Golang assert.Nil函数代码示例

func TestOutputService4ProtocolTestListsCase2(t *testing.T) {
	sess := session.New()
	svc := NewOutputService4ProtocolTest(sess, &aws.Config{Endpoint: aws.String("https://test")})

	buf := bytes.NewReader([]byte("{\"ListMember\": [\"a\", null], \"ListMemberMap\": [{}, null, null, {}], \"ListMemberStruct\": [{}, null, null, {}]}"))
	req, out := svc.OutputService4TestCaseOperation2Request(nil)
	req.HTTPResponse = &http.Response{StatusCode: 200, Body: ioutil.NopCloser(buf), Header: http.Header{}}

	// set headers

	// unmarshal response
	jsonrpc.UnmarshalMeta(req)
	jsonrpc.Unmarshal(req)
	assert.NoError(t, req.Error)

	// assert response
	assert.NotNil(t, out) // ensure out variable is used
	assert.Equal(t, "a", *out.ListMember[0])
	assert.Nil(t, out.ListMember[1])
	assert.Nil(t, out.ListMemberMap[1])
	assert.Nil(t, out.ListMemberMap[2])
	assert.Nil(t, out.ListMemberStruct[1])
	assert.Nil(t, out.ListMemberStruct[2])

}

func TestCanSupportStructWithNestedPointers(t *testing.T) {
	assert := assert.New(t)
	data := struct{ A *struct{ B int } }{}
	result, err := Search("A.B", data)
	assert.Nil(err)
	assert.Nil(result)
}

func TestValidPrecompiledExpressionSearches(t *testing.T) {
	assert := assert.New(t)
	data := make(map[string]interface{})
	data["foo"] = "bar"
	precompiled, err := Compile("foo")
	assert.Nil(err)
	result, err := precompiled.Search(data)
	assert.Nil(err)
	assert.Equal("bar", result)
}

// Use DynamoDB methods for simplicity
func TestPagination(t *testing.T) {
	db := dynamodb.New(unit.Session)
	tokens, pages, numPages, gotToEnd := []string{}, []string{}, 0, false

	reqNum := 0
	resps := []*dynamodb.ListTablesOutput{
		{TableNames: []*string{aws.String("Table1"), aws.String("Table2")}, LastEvaluatedTableName: aws.String("Table2")},
		{TableNames: []*string{aws.String("Table3"), aws.String("Table4")}, LastEvaluatedTableName: aws.String("Table4")},
		{TableNames: []*string{aws.String("Table5")}},
	}

	db.Handlers.Send.Clear() // mock sending
	db.Handlers.Unmarshal.Clear()
	db.Handlers.UnmarshalMeta.Clear()
	db.Handlers.ValidateResponse.Clear()
	db.Handlers.Build.PushBack(func(r *request.Request) {
		in := r.Params.(*dynamodb.ListTablesInput)
		if in == nil {
			tokens = append(tokens, "")
		} else if in.ExclusiveStartTableName != nil {
			tokens = append(tokens, *in.ExclusiveStartTableName)
		}
	})
	db.Handlers.Unmarshal.PushBack(func(r *request.Request) {
		r.Data = resps[reqNum]
		reqNum++
	})

	params := &dynamodb.ListTablesInput{Limit: aws.Int64(2)}
	err := db.ListTablesPages(params, func(p *dynamodb.ListTablesOutput, last bool) bool {
		numPages++
		for _, t := range p.TableNames {
			pages = append(pages, *t)
		}
		if last {
			if gotToEnd {
				assert.Fail(t, "last=true happened twice")
			}
			gotToEnd = true
		}
		return true
	})

	assert.Equal(t, []string{"Table2", "Table4"}, tokens)
	assert.Equal(t, []string{"Table1", "Table2", "Table3", "Table4", "Table5"}, pages)
	assert.Equal(t, 3, numPages)
	assert.True(t, gotToEnd)
	assert.Nil(t, err)
	assert.Nil(t, params.ExclusiveStartTableName)
}

func TestCanSupportUserDefinedStructsRef(t *testing.T) {
	assert := assert.New(t)
	s := scalars{Foo: "one", Bar: "bar"}
	result, err := Search("Foo", &s)
	assert.Nil(err)
	assert.Equal("one", result)
}

func TestCanSupportStructWithFilterProjection(t *testing.T) {
	assert := assert.New(t)
	data := sliceType{A: "foo", B: []scalars{scalars{"f1", "b1"}, scalars{"correct", "b2"}}}
	result, err := Search("B[? `true` ].Foo", data)
	assert.Nil(err)
	assert.Equal([]interface{}{"f1", "correct"}, result)
}

func TestCanSupportStructWithSlice(t *testing.T) {
	assert := assert.New(t)
	data := sliceType{A: "foo", B: []scalars{scalars{"f1", "b1"}, scalars{"correct", "b2"}}}
	result, err := Search("B[-1].Foo", data)
	assert.Nil(err)
	assert.Equal("correct", result)
}

func TestEC2RoleProviderExpiryWindowIsExpired(t *testing.T) {
	server := initTestServer("2014-12-16T01:51:37Z", false)
	defer server.Close()

	p := &ec2rolecreds.EC2RoleProvider{
		Client:       ec2metadata.New(session.New(), &aws.Config{Endpoint: aws.String(server.URL + "/latest")}),
		ExpiryWindow: time.Hour * 1,
	}
	p.CurrentTime = func() time.Time {
		return time.Date(2014, 12, 15, 0, 51, 37, 0, time.UTC)
	}

	assert.True(t, p.IsExpired(), "Expect creds to be expired before retrieve.")

