func Test_Int64(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(int64(1), Is(Int64()))
we.CheckThat(int64(1), ToType(Is(Int64Type())))
we.CheckThat(int(1), Is(Not(Int64())))
we.CheckThat(int(1), ToType(Is(Not(Int64Type()))))
}
func Test_Empty_onSlices(t *testing.T) {
we := asserter.Using(t)
empty := []string{}
hasTwo := []string{"itsy", "bitsy"}
we.CheckThat(empty, Is(Empty()))
we.CheckThat(hasTwo, Is(Not(Empty())))
}
func Test_Uint(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(uint(1), Is(Uint()))
we.CheckThat(uint(1), ToType(Is(UintType())))
we.CheckThat(int(1), Is(Not(Uint())))
we.CheckThat(int(1), ToType(Is(Not(UintType()))))
}
func Test_PanicWhen_onFunctionAcceptingTwoArgsDotDotDot(t *testing.T) {
we := asserter.Using(t)
var functionInvoked bool
PanicOn13 := PanicWhenApplying(func(arg int, why ...string) {
functionInvoked = true
if arg == 13 {
panic("Superstition")
}
}, "Disallow13")
functionInvoked = false
we.CheckThat(PanicOn13.Match("thirteen"), Matched.
Comment("Should panic when can't invoke function"))
we.CheckFalse(functionInvoked, "Shouldn't have invoked function")
functionInvoked = false
we.CheckThat(PanicOn13.Match(12), DidNotMatch)
we.CheckTrue(functionInvoked, "Should have invoked function")
functionInvoked = false
we.CheckThat(PanicOn13.Match(13), Matched)
we.CheckTrue(functionInvoked, "Should have invoked function")
logSamples(t, PanicOn13)
}
func Test_Empty_onMaps(t *testing.T) {
we := asserter.Using(t)
empty := map[string]int{}
hasTwo := map[string]int{"foo": 1, "bar": 2}
we.CheckThat(empty, Is(Empty()))
we.CheckThat(hasTwo, Is(Not(Empty())))
}
func Test_ToLen_onSlices(t *testing.T) {
we := asserter.Using(t)
empty := []string{}
hasTwo := []string{"itsy", "bitsy"}
we.CheckThat(empty, ToLen(Is(EqualTo(0))))
we.CheckThat(hasTwo, ToLen(Is(EqualTo(2))))
}
func Test_PanicWhen_onFunctionAcceptingBool(t *testing.T) {
we := asserter.Using(t)
var functionInvoked bool
PanicOnFalse := PanicWhenApplying(func(b bool) {
functionInvoked = true
if !b {
panic("Must be true")
}
}, "PanicOnFalse")
functionInvoked = false
we.CheckThat(PanicOnFalse.Match("true"), Matched.
Comment("Should panic when can't invoke function"))
we.CheckFalse(functionInvoked, "Shouldn't have invoked function")
functionInvoked = false
we.CheckThat(PanicOnFalse.Match(nil), Matched.
Comment("Can't invoke function with string"))
we.CheckFalse(functionInvoked, "Shouldn't have invoked function")
functionInvoked = false
we.CheckThat(PanicOnFalse.Match(true), DidNotMatch)
we.CheckTrue(functionInvoked, "Should have invoked function")
functionInvoked = false
we.CheckThat(PanicOnFalse.Match(false), Matched)
we.CheckTrue(functionInvoked, "Should have invoked function")
logSamples(t, PanicOnFalse)
}
func Test_DeepEqualTo(t *testing.T) {
we := asserter.Using(t)
data := []interface{}{
nil, true, false,
int(42), uint(42), float64(42), complex128(42),
struct{ x int }{x: 42},
struct{ x int }{x: 42},
&struct{ x int }{x: 42},
struct{ y int }{y: 42},
_DeepEqualType{x: 42},
&_DeepEqualType{x: 42},
[]int{42},
[]int{42},
map[int]int{42: 42},
map[int]int{42: 42},
make(chan int, 42),
make(chan int, 42),
}
for _, x := range data {
matcher := DeepEqualTo(x)
