tf_resource_test.go

Documentation: github.com/GoogleCloudPlatform/k8s-config-connector/pkg/tf/serialization

     1  // Copyright 2022 Google LLC
     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  package serialization
    16  
    17  import (
    18  	"fmt"
    19  	"io/ioutil"
    20  	"regexp"
    21  	"strings"
    22  	"testing"
    23  
    24  	tfprovider "github.com/GoogleCloudPlatform/k8s-config-connector/pkg/tf/provider"
    25  	"github.com/hashicorp/terraform-plugin-sdk/v2/terraform"
    26  	"gopkg.in/yaml.v2"
    27  )
    28  
    29  func TestSerializeInstance(t *testing.T) {
    30  	testSerialize(t, "testdata/instance.terraform.instancestate", "google_compute_instance", "testdata/instance.golden.tf")
    31  }
    32  
    33  func TestSerializeCluster(t *testing.T) {
    34  	testSerialize(t, "testdata/cluster.terraform.instancestate", "google_container_cluster", "testdata/cluster.golden.tf")
    35  }
    36  
    37  func testSerialize(t *testing.T, instanceStateFile, tfType, goldenFile string) string {
    38  	provider := tfprovider.NewOrLogFatal(tfprovider.DefaultConfig)
    39  	b, err := ioutil.ReadFile(instanceStateFile)
    40  	if err != nil {
    41  		t.Fatalf("failed to load instance state for instance, %s", err.Error())
    42  	}
    43  	is := &terraform.InstanceState{}
    44  	yaml.Unmarshal(b, &is)
    45  	info := &terraform.InstanceInfo{
    46  		Id:   "foo",
    47  		Type: tfType,
    48  	}
    49  	out, err := InstanceStateToHCL(is, info, provider)
    50  	if err != nil {
    51  		t.Fatalf("failed to create HCL: %s", err.Error())
    52  	}
    53  
    54  	fmt.Println(out)
    55  	if err != nil {
    56  		t.Fatal(err)
    57  	}
    58  	golden, err := ioutil.ReadFile(goldenFile)
    59  	if err != nil {
    60  		t.Fatal(err)
    61  	}
    62  	goldenLines := strings.Split(string(golden), "\n")
    63  	for linenum, line := range strings.Split(out, "\n") {
    64  		if !stringContains(goldenLines, line) {
    65  			t.Fatalf("golden value didn't match provided value: line %d, %q, not in golden.", linenum, line)
    66  		}
    67  	}
    68  	return out
    69  }
    70  
    71  func stringContains(ss []string, s string) bool {
    72  	re := regexp.MustCompile(`\s*=\s*`)
    73  	for _, sss := range ss {
    74  		if re.ReplaceAllString(sss, " = ") == re.ReplaceAllString(s, " = ") {
    75  			return true
    76  		}
    77  	}
    78  	return false
    79  }
    80
View as plain text