diff --git a/src/pkg/packager/composer/extensions.go b/src/pkg/packager/composer/extensions.go
deleted file mode 100644
index 77ac73c038..0000000000
--- a/src/pkg/packager/composer/extensions.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-// SPDX-FileCopyrightText: 2021-Present The Zarf Authors
-
-// Package composer contains functions for composing components within Zarf packages.
-package composer
-
-import (
-	"github.com/defenseunicorns/zarf/src/extensions/bigbang"
-	"github.com/defenseunicorns/zarf/src/types"
-)
-
-func composeExtensions(c *types.ZarfComponent, override types.ZarfComponent, relativeTo string) {
-	bigbang.Compose(c, override, relativeTo)
-}
diff --git a/src/pkg/packager/composer/list.go b/src/pkg/packager/composer/list.go
index 3642ec562f..4f1a484ca3 100644
--- a/src/pkg/packager/composer/list.go
+++ b/src/pkg/packager/composer/list.go
@@ -11,6 +11,7 @@ import (
 	"strings"
 
 	"github.com/defenseunicorns/pkg/helpers"
+	"github.com/defenseunicorns/zarf/src/extensions/bigbang"
 	"github.com/defenseunicorns/zarf/src/pkg/layout"
 	"github.com/defenseunicorns/zarf/src/pkg/packager/deprecated"
 	"github.com/defenseunicorns/zarf/src/pkg/utils"
@@ -303,7 +304,7 @@ func (ic *ImportChain) Compose() (composed *types.ZarfComponent, err error) {
 		overrideResources(composed, node.ZarfComponent)
 		overrideActions(composed, node.ZarfComponent)
 
-		composeExtensions(composed, node.ZarfComponent, node.relativeToHead)
+		bigbang.Compose(composed, node.ZarfComponent, node.relativeToHead)
 
 		node = node.prev
 	}
diff --git a/src/pkg/packager/composer/list_test.go b/src/pkg/packager/composer/list_test.go
index 73e84a85fa..622647357c 100644
--- a/src/pkg/packager/composer/list_test.go
+++ b/src/pkg/packager/composer/list_test.go
@@ -19,19 +19,17 @@ import (
 func TestNewImportChain(t *testing.T) {
 	t.Parallel()
 
-	type testCase struct {
-		name                 string
-		head                 types.ZarfComponent
-		arch                 string
-		flavor               string
-		expectedErrorMessage string
-	}
-
-	testCases := []testCase{
+	tests := []struct {
+		name        string
+		head        types.ZarfComponent
+		arch        string
+		flavor      string
+		expectedErr string
+	}{
 		{
-			name:                 "No Architecture",
-			head:                 types.ZarfComponent{},
-			expectedErrorMessage: "architecture must be provided",
+			name:        "No Architecture",
+			head:        types.ZarfComponent{},
+			expectedErr: "architecture must be provided",
 		},
 		{
 			name: "Circular Import",
@@ -40,19 +38,18 @@ func TestNewImportChain(t *testing.T) {
 					Path: ".",
 				},
 			},
-			arch:                 "amd64",
-			expectedErrorMessage: "detected circular import chain",
+			arch:        "amd64",
+			expectedErr: "detected circular import chain",
 		},
 	}
 	testPackageName := "test-package"
-	for _, testCase := range testCases {
-		testCase := testCase
-
-		t.Run(testCase.name, func(t *testing.T) {
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
 			t.Parallel()
 
-			_, err := NewImportChain(testCase.head, 0, testPackageName, testCase.arch, testCase.flavor)
-			require.Contains(t, err.Error(), testCase.expectedErrorMessage)
+			_, err := NewImportChain(tt.head, 0, testPackageName, tt.arch, tt.flavor)
+			require.ErrorContains(t, err, tt.expectedErr)
 		})
 	}
 }
@@ -60,14 +57,6 @@ func TestNewImportChain(t *testing.T) {
 func TestCompose(t *testing.T) {
 	t.Parallel()
 
-	type testCase struct {
-		name                 string
-		ic                   *ImportChain
-		returnError          bool
-		expectedComposed     types.ZarfComponent
-		expectedErrorMessage string
-	}
-
 	firstDirectory := "hello"
 	secondDirectory := "world"
 	finalDirectory := filepath.Join(firstDirectory, secondDirectory)
@@ -76,27 +65,29 @@ func TestCompose(t *testing.T) {
 	secondDirectoryActionDefault := filepath.Join(firstDirectory, "world-dc")
 	firstDirectoryActionDefault := "hello-dc"
 