for _, y := range data {
message := fmt.Sprintf("%T[%v] and %T[%v]", x, x, y, y)
if reflect.DeepEqual(x, y) {
we.CheckThat(matcher.Match(y), Matched.Comment(message))
} else {
we.CheckThat(matcher.Match(y), DidNotMatch.Comment(message))
}
}
}
logSamples(t, DeepEqualTo(42))
}
func Test_ToLen_onMaps(t *testing.T) {
we := asserter.Using(t)
empty := map[string]int{}
hasTwo := map[string]int{"foo": 1, "bar": 2}
we.CheckThat(empty, ToLen(Is(EqualTo(0))))
we.CheckThat(hasTwo, ToLen(Is(EqualTo(2))))
}
func Test_Is(t *testing.T) {
we := asserter.Using(t)
matcher := Is(True())
we.CheckThat(matcher.Match(true), Matched)
we.CheckThat(matcher.Match(false), DidNotMatch)
logSamples(t, matcher)
}
func Test_SliceTypeOf(t *testing.T) {
we := asserter.Using(t)
boolSlice := make([]bool, 0, 1)
intSlice := make([]int, 0, 1)
intSliceSlice := make([][]int, 0, 1)
we.CheckThat(boolSlice, Is(SliceOf(BoolType())))
we.CheckThat(boolSlice, Is(Not(SliceOf(IntType()))))
we.CheckThat(boolSlice, ToType(Is(SliceTypeOf(BoolType()))))
we.CheckThat(boolSlice, ToType(Is(Not(SliceTypeOf(IntType())))))
we.CheckThat(intSlice, Is(Not(SliceOf(BoolType()))))
we.CheckThat(intSlice, Is(SliceOf(IntType())))
we.CheckThat(intSlice, ToType(Is(Not(SliceTypeOf(BoolType())))))
we.CheckThat(intSlice, ToType(Is(SliceTypeOf(IntType()))))
we.CheckThat(intSliceSlice, Is(Not(SliceOf(IntType()))))
we.CheckThat(intSliceSlice, Is(Not(SliceOf(SliceOf(IntType())))))
we.CheckThat(intSliceSlice, Is(Not(SliceTypeOf(SliceOf(IntType())))))
we.CheckThat(intSliceSlice, Is(SliceOf(SliceTypeOf(IntType()))))
we.CheckThat(intSliceSlice, ToType(Is(SliceTypeOf(SliceTypeOf(IntType())))))
var intArray = [3]int{1, 2, 3}
we.CheckThat(intArray, Is(Not(SliceOf(Anything()))))
we.CheckThat(intArray, ToType(Is(Not(SliceTypeOf(Anything())))))
}
func logSamples(t *testing.T, matcher *base.Matcher) {
t.Logf("Sample results for: %v\n", matcher)
we := asserter.Using(t)
for index, value := range sampleValues {
t.Logf("Sample #%v: %T[value: %v]\n", index+1, value, value)
we.LogResult(matcher.Match(value))
}
}
func Test_ToLen(t *testing.T) {
we := asserter.Using(t)
IsLength2 := ToLen(Is(EqualTo(2)))
we.CheckThat(IsLength2.Match([]int{}), DidNotMatch.Comment("no elements"))
we.CheckThat(IsLength2.Match([]int{7}), DidNotMatch.Comment("too few"))
we.CheckThat(IsLength2.Match([]int{7, 8}), Matched.Comment("just right"))
we.CheckThat(IsLength2.Match([]int{7, 8, 9}), DidNotMatch.Comment("too many"))
}
func Test_EveryElement_ofSlice(t *testing.T) {
we := asserter.Using(t)
we.CheckThat([]int{1, 2, 3}, EveryElement(LessThan(4)).Comment("all elements"))
we.CheckThat([]int{2, 1, 1}, Not(EveryElement(LessThan(2))).Comment("all but first"))
we.CheckThat([]int{1, 2, 1}, Not(EveryElement(LessThan(2))).Comment("all but middle"))
we.CheckThat([]int{1, 1, 2}, Not(EveryElement(LessThan(2))).Comment("all but last"))
we.CheckThat([]int{}, EveryElement(Anything()).Comment("no elements"))
}
func Test_AnyElement_ofSlice(t *testing.T) {
we := asserter.Using(t)
we.CheckThat([]int{1, 2, 3}, AnyElement(EqualTo(1)).Comment("first element"))
we.CheckThat([]int{1, 2, 3}, AnyElement(EqualTo(2)).Comment("middle element"))
