient-dev

ci/mysql80.sh

@@ -11,5 +11,5 @@ apt-key add support/B7B3B788A8D3785C.asc # 8.1 and higher
 # Verify the repository as add-apt-repository does not.
 wget -q --spider http://repo.mysql.com/apt/ubuntu/dists/$(lsb_release -cs)/mysql-8.0
 add-apt-repository 'http://repo.mysql.com/apt/ubuntu mysql-8.0'
-apt-get update -qq
-apt-get install -qq mysql-server libmysqlclient-dev
+apt-get update --allow-unauthenticated -qq
+apt-get install --allow-unauthenticated -qq mysql-server libmysqlclient-dev

ci/mysql84.sh

@@ -9,5 +9,5 @@ apt-key add support/B7B3B788A8D3785C.asc # 8.1 and higher
 # Verify the repository as add-apt-repository does not.
 wget -q --spider http://repo.mysql.com/apt/ubuntu/dists/$(lsb_release -cs)/mysql-8.4-lts
 add-apt-repository 'http://repo.mysql.com/apt/ubuntu mysql-8.4-lts'
-apt-get update -qq
-apt-get install -qq mysql-server libmysqlclient-dev
+apt-get update --allow-unauthenticated -qq
+apt-get install --allow-unauthenticated -qq mysql-server libmysqlclient-dev

spec/mysql2/client_spec.rb

@@ -1071,14 +1071,16 @@ def run_gc
     end
 
     it "#affected_rows with multi statements returns the last result's affected_rows" do
-      @client.set_server_option(Mysql2::Client::OPTION_MULTI_STATEMENTS_ON)
-
-      @client.query("INSERT INTO lastIdTest (blah) VALUES (1234), (5678); UPDATE lastIdTest SET blah=4321 WHERE id=1")
-      expect(@client.affected_rows).to eq(2)
-      expect(@client.next_result).to eq(true)
-      expect(@client.affected_rows).to eq(1)
-    ensure
-      @client.set_server_option(Mysql2::Client::OPTION_MULTI_STATEMENTS_OFF)
+      begin
+        @client.set_server_option(Mysql2::Client::OPTION_MULTI_STATEMENTS_ON)
+
+        @client.query("INSERT INTO lastIdTest (blah) VALUES (1234), (5678); UPDATE lastIdTest SET blah=4321 WHERE id=1")
+        expect(@client.affected_rows).to eq(2)
+        expect(@client.next_result).to eq(true)
+        expect(@client.affected_rows).to eq(1)
+      ensure
+        @client.set_server_option(Mysql2::Client::OPTION_MULTI_STATEMENTS_OFF)
+      end
     end
 
     it "#affected_rows isn't cleared by Statement#close" do

spec/mysql2/statement_spec.rb

@@ -184,14 +184,22 @@ def stmt_count
   end
 
   it "should tell us about the fields" do
-    statement = @client.prepare 'SELECT 1 as foo, 2'
+    statement = @client.prepare 'SELECT 1 AS foo, 2'
     statement.execute
     list = statement.fields
     expect(list.length).to eq(2)
     expect(list.first).to eq('foo')
     expect(list[1]).to eq('2')
   end
 
+  it "should give us fields when no rows" do
+    statement = @client.prepare 'SELECT 1 AS foo FROM mysql2_test WHERE 1=0'
+    result = statement.execute
+    list = result.fields
+    expect(list.length).to eq(1)
+    expect(list.first).to eq('foo')
+  end
+
   it "should handle as a decimal binding a BigDecimal" do
     stmt = @client.prepare('SELECT ? AS decimal_test')
     test_result = stmt.execute(BigDecimal("123.45")).first