-	testCases := []testCase{
+	tests := []struct {
+		name             string
+		ic               *ImportChain
+		expectedComposed types.ZarfComponent
+	}{
 		{
 			name: "Single Component",
-			ic: createChainFromSlice([]types.ZarfComponent{
+			ic: createChainFromSlice(t, []types.ZarfComponent{
 				{
 					Name: "no-import",
 				},
 			}),
-			returnError: false,
 			expectedComposed: types.ZarfComponent{
 				Name: "no-import",
 			},
 		},
 		{
 			name: "Multiple Components",
-			ic: createChainFromSlice([]types.ZarfComponent{
-				createDummyComponent("hello", firstDirectory, "hello"),
-				createDummyComponent("world", secondDirectory, "world"),
-				createDummyComponent("today", "", "hello"),
+			ic: createChainFromSlice(t, []types.ZarfComponent{
+				createDummyComponent(t, "hello", firstDirectory, "hello"),
+				createDummyComponent(t, "world", secondDirectory, "world"),
+				createDummyComponent(t, "today", "", "hello"),
 			}),
-			returnError: false,
 			expectedComposed: types.ZarfComponent{
 				Name: "import-hello",
 				// Files should always be appended with corrected directories
@@ -243,19 +234,14 @@ func TestCompose(t *testing.T) {
 			},
 		},
 	}
-
-	for _, testCase := range testCases {
-		testCase := testCase
-
-		t.Run(testCase.name, func(t *testing.T) {
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
 			t.Parallel()
 
-			composed, err := testCase.ic.Compose()
-			if testCase.returnError {
-				require.Contains(t, err.Error(), testCase.expectedErrorMessage)
-			} else {
-				require.EqualValues(t, &testCase.expectedComposed, composed)
-			}
+			composed, err := tt.ic.Compose()
+			require.NoError(t, err)
+			require.EqualValues(t, &tt.expectedComposed, composed)
 		})
 	}
 }
@@ -263,15 +249,6 @@ func TestCompose(t *testing.T) {
 func TestMerging(t *testing.T) {
 	t.Parallel()
 
-	type testCase struct {
-		name           string
-		ic             *ImportChain
-		existingVars   []variables.InteractiveVariable
-		existingConsts []variables.Constant
-		expectedVars   []variables.InteractiveVariable
-		expectedConsts []variables.Constant
-	}
-
 	head := Node{
 		vars: []variables.InteractiveVariable{
 			{
@@ -316,7 +293,14 @@ func TestMerging(t *testing.T) {
 	tail.prev = &head
 	testIC := &ImportChain{head: &head, tail: &tail}
 
-	testCases := []testCase{
+	tests := []struct {
+		name           string
+		ic             *ImportChain
+		existingVars   []variables.InteractiveVariable
+		existingConsts []variables.Constant
+		expectedVars   []variables.InteractiveVariable
+		expectedConsts []variables.Constant
+	}{
 		{
 			name: "empty-ic",
 			ic:   &ImportChain{},
@@ -425,41 +409,40 @@ func TestMerging(t *testing.T) {
 		},
 	}
 
-	for _, testCase := range testCases {
-		testCase := testCase
-
-		t.Run(testCase.name, func(t *testing.T) {
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
 			t.Parallel()
 
-			mergedVars := testCase.ic.MergeVariables(testCase.existingVars)
-			require.EqualValues(t, testCase.expectedVars, mergedVars)
+			mergedVars := tt.ic.MergeVariables(tt.existingVars)
+			require.EqualValues(t, tt.expectedVars, mergedVars)
 
-			mergedConsts := testCase.ic.MergeConstants(testCase.existingConsts)
-			require.EqualValues(t, testCase.expectedConsts, mergedConsts)
+			mergedConsts := tt.ic.MergeConstants(tt.existingConsts)
+			require.EqualValues(t, tt.expectedConsts, mergedConsts)
 		})
 	}
 }
 
-func createChainFromSlice(components []types.ZarfComponent) (ic *ImportChain) {
+func createChainFromSlice(t *testing.T, components []types.ZarfComponent) (ic *ImportChain) {
+	t.Helper()
+
 	ic = &ImportChain{}
 	testPackageName := "test-package"
-
 	if len(components) == 0 {
 		return ic
 	}
-
 	ic.append(components[0], 0, testPackageName, ".", nil, nil)
 	history := []string{}
-
 	for idx := 1; idx < len(components); idx++ {
 		history = append(history, components[idx-1].Import.Path)
 		ic.append(components[idx], idx, testPackageName, filepath.Join(history...), nil, nil)
 	}
-
 	return ic
 }
 
-func createDummyComponent(name, importDir, subName string) types.ZarfComponent {
+func createDummyComponent(t *testing.T, name, importDir, subName string) types.ZarfComponent {
+	t.Helper()
+
 	return types.ZarfComponent{
 		Name: fmt.Sprintf("import-%s", name),
 		Import: types.ZarfComponentImport{