add simple test for ReadContents

Author: scott-the-programmer

minikube/state_utils/io_test.go

@@ -0,0 +1,37 @@
+package state_utils
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func TestReadContents(t *testing.T) {
+	// Create a temporary file for testing
+	tempFile, err := ioutil.TempFile("", "test")
+	if err != nil {
+		t.Fatalf("Error creating temp file: %v", err)
+	}
+	defer os.Remove(tempFile.Name())
+
+	// Write some content to the temporary file
+	testContent := "This is a test content."
+	_, err = tempFile.WriteString(testContent)
+	if err != nil {
+		t.Fatalf("Error writing to temp file: %v", err)
+	}
+
+	// Close the temporary file
+	tempFile.Close()
+
+	// Test the ReadContents function
+	result, err := ReadContents(tempFile.Name())
+	if err != nil {
+		t.Fatalf("Error reading contents: %v", err)
+	}
+
+	// Check if the content read matches the expected content
+	if result != testContent {
+		t.Errorf("Expected content '%s', got '%s'", testContent, result)
+	}
+}