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555 lines
17 KiB
Markdown
555 lines
17 KiB
Markdown
# assertions
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--
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import "github.com/smartystreets/assertions"
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Package assertions contains the implementations for all assertions which are
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referenced in goconvey's `convey` package
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(github.com/smartystreets/goconvey/convey) for use with the So(...) method. They
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can also be used in traditional Go test functions and even in applicaitons.
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## Usage
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#### func GoConveyMode
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```go
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func GoConveyMode(yes bool)
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```
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GoConveyMode provides control over JSON serialization of failures. When using
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the assertions in this package from the convey package JSON results are very
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helpful and can be rendered in a DIFF view. In that case, this function will be
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called with a true value to enable the JSON serialization. By default, the
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assertions in this package will not serializer a JSON result, making standalone
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ussage more convenient.
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#### func ShouldAlmostEqual
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```go
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func ShouldAlmostEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldAlmostEqual makes sure that two parameters are close enough to being
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equal. The acceptable delta may be specified with a third argument, or a very
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small default delta will be used.
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#### func ShouldBeBetween
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```go
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func ShouldBeBetween(actual interface{}, expected ...interface{}) string
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```
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ShouldBeBetween receives exactly three parameters: an actual value, a lower
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bound, and an upper bound. It ensures that the actual value is between both
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bounds (but not equal to either of them).
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#### func ShouldBeBetweenOrEqual
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```go
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func ShouldBeBetweenOrEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldBeBetweenOrEqual receives exactly three parameters: an actual value, a
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lower bound, and an upper bound. It ensures that the actual value is between
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both bounds or equal to one of them.
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#### func ShouldBeBlank
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```go
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func ShouldBeBlank(actual interface{}, expected ...interface{}) string
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```
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ShouldBeBlank receives exactly 1 string parameter and ensures that it is equal
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to "".
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#### func ShouldBeChronological
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```go
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func ShouldBeChronological(actual interface{}, expected ...interface{}) string
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```
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ShouldBeChronological receives a []time.Time slice and asserts that the are in
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chronological order starting with the first time.Time as the earliest.
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#### func ShouldBeEmpty
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```go
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func ShouldBeEmpty(actual interface{}, expected ...interface{}) string
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```
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ShouldBeEmpty receives a single parameter (actual) and determines whether or not
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calling len(actual) would return `0`. It obeys the rules specified by the len
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function for determining length: http://golang.org/pkg/builtin/#len
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#### func ShouldBeFalse
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```go
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func ShouldBeFalse(actual interface{}, expected ...interface{}) string
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```
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ShouldBeFalse receives a single parameter and ensures that it is false.
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#### func ShouldBeGreaterThan
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```go
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func ShouldBeGreaterThan(actual interface{}, expected ...interface{}) string
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```
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ShouldBeGreaterThan receives exactly two parameters and ensures that the first
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is greater than the second.
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#### func ShouldBeGreaterThanOrEqualTo
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```go
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func ShouldBeGreaterThanOrEqualTo(actual interface{}, expected ...interface{}) string
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```
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ShouldBeGreaterThanOrEqualTo receives exactly two parameters and ensures that
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the first is greater than or equal to the second.
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#### func ShouldBeIn
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```go
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func ShouldBeIn(actual interface{}, expected ...interface{}) string
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```
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ShouldBeIn receives at least 2 parameters. The first is a proposed member of the
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collection that is passed in either as the second parameter, or of the
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collection that is comprised of all the remaining parameters. This assertion
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ensures that the proposed member is in the collection (using ShouldEqual).
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#### func ShouldBeLessThan
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```go
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func ShouldBeLessThan(actual interface{}, expected ...interface{}) string
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```
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ShouldBeLessThan receives exactly two parameters and ensures that the first is
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less than the second.
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#### func ShouldBeLessThanOrEqualTo
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```go
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func ShouldBeLessThanOrEqualTo(actual interface{}, expected ...interface{}) string
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```
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ShouldBeLessThan receives exactly two parameters and ensures that the first is
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less than or equal to the second.
