test: Adding fuzz testing for common util

Signed-off-by: Shubham Chaudhary <[email protected]>

go.mod

@@ -3,6 +3,7 @@ module github.com/litmuschaos/litmus-go
 go 1.18
 
 require (
+	github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24
 	github.com/Azure/azure-sdk-for-go v56.1.0+incompatible
 	github.com/Azure/go-autorest/autorest v0.11.18
 	github.com/Azure/go-autorest/autorest/azure/auth v0.5.7
@@ -59,6 +60,7 @@ require (
 	github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stretchr/objx v0.2.0 // indirect
 	go.opencensus.io v0.23.0 // indirect
 	golang.org/x/crypto v0.16.0 // indirect
 	golang.org/x/net v0.19.0 // indirect

go.sum

@@ -39,6 +39,8 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 h1:bvDV9vkmnHYOMsOr4WLk+Vo07yKIzd94sVoIqshQ4bU=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
 github.com/Azure/azure-sdk-for-go v56.1.0+incompatible h1:Ofcecdw3F1ZqnpDEZcLzH9Hq0P4Y5Si8+EioXJSamJs=
 github.com/Azure/azure-sdk-for-go v56.1.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
@@ -480,6 +482,7 @@ github.com/spf13/viper v1.7.0/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5q
 github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

pkg/utils/common/common_fuzz_test.go

@@ -1,11 +1,15 @@
 package common
 
 import (
-	"github.com/stretchr/testify/assert"
 	"regexp"
 	"strconv"
 	"strings"
 	"testing"
+
+	"github.com/litmuschaos/litmus-go/pkg/types"
+	fuzz "github.com/AdaLogics/go-fuzz-headers"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func FuzzRandomInterval(f *testing.F) {
@@ -38,3 +42,112 @@ func FuzzRandomInterval(f *testing.F) {
 		}
 	})
 }
+
+func FuzzGetContainerNames(f *testing.F) {
+
+	f.Fuzz(func(t *testing.T, data []byte) {
+		fuzzConsumer := fuzz.NewConsumer(data)
+		targetStruct := &struct {
+			chaosDetails types.ChaosDetails
+		}{}
+		err := fuzzConsumer.GenerateStruct(targetStruct)
+		if err != nil {
+			return
+		}
+		names := GetContainerNames(&targetStruct.chaosDetails)
+		require.Equal(t, len(names), len(targetStruct.chaosDetails.SideCar)+1)
+	})
+}
+
+func FuzzGetSidecarVolumes(f *testing.F) {
+
+	f.Fuzz(func(t *testing.T, data []byte) {
+		fuzzConsumer := fuzz.NewConsumer(data)
+		targetStruct := &struct {
+			chaosDetails types.ChaosDetails
+		}{}
+		err := fuzzConsumer.GenerateStruct(targetStruct)
+		if err != nil {
+			return
+		}
+		volumes := GetSidecarVolumes(&targetStruct.chaosDetails)
+		var volCounts = 0
+		for _, s := range targetStruct.chaosDetails.SideCar {
+			volCounts += len(s.Secrets)
+		}
+		require.Equal(t, len(volumes), len(volumes))
+	})
+}
+
+func FuzzBuildSidecar(f *testing.F) {
+
+	f.Fuzz(func(t *testing.T, data []byte) {
+		fuzzConsumer := fuzz.NewConsumer(data)
+		targetStruct := &struct {
+			chaosDetails types.ChaosDetails
+		}{}
+		err := fuzzConsumer.GenerateStruct(targetStruct)
+		if err != nil {
+			return
+		}
+		containers := BuildSidecar(&targetStruct.chaosDetails)
+		require.Equal(t, len(containers), len(targetStruct.chaosDetails.SideCar))
+	})
+}
+
+func FuzzContains(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		fuzzConsumer := fuzz.NewConsumer(data)
+		targetStruct := &struct {
+			val   string
+			slice []string
+		}{}
+		err := fuzzConsumer.GenerateStruct(targetStruct)
+		if err != nil {
+			return
+		}
+		contains := Contains(targetStruct.val, targetStruct.slice)
+		for _, s := range targetStruct.slice {
+			if s == targetStruct.val {
+				require.True(t, contains)
+				return
+			}
+		}
+		require.False(t, contains)
+	})
+}
+
+func FuzzSubStringExistsInSlice(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data []byte) {
+		fuzzConsumer := fuzz.NewConsumer(data)
+		targetStruct := &struct {
+			val   string
+			slice []string
+		}{}
+		err := fuzzConsumer.GenerateStruct(targetStruct)
+		if err != nil {
+			return
+		}
+		contains := SubStringExistsInSlice(targetStruct.val, targetStruct.slice)
+		for _, s := range targetStruct.slice {
+			if strings.Contains(s, targetStruct.val) {
+				require.True(t, contains)
+				return
+			}
+		}
+		require.False(t, contains)
+	})
+}
+
+func FuzzGetRandomSequence(f *testing.F) {
+	f.Add("random")
+
+	f.Fuzz(func(t *testing.T, sequence string) {
+		val := GetRandomSequence(sequence)
+		if strings.ToLower(sequence) == "random" {
+			require.Contains(t, []string{"serial", "parallel"}, val)
+			return
+		}
+		require.Equal(t, sequence, val)
+	})
+}