CSPL-3974 Fix unit tests by implementing HeadObject in mock client

Author: kasiakoziol

pkg/splunk/test/awss3client.go

@@ -104,6 +104,23 @@ func (mockClient MockAWSS3Client) GetObject(ctx context.Context, input *s3.GetOb
 	return output, nil
 }
 
+// HeadObject is a mock call to HeadObject
+func (mockClient MockAWSS3Client) HeadObject(ctx context.Context, input *s3.HeadObjectInput, options ...func(*s3.Options)) (*s3.HeadObjectOutput, error) {
+	output := &s3.HeadObjectOutput{}
+
+	tmp, err := json.Marshal(mockClient.Objects)
+	if err != nil {
+		return nil, err
+	}
+
+	err = json.Unmarshal(tmp, &output.ETag)
+	if err != nil {
+		return nil, err
+	}
+
+	return output, nil
+}
+
 // ListObjectsV2 is a mock call to ListObjectsV2
 func (mockClient MockAWSS3ClientError) ListObjectsV2(ctx context.Context, input *s3.ListObjectsV2Input, options ...func(*s3.Options)) (*s3.ListObjectsV2Output, error) {
 	return &s3.ListObjectsV2Output{}, errors.New("Dummy Error")
@@ -114,6 +131,11 @@ func (mockClient MockAWSS3ClientError) GetObject(ctx context.Context, input *s3.
 	return &s3.GetObjectOutput{}, errors.New("Dummy Error")
 }
 
+// HeadObject is a mock call to HeadObject
+func (mockClient MockAWSS3ClientError) HeadObject(ctx context.Context, input *s3.HeadObjectInput, options ...func(*s3.Options)) (*s3.HeadObjectOutput, error) {
+	return &s3.HeadObjectOutput{}, errors.New("Dummy Error")
+}
+
 // MockAWSDownloadClient is mock aws client for download
 type MockAWSDownloadClient struct{}