diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f1f4207..281d3cd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,7 +20,12 @@ jobs:
         run: go mod tidy && git diff-index --quiet HEAD || { >&2 echo "Stale go.{mod,sum} detected. This can be fixed with 'go mod tidy'."; exit 1; }
 
       - name: Test
-        run: go test -count 100 ./...
+        run: go test -count 100 ./... -coverprofile="codecov.report"
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
   golangci-lint:
     runs-on: ubuntu-latest
diff --git a/gabs.go b/gabs.go
index b846954..04b3e06 100644
--- a/gabs.go
+++ b/gabs.go
@@ -47,7 +47,7 @@ var (
 	// the intended operation.
 	ErrNotObj = errors.New("not an object")
 
-	// ErrInvalidQuery is returned when a seach query was not valid.
+	// ErrInvalidQuery is returned when a search query was not valid.
 	ErrInvalidQuery = errors.New("invalid search query")
 
 	// ErrNotArray is returned when a target is not an array but needs to be for
@@ -177,9 +177,6 @@ func (g *Container) searchStrict(allowWildcard bool, hierarchy ...string) (*Cont
 			if err != nil {
 				return nil, fmt.Errorf("failed to resolve path segment '%v': found array but segment value '%v' could not be parsed into array index: %v", target, pathSeg, err)
 			}
-			if index < 0 {
-				return nil, fmt.Errorf("failed to resolve path segment '%v': found array but index '%v' is invalid", target, pathSeg)
-			}
 			if len(typedObj) <= index {
 				return nil, fmt.Errorf("failed to resolve path segment '%v': found array but index '%v' exceeded target array size of '%v'", target, pathSeg, len(typedObj))
 			}
@@ -720,7 +717,7 @@ func walkObject(path string, obj, flat map[string]interface{}, includeEmpty bool
 		flat[path] = struct{}{}
 	}
 	for elePath, v := range obj {
-		if len(path) > 0 {
+		if path != "" {
 			elePath = path + "." + elePath
 		}
 		switch t := v.(type) {
@@ -740,7 +737,7 @@ func walkArray(path string, arr []interface{}, flat map[string]interface{}, incl
 	}
 	for i, ele := range arr {
 		elePath := strconv.Itoa(i)
-		if len(path) > 0 {
+		if path != "" {
 			elePath = path + "." + elePath
 		}
 		switch t := ele.(type) {
@@ -897,7 +894,7 @@ func ParseJSONDecoder(decoder *json.Decoder) (*Container, error) {
 
 // ParseJSONFile reads a file and unmarshals the contents into a *Container.
 func ParseJSONFile(path string) (*Container, error) {
-	if len(path) > 0 {
+	if path != "" {
 		cBytes, err := os.ReadFile(path)
 		if err != nil {
 			return nil, err
diff --git a/gabs_test.go b/gabs_test.go
index f8429e5..ef72350 100644
--- a/gabs_test.go
+++ b/gabs_test.go
@@ -217,7 +217,7 @@ func TestJSONPointer(t *testing.T) {
 
 			var result *Container
 			result, err = root.JSONPointer(test.path)
-			if len(test.err) > 0 {
+			if test.err != "" {
 				if err == nil {
 					tt.Errorf("Expected error: %v", test.err)
 				} else if exp, act := test.err, err.Error(); exp != act {
@@ -550,7 +550,7 @@ func TestDeletes(t *testing.T) {
 			}
 		}
 	}`))
-
+	_ = jsonParsed.Delete()
 	if err := jsonParsed.Delete("outter", "inner", "value2"); err != nil {
 		t.Error(err)
 	}
@@ -890,6 +890,8 @@ func TestArrayConcat(t *testing.T) {
 	if result != expected {
 		t.Errorf("Non matched output: %v != %v", result, expected)
 	}
+	//
+	jsonObj.ArrayConcat(10)
 }
 
 func TestArrayConcatP(t *testing.T) {