main_test.go

package main

import (
	"io/ioutil"
	"log"
	"os"
	"testing"
)

// TestSetup initializes test environment
func TestMain(m *testing.M) {
	// Create a temporary log file for testing
	tmpLog, err := ioutil.TempFile("", "test-install-*.log")
	if err != nil {
		log.Fatal("Could not create temp log file:", err)
	}
	defer os.Remove(tmpLog.Name())

	// Initialize logger for tests
	logger = log.New(tmpLog, "", log.LstdFlags)

	// Run tests
	code := m.Run()

	// Cleanup
	tmpLog.Close()

	os.Exit(code)
}

func TestCheckMemory(t *testing.T) {
	tests := []struct {
		name    string
		wantErr bool
	}{
		{
			name:    "Should pass on systems with sufficient memory",
			wantErr: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			// Ensure logger is initialized for each test
			if logger == nil {
				tmpLog, err := ioutil.TempFile("", "test-install-*.log")
				if err != nil {
					t.Fatal("Could not create temp log file:", err)
				}
				defer func() {
					tmpLog.Close()
					os.Remove(tmpLog.Name())
				}()
				logger = log.New(tmpLog, "", log.LstdFlags)
			}

			err := checkMemory()
			if (err != nil) != tt.wantErr {
				t.Errorf("checkMemory() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}

func TestInitLogger(t *testing.T) {
	// Save original logger
	originalLogger := logger
	defer func() {
		logger = originalLogger
	}()

	tests := []struct {
		name    string
		wantErr bool
	}{
		{
			name:    "Should initialize logger successfully",
			wantErr: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := initLogger()
			if (err != nil) != tt.wantErr {
				t.Errorf("initLogger() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}

func TestInstallPrerequisites(t *testing.T) {
	tests := []struct {
		name    string
		wantErr bool
	}{
		{
			name:    "Should check prerequisites successfully",
			wantErr: false,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			err := installPrerequisites()
			if (err != nil) != tt.wantErr {
				t.Errorf("installPrerequisites() error = %v, wantErr %v", err, tt.wantErr)
			}
		})
	}
}