feat: add function to read data from files

common/general/general.go

@@ -68,6 +68,22 @@ func ExecCommand(name string, stdinInput string, args ...string) (string, error)
 	return out.String(), nil
 }
 
+// ReadDataFromFile - function to read data from file
+func ReadDataFromFile(filePath string) (string, error) {
+	file, err := os.Open(filePath)
+	if err != nil {
+		return "", err
+	}
+	defer file.Close()
+
+	content, err := io.ReadAll(file)
+	if err != nil {
+		return "", err
+	}
+
+	return string(content), nil
+}
+
 // CreateTempFile - function to create temp file
 func CreateTempFile(data string) (string, error) {
 	trimmedData := strings.TrimSpace(data)

common/general/general_test.go

@@ -13,6 +13,9 @@ import (
 )
 
 const (
+	simpleSampleText     = "Testing"
+	simpleSampleTextPath = "../../samples/simple_file.txt"
+
 	simpleContractPath     = "../../samples/simple_contract.yaml"
 	certificateDownloadUrl = "https://cloud.ibm.com/media/docs/downloads/hyper-protect-container-runtime/ibm-hyper-protect-container-runtime-1-0-s390x-15-encrypt.crt"
 
@@ -52,10 +55,20 @@ func TestExecCommandUserInput(t *testing.T) {
 	assert.NoError(t, err)
 }
 
+// Testcase to check if ReadDataFromFile() can read data from file
+func TestReadDataFromFile(t *testing.T) {
+	content, err := ReadDataFromFile(simpleSampleTextPath)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	assert.Equal(t, content, simpleSampleText)
+	assert.NoError(t, err)
+}
+
 // Testcase to check if CreateTempFile() can create and modify temp files
 func TestCreateTempFile(t *testing.T) {
-	text := "Testing"
-	tmpfile, err := CreateTempFile(text)
+	tmpfile, err := CreateTempFile(simpleSampleText)
 
 	file, err1 := os.Open(tmpfile)
 	if err1 != nil {
@@ -73,14 +86,13 @@ func TestCreateTempFile(t *testing.T) {
 		fmt.Println(err1)
 	}
 
-	assert.Equal(t, text, string(content))
+	assert.Equal(t, simpleSampleText, string(content))
 	assert.NoError(t, err)
 }
 
 // Testcase to check TestRemoveTempFile() removes a file
 func TestRemoveTempFile(t *testing.T) {
-	text := "Testing"
-	tmpfile, err := CreateTempFile(text)
+	tmpfile, err := CreateTempFile(simpleSampleText)
 	if err != nil {
 		fmt.Println(err)
 	}

samples/simple_file.txt

@@ -0,0 +1 @@
+Testing