diff options
Diffstat (limited to 'activerecord/test/cases/calculations_test.rb')
| -rw-r--r-- | activerecord/test/cases/calculations_test.rb | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb index afef31396e..caf07a7357 100644 --- a/activerecord/test/cases/calculations_test.rb +++ b/activerecord/test/cases/calculations_test.rb @@ -23,6 +23,17 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal 53.0, value end + def test_should_return_decimal_average_of_integer_field + value = Account.average(:id) + assert_equal 3.5, value + end + + def test_should_return_integer_average_if_db_returns_such + Account.connection.stubs :select_value => 3 + value = Account.average(:id) + assert_equal 3, value + end + def test_should_return_nil_as_average assert_nil NumericData.average(:bank_balance) end @@ -54,6 +65,19 @@ class CalculationsTest < ActiveRecord::TestCase c = Account.sum(:credit_limit, :group => :firm_id) [1,6,2].each { |firm_id| assert c.keys.include?(firm_id) } end + + def test_should_group_by_multiple_fields + c = Account.count(:all, :group => ['firm_id', :credit_limit]) + [ [nil, 50], [1, 50], [6, 50], [6, 55], [9, 53], [2, 60] ].each { |firm_and_limit| assert c.keys.include?(firm_and_limit) } + end + + def test_should_group_by_multiple_fields_having_functions + c = Topic.group(:author_name, 'COALESCE(type, title)').count(:all) + assert_equal 1, c[["Carl", "The Third Topic of the day"]] + assert_equal 1, c[["Mary", "Reply"]] + assert_equal 1, c[["David", "The First Topic"]] + assert_equal 1, c[["Carl", "Reply"]] + end def test_should_group_by_summed_field c = Account.sum(:credit_limit, :group => :firm_id) @@ -85,6 +109,36 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal [2, 6], c.keys.compact end + def test_limit_with_offset_is_kept + return if current_adapter?(:OracleAdapter) + + queries = assert_sql { Account.limit(1).offset(1).count } + assert_equal 1, queries.length + assert_match(/LIMIT/, queries.first) + assert_match(/OFFSET/, queries.first) + end + + def test_offset_without_limit_removes_offset + queries = assert_sql { Account.offset(1).count } + assert_equal 1, queries.length + assert_no_match(/LIMIT/, queries.first) + assert_no_match(/OFFSET/, queries.first) + end + + def test_limit_without_offset_removes_limit + queries = assert_sql { Account.limit(1).count } + assert_equal 1, queries.length + assert_no_match(/LIMIT/, queries.first) + assert_no_match(/OFFSET/, queries.first) + end + + def test_no_limit_no_offset + queries = assert_sql { Account.count } + assert_equal 1, queries.length + assert_no_match(/LIMIT/, queries.first) + assert_no_match(/OFFSET/, queries.first) + end + def test_should_group_by_summed_field_having_condition c = Account.sum(:credit_limit, :group => :firm_id, :having => 'sum(credit_limit) > 50') @@ -275,6 +329,17 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal 2, Account.count(:firm_id, :conditions => "credit_limit = 50 AND firm_id IS NOT NULL") end + def test_should_count_field_in_joined_table + assert_equal 5, Account.count('companies.id', :joins => :firm) + assert_equal 4, Account.count('companies.id', :joins => :firm, :distinct => true) + end + + def test_should_count_field_in_joined_table_with_group_by + c = Account.count('companies.id', :group => 'accounts.firm_id', :joins => :firm) + + [1,6,2,9].each { |firm_id| assert c.keys.include?(firm_id) } + end + def test_count_with_no_parameters_isnt_deprecated assert_not_deprecated { Account.count } end @@ -336,4 +401,12 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal Account.count(:all), Company.count(:all, :from => 'accounts') end + def test_distinct_is_honored_when_used_with_count_operation_after_group + # Count the number of authors for approved topics + approved_topics_count = Topic.group(:approved).count(:author_name)[true] + assert_equal approved_topics_count, 3 + # Count the number of distinct authors for approved Topics + distinct_authors_for_approved_count = Topic.group(:approved).count(:author_name, :distinct => true)[true] + assert_equal distinct_authors_for_approved_count, 2 + end end |