Use require package instead of assert while performing fs operations in unit tests

utils/testutils/test_directory_utils.go

@@ -1,25 +1,26 @@
 package testutils
 
 import (
-	"github.com/stretchr/testify/assert"
-	"github.com/trailofbits/medusa/utils"
 	"os"
 	"path/filepath"
 	"testing"
+
+	"github.com/stretchr/testify/require"
+	"github.com/trailofbits/medusa/utils"
 )
 
 // CopyToTestDirectory copies files or directories from the provided filePath (relative to ./tests/contracts/) to an
 // ephemeral directory used for unit tests.
 func CopyToTestDirectory(t *testing.T, filePath string) string {
 	// Construct our file path relative to our working directory
 	cwd, err := os.Getwd()
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	sourcePath := filepath.Join(cwd, filePath)
 
 	// Verify the file path exists
 	sourcePathInfo, err := os.Stat(sourcePath)
-	assert.False(t, os.IsNotExist(err))
-	assert.NotNil(t, sourcePathInfo)
+	require.False(t, os.IsNotExist(err))
+	require.NotNil(t, sourcePathInfo)
 
 	// Obtain an isolated test directory path.
 	targetDirectory := filepath.Join(t.TempDir(), "medusaTest")
@@ -30,11 +31,11 @@ func CopyToTestDirectory(t *testing.T, filePath string) string {
 	} else {
 		err = utils.CopyFile(sourcePath, targetPath)
 	}
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	// Get a normalized absolute path
 	targetPath, err = filepath.Abs(targetPath)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	return targetPath
 }
 
@@ -44,12 +45,12 @@ func CopyToTestDirectory(t *testing.T, filePath string) string {
 func ExecuteInDirectory(t *testing.T, testPath string, method func()) {
 	// Backup our old working directory
 	cwd, err := os.Getwd()
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	// Check if the test path refers to a file or directory, as we'll want to change our working directory to a
 	// directory path.
 	testPathInfo, err := os.Stat(testPath)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	// Ensure we obtained a directory from our path
 	testDirectory := testPath
@@ -59,12 +60,12 @@ func ExecuteInDirectory(t *testing.T, testPath string, method func()) {
 
 	// Change our working directory to the test directory
 	err = os.Chdir(testDirectory)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
 	// Execute the given method
 	method()
 
 	// Restore our working directory (we must leave the test directory or else clean up will fail post testing)
 	err = os.Chdir(cwd)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 }