we.CheckThat([]int{1, 2, 3}, AnyElement(EqualTo(3)).Comment("last element"))
we.CheckThat([]int{1, 2, 3}, Not(AnyElement(EqualTo(4))).Comment("none matching"))
we.CheckThat([]int{}, Not(AnyElement(Anything())).Comment("no elements"))
}
func Test_MapTypeOf(t *testing.T) {
we := asserter.Using(t)
intStringMap := map[int]string{1: "one", 2: "two"}
we.CheckThat(intStringMap, ToType(Is(MapTypeOf(IntType(), StringType()))))
we.CheckThat(intStringMap, ToType(Is(Not(MapTypeOf(StringType(), StringType())))))
we.CheckThat(intStringMap, ToType(Is(Not(MapTypeOf(IntType(), IntType())))))
we.CheckThat(intStringMap, ToType(Is(Not(MapTypeOf(StringType(), IntType())))))
}
func Test_Float64(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(float64(1.0), Is(Float64()))
we.CheckThat(float64(1.0), ToType(Is(Float64Type())))
we.CheckThat(float32(1.0), Is(Not(Float64())))
we.CheckThat(float32(1.0), ToType(Is(Not(Float64Type()))))
we.CheckThat(complex128(1.0), Is(Not(Float64())))
we.CheckThat(complex128(1.0), ToType(Is(Not(Float64Type()))))
}
func Test_SameTypeAs(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(SameTypeAs(false).Match(true), Matched)
we.CheckThat(SameTypeAs(true).Match(false), Matched)
we.CheckThat(SameTypeAs(2).Match(1), Matched)
we.CheckThat(SameTypeAs(int(2)).Match(uint(1)), DidNotMatch)
}
func Test_Complex128(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(complex128(1.0i), Is(Complex128()))
we.CheckThat(complex128(1.0i), ToType(Is(Complex128Type())))
we.CheckThat(complex64(1.0i), Is(Not(Complex128())))
we.CheckThat(complex64(1.0i), ToType(Is(Not(Complex128Type()))))
we.CheckThat(float64(1.0), Is(Not(Complex128())))
we.CheckThat(float64(1.0), ToType(Is(Not(Complex128Type()))))
}
func Test_NonNil(t *testing.T) {
we := asserter.Using(t)
matcher := NonNil()
we.CheckThat(matcher.Match(false), Matched)
we.CheckThat(matcher.Match(0), Matched)
we.CheckThat(matcher.Match("nil"), Matched)
checkMatcherIsNonMatchingOnNils(t, matcher)
logSamples(t, matcher)
}
// Check Matchers
func TestAnything(t *testing.T) {
we := asserter.Using(t)
matcher := Anything()
we.CheckThat(matcher.Match(true), Matched)
we.CheckThat(matcher.Match(false), Matched)
we.CheckThat(matcher.Match("foo"), Matched)
checkMatcherIsMatchingOnNils(t, matcher)
logSamples(t, matcher)
}
func Test_False(t *testing.T) {
we := asserter.Using(t)
matcher := False()
we.CheckThat(matcher.Match(true), DidNotMatch)
we.CheckThat(matcher.Match(false), Matched)
we.CheckThat(matcher.Match("false"), DidNotMatch)
we.CheckThat(matcher.Match(0), DidNotMatch)
checkMatcherIsNonMatchingOnNils(t, matcher)
logSamples(t, matcher)
}
func checkMatcherIsNonMatchingOnNils(t *testing.T, matcher *base.Matcher) {
we := asserter.Using(t)
we.CheckThat(matcher.Match(nil), DidNotMatch.Comment("nil"))
we.CheckThat(matcher.Match(uninitialized._pointer), DidNotMatch.Comment("uninitialized pointer"))
we.CheckThat(matcher.Match(uninitialized._func), DidNotMatch.Comment("uninitialized func"))
we.CheckThat(matcher.Match(uninitialized._slice), DidNotMatch.Comment("uninitialized slice"))
we.CheckThat(matcher.Match(uninitialized._chan), DidNotMatch.Comment("uninitialized chan"))
we.CheckThat(matcher.Match(uninitialized._map), DidNotMatch.Comment("uninitialized map"))
