github.com/elfadel/cilium@v1.6.12/pkg/datapath/loader/template_test.go (about)

     1  // Copyright 2019 Authors of Cilium
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // +build !privileged_tests
    16  
    17  package loader
    18  
    19  import (
    20  	"bytes"
    21  
    22  	"github.com/cilium/cilium/pkg/checker"
    23  	"github.com/cilium/cilium/pkg/datapath/linux"
    24  	"github.com/cilium/cilium/pkg/testutils"
    25  
    26  	. "gopkg.in/check.v1"
    27  )
    28  
    29  func (s *LoaderTestSuite) TestWrap(c *C) {
    30  	var (
    31  		realEPBuffer   bytes.Buffer
    32  		templateBuffer bytes.Buffer
    33  	)
    34  
    35  	realEP := testutils.NewTestEndpoint()
    36  	template := wrap(&realEP, nil)
    37  	dp := linux.NewDatapath(linux.DatapathConfiguration{}, nil)
    38  
    39  	// Write the configuration that should be the same, and verify it is.
    40  	err := dp.WriteTemplateConfig(&realEPBuffer, &realEP)
    41  	c.Assert(err, IsNil)
    42  	err = dp.WriteTemplateConfig(&templateBuffer, template)
    43  	c.Assert(err, IsNil)
    44  	c.Assert(realEPBuffer.String(), checker.DeepEquals, templateBuffer.String())
    45  
    46  	// Write with the static data, and verify that the buffers differ.
    47  	// Note this isn't an overly strong test because it only takes one
    48  	// character to change for this test to pass, but we would ideally
    49  	// define every bit of static data differently in the templates.
    50  	realEPBuffer.Reset()
    51  	templateBuffer.Reset()
    52  	err = dp.WriteEndpointConfig(&realEPBuffer, &realEP)
    53  	c.Assert(err, IsNil)
    54  	err = dp.WriteEndpointConfig(&templateBuffer, template)
    55  	c.Assert(err, IsNil)
    56  	c.Assert(realEPBuffer.String(), Not(Equals), templateBuffer.String())
    57  }