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#### func ShouldBeNil
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```go
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func ShouldBeNil(actual interface{}, expected ...interface{}) string
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```
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ShouldBeNil receives a single parameter and ensures that it is nil.
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#### func ShouldBeTrue
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```go
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func ShouldBeTrue(actual interface{}, expected ...interface{}) string
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```
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ShouldBeTrue receives a single parameter and ensures that it is true.
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#### func ShouldBeZeroValue
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```go
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func ShouldBeZeroValue(actual interface{}, expected ...interface{}) string
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```
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ShouldBeZeroValue receives a single parameter and ensures that it is the Go
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equivalent of the default value, or "zero" value.
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#### func ShouldContain
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```go
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func ShouldContain(actual interface{}, expected ...interface{}) string
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```
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ShouldContain receives exactly two parameters. The first is a slice and the
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second is a proposed member. Membership is determined using ShouldEqual.
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#### func ShouldContainKey
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```go
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func ShouldContainKey(actual interface{}, expected ...interface{}) string
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```
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ShouldContainKey receives exactly two parameters. The first is a map and the
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second is a proposed key. Keys are compared with a simple '=='.
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#### func ShouldContainSubstring
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```go
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func ShouldContainSubstring(actual interface{}, expected ...interface{}) string
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```
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ShouldContainSubstring receives exactly 2 string parameters and ensures that the
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first contains the second as a substring.
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#### func ShouldEndWith
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```go
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func ShouldEndWith(actual interface{}, expected ...interface{}) string
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```
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ShouldEndWith receives exactly 2 string parameters and ensures that the first
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ends with the second.
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#### func ShouldEqual
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```go
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func ShouldEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldEqual receives exactly two parameters and does an equality check.
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#### func ShouldEqualTrimSpace
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```go
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func ShouldEqualTrimSpace(actual interface{}, expected ...interface{}) string
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```
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ShouldEqualTrimSpace receives exactly 2 string parameters and ensures that the
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first is equal to the second after removing all leading and trailing whitespace
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using strings.TrimSpace(first).
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#### func ShouldEqualWithout
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```go
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func ShouldEqualWithout(actual interface{}, expected ...interface{}) string
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```
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ShouldEqualWithout receives exactly 3 string parameters and ensures that the
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first is equal to the second after removing all instances of the third from the
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first using strings.Replace(first, third, "", -1).
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#### func ShouldHappenAfter
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```go
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func ShouldHappenAfter(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenAfter receives exactly 2 time.Time arguments and asserts that the
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first happens after the second.
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#### func ShouldHappenBefore
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```go
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func ShouldHappenBefore(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenBefore receives exactly 2 time.Time arguments and asserts that the
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first happens before the second.
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#### func ShouldHappenBetween
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```go
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func ShouldHappenBetween(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenBetween receives exactly 3 time.Time arguments and asserts that the
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first happens between (not on) the second and third.
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#### func ShouldHappenOnOrAfter
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```go
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func ShouldHappenOnOrAfter(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenOnOrAfter receives exactly 2 time.Time arguments and asserts that
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the first happens on or after the second.
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#### func ShouldHappenOnOrBefore
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```go
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func ShouldHappenOnOrBefore(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenOnOrBefore receives exactly 2 time.Time arguments and asserts that
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the first happens on or before the second.
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#### func ShouldHappenOnOrBetween
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```go
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func ShouldHappenOnOrBetween(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenOnOrBetween receives exactly 3 time.Time arguments and asserts that
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the first happens between or on the second and third.
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#### func ShouldHappenWithin
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```go
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func ShouldHappenWithin(actual interface{}, expected ...interface{}) string
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```
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ShouldHappenWithin receives a time.Time, a time.Duration, and a time.Time (3
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arguments) and asserts that the first time.Time happens within or on the
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duration specified relative to the other time.Time.
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#### func ShouldHaveLength
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```go
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func ShouldHaveLength(actual interface{}, expected ...interface{}) string
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```
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ShouldHaveLength receives a collection and a positive integer and asserts that
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the length of the collection is equal to the integer provided.
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#### func ShouldHaveSameTypeAs
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```go
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func ShouldHaveSameTypeAs(actual interface{}, expected ...interface{}) string
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```
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ShouldHaveSameTypeAs receives exactly two parameters and compares their
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underlying types for equality.