we.CheckThat(matcher.Match(uninitialized._interface), DidNotMatch.Comment("uninitialized interface"))
}
func Test_NotEqualTo(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(3, NotEqualTo(2))
we.CheckThat(3, Not(NotEqualTo(3)))
we.CheckThat(3, NotEqualTo("3"))
we.CheckThat(int(3), NotEqualTo(uint(3)))
we.CheckThat(3, NotEqualTo(nil))
we.CheckThat(nil, NotEqualTo(3))
}
func Test_EachElem(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(EachElem(NotEqualTo(1)).Match([]int{1, 2, 3}),
DidNotMatch.Comment("all but first element"))
we.CheckThat(EachElem(NotEqualTo(2)).Match([]int{1, 2, 3}),
DidNotMatch.Comment("all but middle element"))
we.CheckThat(EachElem(NotEqualTo(3)).Match([]int{1, 2, 3}),
DidNotMatch.Comment("all but last element"))
we.CheckThat(EachElem(NotEqualTo(4)).Match([]int{1, 2, 3}),
Matched.Comment("all match"))
we.CheckThat(EachElem(Anything()).Match([]int{}),
Matched.Comment("no elements"))
}
func Test_AnyElem(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(AnyElem(EqualTo(1)).Match([]int{1, 2, 3}),
Matched.Comment("first element"))
we.CheckThat(AnyElem(EqualTo(2)).Match([]int{1, 2, 3}),
Matched.Comment("middle element"))
we.CheckThat(AnyElem(EqualTo(3)).Match([]int{1, 2, 3}),
Matched.Comment("last element"))
we.CheckThat(AnyElem(EqualTo(4)).Match([]int{1, 2, 3}),
DidNotMatch.Comment("None of the three match"))
we.CheckThat(AnyElem(Anything()).Match([]int{}),
DidNotMatch.Comment("no elements"))
}
func Test_EveryMapElement(t *testing.T) {
we := asserter.Using(t)
twoMap := map[string]int{"foo": 1, "bar": 2}
emptyMap := map[string]int{}
we.CheckThat(twoMap, EveryMapElement(GreaterThan(0)).
Comment("all entries"))
we.CheckThat(twoMap, Not(EveryMapElement(GreaterThan(1))).
Comment("not entry [foo: 1]"))
we.CheckThat(twoMap, Not(EveryMapElement(LessThan(2))).
Comment("not entry [bar: 2]"))
we.CheckThat(emptyMap, EveryMapElement(Anything()).
Comment("no entries"))
}
func Test_AnyMapElement(t *testing.T) {
we := asserter.Using(t)
twoMap := map[string]int{"foo": 1, "bar": 2}
emptyMap := map[string]int{}
we.CheckThat(twoMap, AnyMapElement(EqualTo(1)).
Comment("entry [foo: 1]"))
we.CheckThat(twoMap, AnyMapElement(EqualTo(2)).
Comment("entry [bar: 2]"))
we.CheckThat(twoMap, Not(AnyMapElement(EqualTo(3))).
Comment("neither entry matches"))
we.CheckThat(emptyMap, Not(AnyMapElement(Anything())).
Comment("no entries"))
}
func Test_GreaterThan(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(3, GreaterThan(2))
we.CheckThat(3, Not(GreaterThan(3)))
we.CheckThat(3, Not(GreaterThan(4)))
we.CheckThat(3, Not(GreaterThan("2")))
we.CheckThat("3", Not(GreaterThan(2)))
we.CheckThat(t, Not(GreaterThan(t)))
we.CheckThat(nil, Not(GreaterThan(3)))
we.CheckThat(3, Not(GreaterThan(nil)))
}
func Test_LessThanOrEqualTo(t *testing.T) {
we := asserter.Using(t)
we.CheckThat(3, Not(LessThanOrEqualTo(2)))
we.CheckThat(3, LessThanOrEqualTo(3))
we.CheckThat(3, LessThanOrEqualTo(4))
we.CheckThat(3, Not(LessThanOrEqualTo("4")))
we.CheckThat("3", Not(LessThanOrEqualTo(4)))
we.CheckThat(t, Not(LessThanOrEqualTo(t)))
we.CheckThat(nil, Not(LessThanOrEqualTo(3)))
we.CheckThat(3, Not(LessThanOrEqualTo(nil)))
}