	_, err := p.Retrieve()
	assert.Nil(t, err, "Expect no error, %v", err)

	assert.False(t, p.IsExpired(), "Expect creds to not be expired after retrieve.")

	p.CurrentTime = func() time.Time {
		return time.Date(2014, 12, 16, 0, 55, 37, 0, time.UTC)
	}

	assert.True(t, p.IsExpired(), "Expect creds to be expired.")
}

func TestCanSupportStructWithOrExpressions(t *testing.T) {
	assert := assert.New(t)
	data := sliceType{A: "foo", C: nil}
	result, err := Search("C || A", data)
	assert.Nil(err)
	assert.Equal("foo", result)
}

func TestCanSupportEmptyInterface(t *testing.T) {
	assert := assert.New(t)
	data := make(map[string]interface{})
	data["foo"] = "bar"
	result, err := Search("foo", data)
	assert.Nil(err)
	assert.Equal("bar", result)
}

func TestCanSupportFlattenNestedEmptySlice(t *testing.T) {
	assert := assert.New(t)
	data := nestedSlice{A: []sliceType{
		{}, {B: []scalars{{Foo: "a"}}},
	}}
	result, err := Search("A[].B[].Foo", data)
	assert.Nil(err)
	assert.Equal([]interface{}{"a"}, result)
}

func TestCanSupportProjectionsWithStructs(t *testing.T) {
	assert := assert.New(t)
	data := nestedSlice{A: []sliceType{
		{A: "first"}, {A: "second"}, {A: "third"},
	}}
	result, err := Search("A[*].A", data)
	assert.Nil(err)
	assert.Equal([]interface{}{"first", "second", "third"}, result)
}

// Use S3 for simplicity
func TestPaginationTruncation(t *testing.T) {
	client := s3.New(unit.Session)

	reqNum := 0
	resps := []*s3.ListObjectsOutput{
		{IsTruncated: aws.Bool(true), Contents: []*s3.Object{{Key: aws.String("Key1")}}},
		{IsTruncated: aws.Bool(true), Contents: []*s3.Object{{Key: aws.String("Key2")}}},
		{IsTruncated: aws.Bool(false), Contents: []*s3.Object{{Key: aws.String("Key3")}}},
		{IsTruncated: aws.Bool(true), Contents: []*s3.Object{{Key: aws.String("Key4")}}},
	}

	client.Handlers.Send.Clear() // mock sending
	client.Handlers.Unmarshal.Clear()
	client.Handlers.UnmarshalMeta.Clear()
	client.Handlers.ValidateResponse.Clear()
	client.Handlers.Unmarshal.PushBack(func(r *request.Request) {
		r.Data = resps[reqNum]
		reqNum++
	})

	params := &s3.ListObjectsInput{Bucket: aws.String("bucket")}

	results := []string{}
	err := client.ListObjectsPages(params, func(p *s3.ListObjectsOutput, last bool) bool {
		results = append(results, *p.Contents[0].Key)
		return true
	})

	assert.Equal(t, []string{"Key1", "Key2", "Key3"}, results)
	assert.Nil(t, err)

	// Try again without truncation token at all
	reqNum = 0
	resps[1].IsTruncated = nil
	resps[2].IsTruncated = aws.Bool(true)
	results = []string{}
	err = client.ListObjectsPages(params, func(p *s3.ListObjectsOutput, last bool) bool {
		results = append(results, *p.Contents[0].Key)
		return true
	})

	assert.Equal(t, []string{"Key1", "Key2"}, results)
	assert.Nil(t, err)
}

func TestWillAutomaticallyCapitalizeFieldNames(t *testing.T) {
	assert := assert.New(t)
	s := scalars{Foo: "one", Bar: "bar"}
	// Note that there's a lower cased "foo" instead of "Foo",
	// but it should still correspond to the Foo field in the
	// scalars struct
	result, err := Search("foo", &s)
	assert.Nil(err)
	assert.Equal("one", result)
}

func TestCopyDifferentStructs(t *testing.T) {
	type SrcFoo struct {
		A                int
		B                []*string
		C                map[string]*int
		SrcUnique        string
		SameNameDiffType int
		unexportedPtr    *int
		ExportedPtr      *int
	}
	type DstFoo struct {
		A                int
		B                []*string
		C                map[string]*int
		DstUnique        int
		SameNameDiffType string
		unexportedPtr    *int
		ExportedPtr      *int
	}

	// Create the initial value
	str1 := "hello"
	str2 := "bye bye"
	int1 := 1
	int2 := 2
	f1 := &SrcFoo{
		A: 1,
		B: []*string{&str1, &str2},
		C: map[string]*int{
			"A": &int1,
			"B": &int2,
		},
		SrcUnique:        "unique",
		SameNameDiffType: 1,
		unexportedPtr:    &int1,
		ExportedPtr:      &int2,
	}

	// Do the copy
	var f2 DstFoo
	awsutil.Copy(&f2, f1)

	// Values are equal
	assert.Equal(t, f2.A, f1.A)
	assert.Equal(t, f2.B, f1.B)
	assert.Equal(t, f2.C, f1.C)
	assert.Equal(t, "unique", f1.SrcUnique)
	assert.Equal(t, 1, f1.SameNameDiffType)
	assert.Equal(t, 0, f2.DstUnique)
	assert.Equal(t, "", f2.SameNameDiffType)
	assert.Equal(t, int1, *f1.unexportedPtr)
	assert.Nil(t, f2.unexportedPtr)
	assert.Equal(t, int2, *f1.ExportedPtr)
	assert.Equal(t, int2, *f2.ExportedPtr)
}