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Test use cases for prop valueOf & toString

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This commit is contained in:
Barney Carroll 2016-07-14 14:23:01 +01:00
parent 8f17472bcc
commit adaef70729
1 changed files with 141 additions and 128 deletions
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269
util/tests/test-stream.js
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@ -11,24 +11,24 @@ o.spec("stream", function() {
var initialValue = stream()
stream(2)
var newValue = stream()
o(initialValue).equals(1)
o(newValue).equals(2)
})
o("has undefined value by default", function() {
var stream = Stream.stream()
o(stream()).equals(undefined)
})
o("can update to undefined", function() {
var stream = Stream.stream(1)
stream(undefined)
o(stream()).equals(undefined)
})
o("can be stream of streams", function() {
var stream = Stream.stream(Stream.stream(1))
o(stream()()).equals(1)
})
})
@ -36,41 +36,41 @@ o.spec("stream", function() {
o("transforms value", function() {
var stream = Stream.stream()
var doubled = Stream.combine(function(s) {return s() * 2}, [stream])
stream(2)
o(doubled()).equals(4)
})
o("transforms default value", function() {
var stream = Stream.stream(2)
var doubled = Stream.combine(function(s) {return s() * 2}, [stream])
o(doubled()).equals(4)
})
o("transforms multiple values", function() {
var s1 = Stream.stream()
var s2 = Stream.stream()
var added = Stream.combine(function(s1, s2) {return s1() + s2()}, [s1, s2])
s1(2)
s2(3)
o(added()).equals(5)
})
o("transforms multiple default values", function() {
var s1 = Stream.stream(2)
var s2 = Stream.stream(3)
var added = Stream.combine(function(s1, s2) {return s1() + s2()}, [s1, s2])
o(added()).equals(5)
})
o("transforms mixed default and late-bound values", function() {
var s1 = Stream.stream(2)
var s2 = Stream.stream()
var added = Stream.combine(function(s1, s2) {return s1() + s2()}, [s1, s2])
s2(3)
o(added()).equals(5)
})
o("combines atomically", function() {
@ -82,9 +82,9 @@ o.spec("stream", function() {
count++
return b() + c()
}, [b, c])
a(3)
o(d()).equals(15)
o(count).equals(1)
})
@ -97,7 +97,7 @@ o.spec("stream", function() {
count++
return b() + c()
}, [b, c])
o(d()).equals(15)
o(count).equals(1)
})
@ -108,10 +108,10 @@ o.spec("stream", function() {
var c = Stream.combine(function(a, b, changed) {
streams = changed
}, [a, b])
a(3)
b(5)
o(streams.length).equals(1)
o(streams[0]).equals(b)
})
@ -122,9 +122,9 @@ o.spec("stream", function() {
var c = Stream.combine(function(a, b, changed) {
streams = changed
}, [a, b])
a(7)
o(streams.length).equals(1)
o(streams[0]).equals(a)
})
@ -133,7 +133,7 @@ o.spec("stream", function() {
var b = Stream.combine(function(a) {
return undefined
}, [a])
o(b()).equals(undefined)
})
o("combine can return stream", function() {
@ -141,7 +141,7 @@ o.spec("stream", function() {
var b = Stream.combine(function(a) {
return Stream.stream(2)
}, [a])
o(b()()).equals(2)
})
o("combine can return pending stream", function() {
@ -149,7 +149,7 @@ o.spec("stream", function() {
var b = Stream.combine(function(a) {
return Stream.stream()
}, [a])
o(b()()).equals(undefined)
})
o("combine can halt", function() {
@ -162,7 +162,7 @@ o.spec("stream", function() {
count++
return 1
})
o(b()).equals(undefined)
})
})
@ -170,40 +170,40 @@ o.spec("stream", function() {
o("end stream works", function() {
var stream = Stream.stream()
var doubled = Stream.combine(function(stream) {return stream() * 2}, [stream])
stream.end(true)
stream(3)
o(doubled()).equals(undefined)
})
o("end stream works with default value", function() {
var stream = Stream.stream(2)
var doubled = Stream.combine(function(stream) {return stream() * 2}, [stream])
stream.end(true)
stream(3)
o(doubled()).equals(4)
})
o("cannot add downstream to ended stream", function() {
var stream = Stream.stream(2)
stream.end(true)
var doubled = Stream.combine(function(stream) {return stream() * 2}, [stream])
stream(3)
o(doubled()).equals(undefined)
})
o("upstream does not affect ended stream", function() {
var stream = Stream.stream(2)
var doubled = Stream.combine(function(stream) {return stream() * 2}, [stream])
doubled.end(true)
stream(4)
o(doubled()).equals(4)
})
})
@ -211,16 +211,16 @@ o.spec("stream", function() {
