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Size: 1.06 KB
Versions: 28
Compression:
Stored size: 1.06 KB
Contents
require 'test/unit'
require 'promise/v2'
class TestPromiseTrace < Test::Unit::TestCase
def test_calls_the_block_with_all_the_previous_results
x = 42
PromiseV2.value(1)
.then { 2 }
.then { 3 }
.trace {|a, b, c| x = a + b + c }
.always { assert_equal(x, 6) }
end
def test_calls_the_then_after_the_trace
x = 42
PromiseV2.value(1)
.then { 2 }
.then { 3 }
.trace { |a, b, c| a + b + c }
.then { |v| x = v }
.always { assert_equal(x, 6) }
end
def test_includes_the_first_value
x = 42
PromiseV2.value(1)
.trace { |a| x = a }
.always { assert_equal(x, 1) }
end
def test_works_after_a_when
x = 42
PromiseV2.value(1).then {
PromiseV2.when PromiseV2.value(2), PromiseV2.value(3)
}.trace {|a, b|
#x = a + b[0] + b[1]
x = "#{a},#{b}"
}.always { assert_equal(x, "1,native") } # 6
end
def test_raises_with_traceB_if_a_promise_has_already_been_chained
p = PromiseV2.new
p.then! {}
assert_raise(ArgumentError) { p.trace! {} }
end
end
Version data entries
28 entries across 28 versions & 1 rubygems