diff options
Diffstat (limited to 'activerecord/test/cases/arel/nodes/case_test.rb')
-rw-r--r-- | activerecord/test/cases/arel/nodes/case_test.rb | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/activerecord/test/cases/arel/nodes/case_test.rb b/activerecord/test/cases/arel/nodes/case_test.rb new file mode 100644 index 0000000000..2c087e624e --- /dev/null +++ b/activerecord/test/cases/arel/nodes/case_test.rb @@ -0,0 +1,84 @@ +# frozen_string_literal: true + +require_relative "../helper" + +module Arel + module Nodes + describe "Case" do + describe "#initialize" do + it "sets case expression from first argument" do + node = Case.new "foo" + + assert_equal "foo", node.case + end + + it "sets default case from second argument" do + node = Case.new nil, "bar" + + assert_equal "bar", node.default + end + end + + describe "#clone" do + it "clones case, conditions and default" do + foo = Nodes.build_quoted "foo" + + node = Case.new + node.case = foo + node.conditions = [When.new(foo, foo)] + node.default = foo + + dolly = node.clone + + assert_equal dolly.case, node.case + refute_same dolly.case, node.case + + assert_equal dolly.conditions, node.conditions + refute_same dolly.conditions, node.conditions + + assert_equal dolly.default, node.default + refute_same dolly.default, node.default + end + end + + describe "equality" do + it "is equal with equal ivars" do + foo = Nodes.build_quoted "foo" + one = Nodes.build_quoted 1 + zero = Nodes.build_quoted 0 + + case1 = Case.new foo + case1.conditions = [When.new(foo, one)] + case1.default = Else.new zero + + case2 = Case.new foo + case2.conditions = [When.new(foo, one)] + case2.default = Else.new zero + + array = [case1, case2] + + assert_equal 1, array.uniq.size + end + + it "is not equal with different ivars" do + foo = Nodes.build_quoted "foo" + bar = Nodes.build_quoted "bar" + one = Nodes.build_quoted 1 + zero = Nodes.build_quoted 0 + + case1 = Case.new foo + case1.conditions = [When.new(foo, one)] + case1.default = Else.new zero + + case2 = Case.new foo + case2.conditions = [When.new(bar, one)] + case2.default = Else.new zero + + array = [case1, case2] + + assert_equal 2, array.uniq.size + end + end + end + end +end |