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assert_that.go
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assert_that.go
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// Copyright 2011 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ogletest
import (
"github.com/smartystreets/goconvey/convey/assertions/oglematchers"
)
// AssertThat is identical to ExpectThat, except that in the event of failure
// it halts the currently running test immediately. It is thus useful for
// things like bounds checking:
//
// someSlice := [...]
// AssertEq(1, len(someSlice)) // Protects next line from panicking.
// ExpectEq("taco", someSlice[0])
//
func AssertThat(
x interface{},
m oglematchers.Matcher,
errorParts ...interface{}) ExpectationResult {
res := ExpectThat(x, m, errorParts...)
res.SetCaller(getCallerForAlias())
matcherErr := res.MatchResult()
if matcherErr != nil {
panic(&assertThatError{})
}
return res
}
// assertThatError is a sentinel type that is used in a conspiracy between
// AssertThat and runTests. If runTests sees a *assertThatError as the value
// given to a panic() call, it will avoid printing the panic error.
type assertThatError struct {
}