Rename database client classes

Update our class names to reflect the new file structure introduced in
b700c1bef89a67a64f1040fb6bb03c0320eefe91.

Use the

    module DBShell
      module Client
      end
    end

syntax intead of `DBShell::Client` so that we don't have to define the
`Client` module in a separate file and require it. Otherwise we'd get an
error:

    lib/dbshell/client/sqlite3.rb:1:in `<top (required)>': uninitialized constant DBShell::Client (NameError)

1 files changed, 6 insertions, 6 deletions

diff --git a/spec/dbshell/client/database_spec.rb b/spec/dbshell/client/database_spec.rb
index e08d810..5fe5597 100644
--- a/spec/dbshell/client/database_spec.rb
+++ b/spec/dbshell/client/database_spec.rb
@@ -1,23 +1,23 @@
 require 'minitest/autorun'
 require 'dbshell/client/database'
 
-describe DBShell::DatabaseClient do
+describe DBShell::Client::Database do
   describe ".handler" do
     it "handles SQLite3" do
-      DBShell::DatabaseClient.handler({
+      DBShell::Client::Database.handler({
         'adapter' => 'sqlite3'
-      }).must_equal(DBShell::Sqlite3Client)
+      }).must_equal(DBShell::Client::Sqlite3)
     end
 
     it "handles Postgres" do
-      DBShell::DatabaseClient.handler({
+      DBShell::Client::Database.handler({
         'adapter' => 'postgresql'
-      }).must_equal(DBShell::PostgresClient)
+      }).must_equal(DBShell::Client::Postgres)
     end
 
     it "raises an error if no suitable adapter is found" do
       proc do
-        DBShell::DatabaseClient.handler({
+        DBShell::Client::Database.handler({
           'adapter' => 'sybil_system'
         })
       end.must_raise(DBShell::InvalidDatabaseAdapter)