o("error() works", function() {
var stream = Stream.stream()
var errored = Stream.combine(function(stream) {throw new Error("error")}, [stream])
stream(3)
o(errored()).equals(undefined)
o(errored.error().message).equals("error")
})
o("error() works with default value", function() {
var stream = Stream.stream(3)
var errored = Stream.combine(function(stream) {throw new Error("error")}, [stream])
o(errored()).equals(undefined)
o(errored.error().message).equals("error")
})
@ -230,9 +230,9 @@ o.spec("stream", function() {
if (typeof stream() !== "number") throw new Error("error")
else return stream() * 2
}, [stream])
stream(3)
o(doubled()).equals(6)
o(doubled.error()).equals(undefined)
})
@ -243,9 +243,9 @@ o.spec("stream", function() {
count++
return 2
})
stream.error(new Error("error"))
o(handled()).equals(2)
o(handled.error()).equals(undefined)
o(count).equals(1)
@ -262,7 +262,7 @@ o.spec("stream", function() {
count++
return value * 3
})
o(stream()).equals(undefined)
o(stream.error().message).equals("error")
o(count).equals(0)
@ -279,7 +279,7 @@ o.spec("stream", function() {
return value * 3
})
stream.error(new Error("error"))
o(mapped()).equals(undefined)
o(mapped.error().message).equals("error")
o(count).equals(0)
@ -289,11 +289,11 @@ o.spec("stream", function() {
var mappedFromError = stream.error.map(function(value) {
return "from" + value.message
})
o(mappedFromError()).equals(undefined)
stream.error(new Error("error"))
o(mappedFromError()).equals("fromerror")
})
o("error from error.map propagates", function() {
@ -304,11 +304,11 @@ o.spec("stream", function() {
.map(function(value) {
return "a" + value
})
o(mappedFromError()).equals(undefined)
stream.error(new Error("error"))
o(mappedFromError()).equals("afromerror")
})
o("error thrown from error.map propagates downstream", function() {
@ -317,15 +317,15 @@ o.spec("stream", function() {
var mappedFromError = stream.error.map(function(value) {
throw new Error("b")
})
var downstream = mappedFromError.map(function() {
count++
})
o(mappedFromError()).equals(undefined)
stream.error(new Error("a"))
o(mappedFromError()).equals(undefined)
o(mappedFromError.error().message).equals("b")
o(downstream()).equals(undefined)
@ -341,7 +341,7 @@ o.spec("stream", function() {
count++
return 1
})
o(stream()).equals(undefined)
o(count).equals(0)
})
@ -350,7 +350,7 @@ o.spec("stream", function() {
var error = stream.error.map(function(value) {
return Stream.stream(1)
})
o(error()()).equals(1)
})
o("combined stream of two errored streams adopts error from first", function() {
@ -358,7 +358,7 @@ o.spec("stream", function() {
var b = Stream.combine(function(a) {throw new Error("error from b")}, [a])
var c = Stream.combine(function(a) {throw new Error("error from c")}, [a])
var d = Stream.combine(function(a, b) {return 2}, [a, b])
o(d()).equals(undefined)
o(d.error().message).equals("error from b")
})
@ -366,7 +366,7 @@ o.spec("stream", function() {
o.spec("reject", function() {
o("reject works", function() {
var stream = Stream.reject(new Error("error"))
o(stream()).equals(undefined)
o(stream.error().message).equals("error")
})
@ -381,7 +381,7 @@ o.spec("stream", function() {
count++
return value * 3
})
o(stream()).equals(undefined)
o(stream.error().message).equals("error")
})
@ -390,9 +390,9 @@ o.spec("stream", function() {
var doubled = stream.map(function(value) {
return value * 2
})
stream(1)
o(doubled()).equals(2)
o(stream.error()).equals(undefined)
})
@ -404,7 +404,7 @@ o.spec("stream", function() {
count++
return a() + b()
}, [a, b])
o(combined()).equals(undefined)
o(combined.error().message).equals("a")
o(count).equals(0)
@ -414,29 +414,29 @@ o.spec("stream", function() {
o("works", function() {
var stream = Stream.stream()
var doubled = stream.run(function(value) {return value * 2})
stream(3)
o(doubled()).equals(6)
})
o("works with default value", function() {
var stream = Stream.stream(3)
var doubled = stream.run(function(value) {return value * 2})
o(doubled()).equals(6)
})
o("works with undefined value", function() {
var stream = Stream.stream()
var mapped = stream.run(function(value) {return String(value)})
stream(undefined)
o(mapped()).equals("undefined")
})
o("works with default undefined value", function() {
var stream = Stream.stream(undefined)
