1 files changed, 197 insertions, 0 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/schema_test.rb b/activerecord/test/cases/adapters/postgresql/schema_test.rb
new file mode 100644
index 0000000000..a5c3e69af9
--- /dev/null
+++ b/activerecord/test/cases/adapters/postgresql/schema_test.rb
@@ -0,0 +1,197 @@
+require "cases/helper"
+
+class SchemaTest < ActiveRecord::TestCase
+  self.use_transactional_fixtures = false
+
+  SCHEMA_NAME = 'test_schema'
+  SCHEMA2_NAME = 'test_schema2'
+  TABLE_NAME = 'things'
+  CAPITALIZED_TABLE_NAME = 'Things'
+  INDEX_A_NAME = 'a_index_things_on_name'
+  INDEX_B_NAME = 'b_index_things_on_different_columns_in_each_schema'
+  INDEX_C_NAME = 'c_index_full_text_search'
+  INDEX_A_COLUMN = 'name'
+  INDEX_B_COLUMN_S1 = 'email'
+  INDEX_B_COLUMN_S2 = 'moment'
+  INDEX_C_COLUMN = %q{(to_tsvector('english', coalesce(things.name, '')))}
+  COLUMNS = [
+    'id integer',
+    'name character varying(50)',
+    'email character varying(50)',
+    'moment timestamp without time zone default now()'
+  ]
+
+  class Thing1 < ActiveRecord::Base
+    set_table_name "test_schema.things"
+  end
+
+  class Thing2 < ActiveRecord::Base
+    set_table_name "test_schema2.things"
+  end
+
+  class Thing3 < ActiveRecord::Base
+    set_table_name 'test_schema."things.table"'
+  end
+
+  class Thing4 < ActiveRecord::Base
+    set_table_name 'test_schema."Things"'
+  end
+
+  def setup
+    @connection = ActiveRecord::Base.connection
+    @connection.execute "CREATE SCHEMA #{SCHEMA_NAME} CREATE TABLE #{TABLE_NAME} (#{COLUMNS.join(',')})"
+    @connection.execute "CREATE TABLE #{SCHEMA_NAME}.\"#{TABLE_NAME}.table\" (#{COLUMNS.join(',')})"
+    @connection.execute "CREATE TABLE #{SCHEMA_NAME}.\"#{CAPITALIZED_TABLE_NAME}\" (#{COLUMNS.join(',')})"
+    @connection.execute "CREATE SCHEMA #{SCHEMA2_NAME} CREATE TABLE #{TABLE_NAME} (#{COLUMNS.join(',')})"
+    @connection.execute "CREATE INDEX #{INDEX_A_NAME} ON #{SCHEMA_NAME}.#{TABLE_NAME}  USING btree (#{INDEX_A_COLUMN});"
+    @connection.execute "CREATE INDEX #{INDEX_A_NAME} ON #{SCHEMA2_NAME}.#{TABLE_NAME}  USING btree (#{INDEX_A_COLUMN});"
+    @connection.execute "CREATE INDEX #{INDEX_B_NAME} ON #{SCHEMA_NAME}.#{TABLE_NAME}  USING btree (#{INDEX_B_COLUMN_S1});"
+    @connection.execute "CREATE INDEX #{INDEX_B_NAME} ON #{SCHEMA2_NAME}.#{TABLE_NAME}  USING btree (#{INDEX_B_COLUMN_S2});"
+    @connection.execute "CREATE INDEX #{INDEX_C_NAME} ON #{SCHEMA_NAME}.#{TABLE_NAME}  USING gin (#{INDEX_C_COLUMN});"
+    @connection.execute "CREATE INDEX #{INDEX_C_NAME} ON #{SCHEMA2_NAME}.#{TABLE_NAME}  USING gin (#{INDEX_C_COLUMN});"
+  end
+
+  def teardown
+    @connection.execute "DROP SCHEMA #{SCHEMA2_NAME} CASCADE"
+    @connection.execute "DROP SCHEMA #{SCHEMA_NAME} CASCADE"
+  end
+
+  def test_table_exists?
