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author | Emilio Tagua <miloops@gmail.com> | 2009-05-26 12:41:52 -0300 |
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committer | Emilio Tagua <miloops@gmail.com> | 2009-05-26 12:41:52 -0300 |
commit | c9bbea6115be520dbd47bd30108c5622289deb26 (patch) | |
tree | ec418e01954c1bd2dcfebc7fbc8220fb04b50baf /spec/arel/engines/sql/unit/predicates/equality_spec.rb | |
parent | ae1e0ac5e98a7e5a2894d0a431f8c34af6575cae (diff) | |
parent | 86364591af807ed3fa4a7304f53e6f3458cb4961 (diff) | |
download | rails-c9bbea6115be520dbd47bd30108c5622289deb26.tar.gz rails-c9bbea6115be520dbd47bd30108c5622289deb26.tar.bz2 rails-c9bbea6115be520dbd47bd30108c5622289deb26.zip |
Merge commit 'brynary/master'
Conflicts:
lib/arel.rb
lib/arel/session.rb
Diffstat (limited to 'spec/arel/engines/sql/unit/predicates/equality_spec.rb')
-rw-r--r-- | spec/arel/engines/sql/unit/predicates/equality_spec.rb | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/spec/arel/engines/sql/unit/predicates/equality_spec.rb b/spec/arel/engines/sql/unit/predicates/equality_spec.rb new file mode 100644 index 0000000000..688a6a20be --- /dev/null +++ b/spec/arel/engines/sql/unit/predicates/equality_spec.rb @@ -0,0 +1,46 @@ +require File.join(File.dirname(__FILE__), '..', '..', '..', '..', '..', 'spec_helper') + +module Arel + describe Equality do + before do + @relation1 = Table.new(:users) + @relation2 = Table.new(:photos) + @attribute1 = @relation1[:id] + @attribute2 = @relation2[:user_id] + end + + describe '#to_sql' do + describe 'when relating to a non-nil value' do + it "manufactures an equality predicate" do + sql = Equality.new(@attribute1, @attribute2).to_sql + + adapter_is :mysql do + sql.should be_like(%Q{`users`.`id` = `photos`.`user_id`}) + end + + adapter_is_not :mysql do + sql.should be_like(%Q{"users"."id" = "photos"."user_id"}) + end + end + end + + describe 'when relation to a nil value' do + before do + @nil = nil + end + + it "manufactures an is null predicate" do + sql = Equality.new(@attribute1, @nil).to_sql + + adapter_is :mysql do + sql.should be_like(%Q{`users`.`id` IS NULL}) + end + + adapter_is_not :mysql do + sql.should be_like(%Q{"users"."id" IS NULL}) + end + end + end + end + end +end |