var mapped = stream.run(function(value) {return String(value)})
o(mapped()).equals("undefined")
})
o("works with stream that throws", function() {
@ -447,7 +447,7 @@ o.spec("stream", function() {
count++
return value
})
o(errored()).equals(undefined)
o(errored.error().message).equals("error")
o(mapped()).equals(undefined)
@ -462,20 +462,20 @@ o.spec("stream", function() {
count++
return value
})
o(mapped()).equals(undefined)
o(count).equals(0)
})
o("works with active stream", function() {
var stream = Stream.stream(undefined)
var mapped = stream.run(function(value) {return Stream.stream(1)})
o(mapped()).equals(1)
})
o("works with errored stream", function() {
var stream = Stream.stream(undefined)
var mapped = stream.run(function(value) {return Stream.reject(new Error("error"))})
o(mapped()).equals(undefined)
o(mapped.error().message).equals("error")
})
@ -486,36 +486,36 @@ o.spec("stream", function() {
ended.end(true)
return ended
})
stream(3)
o(mapped()).equals(2)
})
o("works when active stream updates", function() {
var stream = Stream.stream(undefined)
var absorbed = Stream.stream(1)
var mapped = stream.run(function(value) {return absorbed})
absorbed(2)
o(mapped()).equals(2)
absorbed(3)
o(mapped()).equals(3)
})
o("works when updating stream to errored state", function() {
var stream = Stream.stream(undefined)
var absorbed = Stream.stream(1)
var mapped = stream.run(function(value) {return absorbed})
absorbed.error(new Error("error"))
o(mapped()).equals(undefined)
o(mapped.error().message).equals("error")
absorbed.error(new Error("another error"))
o(mapped()).equals(undefined)
o(mapped.error().message).equals("another error")
})
@ -523,18 +523,18 @@ o.spec("stream", function() {
var stream = Stream.stream(undefined)
var absorbed = Stream.stream()
var mapped = stream.run(function(value) {return absorbed})
absorbed(2)
o(mapped()).equals(2)
})
o("works when updating pending stream to errored state", function() {
var stream = Stream.stream(undefined)
var absorbed = Stream.stream()
var mapped = stream.run(function(value) {return absorbed})
absorbed.error(new Error("error"))
o(mapped()).equals(undefined)
o(mapped.error().message).equals("error")
})
@ -542,14 +542,14 @@ o.spec("stream", function() {
var stream = Stream.stream(undefined)
var absorbed = Stream.stream(1)
var mapped = stream.run(function(value) {return absorbed})
absorbed.error(new Error("error"))
o(mapped()).equals(undefined)
o(mapped.error().message).equals("error")
absorbed(2)
o(mapped()).equals(2)
o(mapped.error()).equals(undefined)
})
@ -564,7 +564,7 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
o(count).equals(1)
o(stream()).equals("noerrormapped")
o(stream.error()).equals(undefined)
@ -578,7 +578,7 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
o(count).equals(1)
o(stream()).equals("noerrormapped")
o(stream.error()).equals(undefined)
@ -593,9 +593,9 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
stream("a")
o(count).equals(0)
o(handled()).equals("aamapped")
o(handled.error()).equals(undefined)
@ -609,7 +609,7 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
o(count).equals(0)
o(stream()).equals("aamapped")
o(stream.error()).equals(undefined)
@ -619,7 +619,7 @@ o.spec("stream", function() {
throw new Error("b")
})
var mapped = stream.map(function(value) {return value + "ok"})
o(stream()).equals(undefined)
o(stream.error().message).equals("b")
o(mapped()).equals(undefined)
@ -627,7 +627,7 @@ o.spec("stream", function() {
})
o("catch can return undefined", function() {
var stream = Stream.reject(new Error("b")).catch(function(e) {}).map(function(value) {return String(value)})
o(stream()).equals("undefined")
o(stream.error()).equals(undefined)
})
@ -641,7 +641,7 @@ o.spec("stream", function() {
count++
return String(value)
})
o(mapped()).equals(undefined)
o(count).equals(0)
})
@ -651,7 +651,7 @@ o.spec("stream", function() {
return stream
})
.map(function(value) {return String(value)})
o(mapped()).equals("1")
})
o("catch absorbs errored stream", function() {
@ -660,7 +660,7 @@ o.spec("stream", function() {
return stream
})
.map(function(value) {return String(value)})
o(mapped()).equals(undefined)
o(mapped.error().message).equals("a")
})
@ -669,7 +669,7 @@ o.spec("stream", function() {