+    [Thing1, Thing2, Thing3, Thing4].each do |klass|
+      name = klass.table_name
+      assert @connection.table_exists?(name), "'#{name}' table should exist"
+    end
+  end
+
+  def test_table_exists_wrong_schema
+    assert(!@connection.table_exists?("foo.things"), "table should not exist")
+  end
+
+  def test_table_exists_quoted_table
+    assert(@connection.table_exists?('"things.table"'), "table should exist")
+  end
+
+  def test_with_schema_prefixed_table_name
+    assert_nothing_raised do
+      assert_equal COLUMNS, columns("#{SCHEMA_NAME}.#{TABLE_NAME}")
+    end
+  end
+
+  def test_with_schema_prefixed_capitalized_table_name
+    assert_nothing_raised do
+      assert_equal COLUMNS, columns("#{SCHEMA_NAME}.#{CAPITALIZED_TABLE_NAME}")
+    end
+  end
+
+  def test_with_schema_search_path
+    assert_nothing_raised do
+      with_schema_search_path(SCHEMA_NAME) do
+        assert_equal COLUMNS, columns(TABLE_NAME)
+      end
+    end
+  end
+
+
+  def test_proper_encoding_of_table_name
+    assert_equal '"table_name"', @connection.quote_table_name('table_name')
+    assert_equal '"table.name"', @connection.quote_table_name('"table.name"')
+    assert_equal '"schema_name"."table_name"', @connection.quote_table_name('schema_name.table_name')
+    assert_equal '"schema_name"."table.name"', @connection.quote_table_name('schema_name."table.name"')
+    assert_equal '"schema.name"."table_name"', @connection.quote_table_name('"schema.name".table_name')
+    assert_equal '"schema.name"."table.name"', @connection.quote_table_name('"schema.name"."table.name"')
+  end
+
+  def test_classes_with_qualified_schema_name
+    assert_equal 0, Thing1.count
+    assert_equal 0, Thing2.count
+    assert_equal 0, Thing3.count
+    assert_equal 0, Thing4.count
+
+    Thing1.create(:id => 1, :name => "thing1", :email => "thing1@localhost", :moment => Time.now)
+    assert_equal 1, Thing1.count
+    assert_equal 0, Thing2.count
+    assert_equal 0, Thing3.count
+    assert_equal 0, Thing4.count
+
+    Thing2.create(:id => 1, :name => "thing1", :email => "thing1@localhost", :moment => Time.now)
+    assert_equal 1, Thing1.count
+    assert_equal 1, Thing2.count
+    assert_equal 0, Thing3.count
+    assert_equal 0, Thing4.count
+
+    Thing3.create(:id => 1, :name => "thing1", :email => "thing1@localhost", :moment => Time.now)
+    assert_equal 1, Thing1.count
+    assert_equal 1, Thing2.count
+    assert_equal 1, Thing3.count
+    assert_equal 0, Thing4.count
+
+    Thing4.create(:id => 1, :name => "thing1", :email => "thing1@localhost", :moment => Time.now)
+    assert_equal 1, Thing1.count
+    assert_equal 1, Thing2.count
+    assert_equal 1, Thing3.count
+    assert_equal 1, Thing4.count
+  end
+
+  def test_raise_on_unquoted_schema_name
+    assert_raise(ActiveRecord::StatementInvalid) do
+      with_schema_search_path '$user,public'
+    end
+  end
+
+  def test_without_schema_search_path
+    assert_raise(ActiveRecord::StatementInvalid) { columns(TABLE_NAME) }
+  end
+
+  def test_ignore_nil_schema_search_path
+    assert_nothing_raised { with_schema_search_path nil }
+  end
+
+  def test_dump_indexes_for_schema_one
+    do_dump_index_tests_for_schema(SCHEMA_NAME, INDEX_A_COLUMN, INDEX_B_COLUMN_S1)
+  end
+
+  def test_dump_indexes_for_schema_two
+    do_dump_index_tests_for_schema(SCHEMA2_NAME, INDEX_A_COLUMN, INDEX_B_COLUMN_S2)
+  end
+
+  def test_with_uppercase_index_name
+    ActiveRecord::Base.connection.execute "CREATE INDEX \"things_Index\" ON #{SCHEMA_NAME}.things (name)"
+    assert_nothing_raised { ActiveRecord::Base.connection.remove_index! "things", "#{SCHEMA_NAME}.things_Index"}
+
+    ActiveRecord::Base.connection.execute "CREATE INDEX \"things_Index\" ON #{SCHEMA_NAME}.things (name)"
+    ActiveRecord::Base.connection.schema_search_path = SCHEMA_NAME
+    assert_nothing_raised { ActiveRecord::Base.connection.remove_index! "things", "things_Index"}
+    ActiveRecord::Base.connection.schema_search_path = "public"
+  end
+
+  private
+    def columns(table_name)
+      @connection.send(:column_definitions, table_name).map do |name, type, default|
+        "#{name} #{type}" + (default ? " default #{default}" : '')
+      end
+    end
+
+    def with_schema_search_path(schema_search_path)
+      @connection.schema_search_path = schema_search_path
+      yield if block_given?
+    ensure
+      @connection.schema_search_path = "'$user', public"
+    end
+
+    def do_dump_index_tests_for_schema(this_schema_name, first_index_column_name, second_index_column_name)
+      with_schema_search_path(this_schema_name) do
+        indexes = @connection.indexes(TABLE_NAME).sort_by {|i| i.name}
+        assert_equal 2,indexes.size
+
+        do_dump_index_assertions_for_one_index(indexes[0], INDEX_A_NAME, first_index_column_name)
+        do_dump_index_assertions_for_one_index(indexes[1], INDEX_B_NAME, second_index_column_name)
+      end
+    end
+
+    def do_dump_index_assertions_for_one_index(this_index, this_index_name, this_index_column)
+      assert_equal TABLE_NAME, this_index.table
+      assert_equal 1, this_index.columns.size
+      assert_equal this_index_column, this_index.columns[0]
+      assert_equal this_index_name, this_index.name
+    end
+end