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#### func ShouldImplement
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```go
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func ShouldImplement(actual interface{}, expectedList ...interface{}) string
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```
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ShouldImplement receives exactly two parameters and ensures that the first
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implements the interface type of the second.
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#### func ShouldNotAlmostEqual
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```go
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func ShouldNotAlmostEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldNotAlmostEqual is the inverse of ShouldAlmostEqual
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#### func ShouldNotBeBetween
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```go
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func ShouldNotBeBetween(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeBetween receives exactly three parameters: an actual value, a lower
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bound, and an upper bound. It ensures that the actual value is NOT between both
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bounds.
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#### func ShouldNotBeBetweenOrEqual
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```go
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func ShouldNotBeBetweenOrEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeBetweenOrEqual receives exactly three parameters: an actual value, a
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lower bound, and an upper bound. It ensures that the actual value is nopt
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between the bounds nor equal to either of them.
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#### func ShouldNotBeBlank
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```go
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func ShouldNotBeBlank(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeBlank receives exactly 1 string parameter and ensures that it is
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equal to "".
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#### func ShouldNotBeEmpty
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```go
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func ShouldNotBeEmpty(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeEmpty receives a single parameter (actual) and determines whether or
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not calling len(actual) would return a value greater than zero. It obeys the
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rules specified by the `len` function for determining length:
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http://golang.org/pkg/builtin/#len
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#### func ShouldNotBeIn
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```go
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func ShouldNotBeIn(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeIn receives at least 2 parameters. The first is a proposed member of
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the collection that is passed in either as the second parameter, or of the
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collection that is comprised of all the remaining parameters. This assertion
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ensures that the proposed member is NOT in the collection (using ShouldEqual).
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#### func ShouldNotBeNil
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```go
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func ShouldNotBeNil(actual interface{}, expected ...interface{}) string
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```
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ShouldNotBeNil receives a single parameter and ensures that it is not nil.
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#### func ShouldNotContain
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```go
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func ShouldNotContain(actual interface{}, expected ...interface{}) string
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```
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ShouldNotContain receives exactly two parameters. The first is a slice and the
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second is a proposed member. Membership is determinied using ShouldEqual.
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#### func ShouldNotContainKey
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```go
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func ShouldNotContainKey(actual interface{}, expected ...interface{}) string
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```
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ShouldNotContainKey receives exactly two parameters. The first is a map and the
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second is a proposed absent key. Keys are compared with a simple '=='.
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#### func ShouldNotContainSubstring
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```go
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func ShouldNotContainSubstring(actual interface{}, expected ...interface{}) string
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```
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ShouldNotContainSubstring receives exactly 2 string parameters and ensures that
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the first does NOT contain the second as a substring.
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#### func ShouldNotEndWith
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```go
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func ShouldNotEndWith(actual interface{}, expected ...interface{}) string
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```
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ShouldEndWith receives exactly 2 string parameters and ensures that the first
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does not end with the second.
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#### func ShouldNotEqual
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```go
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func ShouldNotEqual(actual interface{}, expected ...interface{}) string
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```
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ShouldNotEqual receives exactly two parameters and does an inequality check.
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#### func ShouldNotHappenOnOrBetween
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```go
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func ShouldNotHappenOnOrBetween(actual interface{}, expected ...interface{}) string
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```
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ShouldNotHappenOnOrBetween receives exactly 3 time.Time arguments and asserts
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that the first does NOT happen between or on the second or third.
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#### func ShouldNotHappenWithin
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```go
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func ShouldNotHappenWithin(actual interface{}, expected ...interface{}) string
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```
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ShouldNotHappenWithin receives a time.Time, a time.Duration, and a time.Time (3
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arguments) and asserts that the first time.Time does NOT happen within or on the
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duration specified relative to the other time.Time.
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#### func ShouldNotHaveSameTypeAs
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```go
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func ShouldNotHaveSameTypeAs(actual interface{}, expected ...interface{}) string
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```
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ShouldNotHaveSameTypeAs receives exactly two parameters and compares their
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underlying types for inequality.
