Various changes to the provider to ensure commands are successful,

as well as improvements to the tests.

lib/puppet/provider/database_user/mysql.rb

@@ -4,8 +4,8 @@ Puppet::Type.type(:database_user).provide(:mysql) do
 
   defaultfor :kernel => 'Linux'
 
-  optional_commands :mysql      => 'mysql'
+  commands :mysql      => 'mysql'
-  optional_commands :mysqladmin => 'mysqladmin'
+  commands :mysqladmin => 'mysqladmin'
 
   def self.instances
     users = mysql([defaults_file, "mysql", '-BNe' "select concat(User, '@',Host) as User from mysql.user"].compact).split("\n")
@@ -15,19 +15,28 @@ Puppet::Type.type(:database_user).provide(:mysql) do
   end
 
   def create
-    mysql([defaults_file, "mysql", "-e", "create user '%s' identified by PASSWORD '%s'" % [ @resource[:name].sub("@", "'@'"), @resource.value(:password_hash) ]].compact)
+    merged_name   = @resource[:name].sub("@", "'@'")
+    password_hash = @resource.value(:password_hash)
+    mysql([defaults_file, "mysql", "-e", "create user '#{merged_name}' identified by PASSWORD '#{password_hash}'"].compact)
+
+    exists? ? (return true) : (return false)
   end
 
   def destroy
-    mysql([defaults_file, "mysql", "-e", "drop user '%s'" % @resource.value(:name).sub("@", "'@'") ].compact)
+    merged_name   = @resource[:name].sub("@", "'@'")
+    mysql([defaults_file, "mysql", "-e", "drop user '#{merged_name}'"].compact)
+
+    exists? ? (return false) : (return true)
   end
 
   def password_hash
-    mysql([defaults_file, "mysql", "-NBe", "select password from mysql.user where CONCAT(user, '@', host) = '%s'" % @resource.value(:name)].compact).chomp
+    mysql([defaults_file, "mysql", "-NBe", "select password from mysql.user where CONCAT(user, '@', host) = '#{@resource[:name]}'"].compact).chomp
   end
 
   def password_hash=(string)
     mysql([defaults_file, "mysql", "-e", "SET PASSWORD FOR '%s' = '%s'" % [ @resource[:name].sub("@", "'@'"), string ] ].compact)
+
+    password_hash == string ? (return true) : (return false)
   end
 
   def exists?

spec/unit/puppet/provider/database_user/mysql_spec.rb

@@ -1,5 +1,4 @@
 require 'spec_helper'
-require 'pry'
 
 provider_class = Puppet::Type.type(:database_user).provider(:mysql)
 
@@ -48,27 +47,31 @@ usvn_user@localhost
   describe 'create' do
     it 'makes a user' do
       subject.expects(:mysql).with([defaults_file, 'mysql', '-e', "create user 'joe'@'localhost' identified by PASSWORD '*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF4'"])
-      @provider.create
+      @provider.expects(:exists?).returns(true)
+      @provider.create.should be_true
     end
   end
 
   describe 'destroy' do
     it 'removes a user if present' do
       subject.expects(:mysql).with([defaults_file, 'mysql', '-e', "drop user 'joe'@'localhost'"])
-      @provider.destroy
+      @provider.expects(:exists?).returns(false)
+      @provider.destroy.should be_true
     end
   end
 
   describe 'password_hash' do
     it 'returns a hash' do
       subject.expects(:mysql).with([defaults_file, 'mysql', '-NBe', "select password from mysql.user where CONCAT(user, '@', host) = 'joe@localhost'"]).returns('*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF4')
-      @provider.password_hash
+      @provider.password_hash.should == '*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF4'
     end
   end
 
   describe 'password_hash=' do
     it 'changes the hash' do
-      subject.expects(:mysql).with([defaults_file, 'mysql', '-e', "SET PASSWORD FOR 'joe'@'localhost' = '*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF5'"])
+      subject.expects(:mysql).with([defaults_file, 'mysql', '-e', "SET PASSWORD FOR 'joe'@'localhost' = '*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF5'"]).returns('0')
+
+      @provider.expects(:password_hash).returns('*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF5')
       @provider.password_hash=('*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF5')
     end
   end