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has_same_type_as_test.go
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// Copyright 2015 Aaron Jacobs. All Rights Reserved.
// Author: [email protected] (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 oglematchers_test
import (
"io"
"testing"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
)
func TestHasSameTypeAs(t *testing.T) { RunTests(t) }
////////////////////////////////////////////////////////////////////////
// Boilerplate
////////////////////////////////////////////////////////////////////////
type HasSameTypeAsTest struct {
}
func init() { RegisterTestSuite(&HasSameTypeAsTest{}) }
////////////////////////////////////////////////////////////////////////
// Tests
////////////////////////////////////////////////////////////////////////
func (t *HasSameTypeAsTest) CandidateIsLiteralNil() {
matcher := HasSameTypeAs(nil)
var err error
// Description
ExpectEq("has type <nil>", matcher.Description())
// Literal nil
err = matcher.Matches(nil)
ExpectEq(nil, err)
// nil in interface variable
var r io.Reader
err = matcher.Matches(r)
ExpectEq(nil, err)
// int
err = matcher.Matches(17)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type int")))
// string
err = matcher.Matches("")
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type string")))
// nil map
var m map[string]string
err = matcher.Matches(m)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type map[string]string")))
// Non-nil map
m = make(map[string]string)
err = matcher.Matches(m)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type map[string]string")))
}
func (t *HasSameTypeAsTest) CandidateIsNilMap() {
var m map[string]string
matcher := HasSameTypeAs(m)
var err error
// Description
ExpectEq("has type map[string]string", matcher.Description())
// nil map
m = nil
err = matcher.Matches(m)
ExpectEq(nil, err)
// Non-nil map
m = make(map[string]string)
err = matcher.Matches(m)
ExpectEq(nil, err)
// Literal nil
err = matcher.Matches(nil)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type <nil>")))
// int
err = matcher.Matches(17)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type int")))
// string
err = matcher.Matches("")
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type string")))
}
func (t *HasSameTypeAsTest) CandidateIsNilInInterfaceVariable() {
var r io.Reader
matcher := HasSameTypeAs(r)
var err error
// Description
ExpectEq("has type <nil>", matcher.Description())
// nil in interface variable
r = nil
err = matcher.Matches(r)
ExpectEq(nil, err)
// Literal nil
err = matcher.Matches(nil)
ExpectEq(nil, err)
// int
err = matcher.Matches(17)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type int")))
}
func (t *HasSameTypeAsTest) CandidateIsString() {
matcher := HasSameTypeAs("")
var err error
// Description
ExpectEq("has type string", matcher.Description())
// string
err = matcher.Matches("taco")
ExpectEq(nil, err)
// string alias
type Foo string
err = matcher.Matches(Foo("taco"))
ExpectThat(err, Error(MatchesRegexp("which has type .*Foo")))
// Literal nil
err = matcher.Matches(nil)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type <nil>")))
// int
err = matcher.Matches(17)
AssertNe(nil, err)
ExpectThat(err, Error(Equals("which has type int")))
}
func (t *HasSameTypeAsTest) CandidateIsStringAlias() {
type Foo string
matcher := HasSameTypeAs(Foo(""))
var err error
// Description
ExpectThat(matcher.Description(), MatchesRegexp("has type .*Foo"))
// string alias
err = matcher.Matches(Foo("taco"))
ExpectEq(nil, err)
// string
err = matcher.Matches("taco")
ExpectThat(err, Error(Equals("which has type string")))
}