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#### func ShouldNotImplement
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```go
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func ShouldNotImplement(actual interface{}, expectedList ...interface{}) string
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```
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ShouldNotImplement receives exactly two parameters and ensures that the first
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does NOT implement the interface type of the second.
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#### func ShouldNotPanic
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```go
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func ShouldNotPanic(actual interface{}, expected ...interface{}) (message string)
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```
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ShouldNotPanic receives a void, niladic function and expects to execute the
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function without any panic.
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#### func ShouldNotPanicWith
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```go
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func ShouldNotPanicWith(actual interface{}, expected ...interface{}) (message string)
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```
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ShouldNotPanicWith receives a void, niladic function and expects to recover a
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panic whose content differs from the second argument.
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#### func ShouldNotPointTo
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```go
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func ShouldNotPointTo(actual interface{}, expected ...interface{}) string
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```
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ShouldNotPointTo receives exactly two parameters and checks to see that they
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point to different addresess.
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#### func ShouldNotResemble
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```go
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func ShouldNotResemble(actual interface{}, expected ...interface{}) string
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```
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ShouldNotResemble receives exactly two parameters and does an inverse deep equal
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check (see reflect.DeepEqual)
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#### func ShouldNotStartWith
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```go
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func ShouldNotStartWith(actual interface{}, expected ...interface{}) string
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```
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ShouldNotStartWith receives exactly 2 string parameters and ensures that the
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first does not start with the second.
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#### func ShouldPanic
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```go
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func ShouldPanic(actual interface{}, expected ...interface{}) (message string)
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```
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ShouldPanic receives a void, niladic function and expects to recover a panic.
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#### func ShouldPanicWith
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```go
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func ShouldPanicWith(actual interface{}, expected ...interface{}) (message string)
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```
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ShouldPanicWith receives a void, niladic function and expects to recover a panic
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with the second argument as the content.
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#### func ShouldPointTo
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```go
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func ShouldPointTo(actual interface{}, expected ...interface{}) string
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```
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ShouldPointTo receives exactly two parameters and checks to see that they point
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to the same address.
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#### func ShouldResemble
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```go
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func ShouldResemble(actual interface{}, expected ...interface{}) string
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```
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ShouldResemble receives exactly two parameters and does a deep equal check (see
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reflect.DeepEqual)
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#### func ShouldStartWith
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```go
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func ShouldStartWith(actual interface{}, expected ...interface{}) string
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```
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ShouldStartWith receives exactly 2 string parameters and ensures that the first
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starts with the second.
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#### func So
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```go
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func So(actual interface{}, assert assertion, expected ...interface{}) (bool, string)
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```
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So is a convenience function (as opposed to an inconvenience function?) for
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running assertions on arbitrary arguments in any context, be it for testing or
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even application logging. It allows you to perform assertion-like behavior (and
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get nicely formatted messages detailing discrepancies) but without the program
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blowing up or panicking. All that is required is to import this package and call
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`So` with one of the assertions exported by this package as the second
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parameter. The first return parameter is a boolean indicating if the assertion
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was true. The second return parameter is the well-formatted message showing why
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an assertion was incorrect, or blank if the assertion was correct.
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Example:
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if ok, message := So(x, ShouldBeGreaterThan, y); !ok {
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log.Println(message)
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}
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#### type Assertion
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```go
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type Assertion struct {
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}
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```
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#### func New
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```go
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func New(t testingT) *Assertion
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```
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New swallows the *testing.T struct and prints failed assertions using t.Error.
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Example: assertions.New(t).So(1, should.Equal, 1)
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#### func (*Assertion) Failed
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```go
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func (this *Assertion) Failed() bool
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```
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Failed reports whether any calls to So (on this Assertion instance) have failed.
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#### func (*Assertion) So
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```go
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func (this *Assertion) So(actual interface{}, assert assertion, expected ...interface{}) bool
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```
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So calls the standalone So function and additionally, calls t.Error in failure
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scenarios.
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#### type Serializer
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```go
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type Serializer interface {
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// contains filtered or unexported methods
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}
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```
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