var b = a.map(function(value) {return value + "b"}).catch(function(e) {})
var c = a.map(function(value) {return value + "c"})
var d = Stream.combine(function(b, c) {return b() + c()}, [b, c])
o(d()).equals(undefined)
o(d.error().message).equals("a")
})
@ -685,7 +685,7 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
o(stream()).equals("noerrormapped")
})
o("catches nested wrapped rejected stream", function() {
@ -702,7 +702,7 @@ o.spec("stream", function() {
.map(function(value) {
return value + "mapped"
})
o(stream()).equals("noerrormapped")
})
})
@ -717,6 +717,19 @@ o.spec("stream", function() {
o(Stream.stream([1, 2, 3]).valueOf()).deepEquals([1, 2, 3])
o(Stream.stream().valueOf()).equals(undefined)
})
o("allows implicit value access in mathematical operations", function() {
o(Stream.stream(1) + Stream.stream(1)).equals(2)
})
})
o.spec("toString", function() {
o("aliases valueOf", function() {
var stream = Stream.stream(1)
o(stream.toString).equals(stream.valueOf)
})
o("allows implicit value access in string operations", function() {
o(Stream.stream("a") + Stream.stream("b")).equals("ab")
})
})
o.spec("toJSON", function() {
o("works", function() {
@ -734,35 +747,35 @@ o.spec("stream", function() {
o("works", function() {
var stream = Stream.stream()
var doubled = stream.map(function(value) {return value * 2})
stream(3)
o(doubled()).equals(6)
})
o("works with default value", function() {
var stream = Stream.stream(3)
var doubled = stream.map(function(value) {return value * 2})
o(doubled()).equals(6)
})
o("works with undefined value", function() {
var stream = Stream.stream()
var mapped = stream.map(function(value) {return String(value)})
stream(undefined)
o(mapped()).equals("undefined")
})
o("works with default undefined value", function() {
var stream = Stream.stream(undefined)
var mapped = stream.map(function(value) {return String(value)})
o(mapped()).equals("undefined")
})
o("works with pending stream", function() {
var stream = Stream.stream(undefined)
var mapped = stream.map(function(value) {return Stream.stream()})
o(mapped()()).equals(undefined)
})
})
@ -771,26 +784,26 @@ o.spec("stream", function() {
var apply = Stream.stream(function(value) {return value * 2})
var stream = Stream.stream(3)
var applied = apply.ap(stream)
o(applied()).equals(6)
apply(function(value) {return value / 3})
o(applied()).equals(1)
stream(9)
o(applied()).equals(3)
})
o("works with undefined value", function() {
var apply = Stream.stream(function(value) {return String(value)})
var stream = Stream.stream(undefined)
var applied = apply.ap(stream)
o(applied()).equals("undefined")
apply(function(value) {return String(value) + "a"})
o(applied()).equals("undefineda")
})
})
@ -799,18 +812,18 @@ o.spec("stream", function() {
o("identity", function() {
var stream = Stream.stream(3)
var mapped = stream.map(function(value) {return value})
o(stream()).equals(mapped())
})
o("composition", function() {
function f(x) {return x * 2}
function g(x) {return x * x}
var stream = Stream.stream(3)
var mapped = stream.map(function(value) {return f(g(value))})
var composed = stream.map(g).map(f)
o(mapped()).equals(18)
o(mapped()).equals(composed())
})
@ -820,7 +833,7 @@ o.spec("stream", function() {
var a = Stream.stream(function(value) {return value * 2})
var u = Stream.stream(function(value) {return value * 3})
var v = Stream.stream(5)
var mapped = a.map(function(f) {
return function(g) {
return function(x) {
@ -828,9 +841,9 @@ o.spec("stream", function() {
}
}
}).ap(u).ap(v)
var composed = a.ap(u.ap(v))
o(mapped()).equals(30)
o(mapped()).equals(composed())
})
@ -839,7 +852,7 @@ o.spec("stream", function() {
o("identity", function() {
var a = Stream.stream().of(function(value) {return value})
var v = Stream.stream(5)
o(a.ap(v)()).equals(5)
o(a.ap(v)()).equals(v())
})
@ -847,7 +860,7 @@ o.spec("stream", function() {
var a = Stream.stream(0)
var f = function(value) {return value * 2}
var x = 3
o(a.of(f).ap(a.of(x))()).equals(6)
o(a.of(f).ap(a.of(x))()).equals(a.of(f(x))())
})
@ -855,10 +868,10 @@ o.spec("stream", function() {
var u = Stream.stream(function(value) {return value * 2})
var a = Stream.stream()
var y = 3
o(u.ap(a.of(y))()).equals(6)
o(u.ap(a.of(y))()).equals(a.of(function(f) {return f(y)}).ap(u)())
})
})
})
})
})