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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| package uibackend | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net" | ||
| "os" | ||
| "os/exec" | ||
| "testing" | ||
| "time" | ||
| ) | ||
|
|
||
| func TestGetDnsStats_NoUpstreamServers(t *testing.T) { | ||
| // Start a temporary dnsmasq instance | ||
| dnsmasqCmd := exec.Command("dnsmasq", "--port=12345", "--cache-size=100", "--no-daemon", "--no-resolv") // Adjust arguments as needed | ||
| if err := dnsmasqCmd.Start(); err != nil { | ||
| t.Fatalf("Failed to start dnsmasq: %v", err) | ||
| } | ||
| defer func() { | ||
| if err := dnsmasqCmd.Process.Kill(); err != nil { | ||
| t.Errorf("Failed to kill dnsmasq: %v", err) | ||
| } | ||
| }() | ||
|
|
||
| // Wait for dnsmasq to start listening | ||
| for i := 0; i < 10; i++ { | ||
| if conn, err := net.DialTimeout("tcp", "localhost:12345", 1*time.Second); err == nil { | ||
| conn.Close() | ||
| break | ||
| } | ||
| time.Sleep(100 * time.Millisecond) | ||
| } | ||
|
|
||
| stats, err := getDnsStats("localhost", 12345) | ||
| if err != nil { | ||
| t.Fatalf("getDnsStats failed: %v", err) | ||
| } | ||
|
|
||
| // Assertions | ||
| if stats.CacheSize != 100 { | ||
| t.Errorf("Unexpected CacheSize: got %d, want %d", stats.CacheSize, 100) | ||
| } | ||
|
|
||
| // Check for upstream servers. Since we started with --no-resolv, there shouldn't be any upstream servers initially. | ||
| if len(stats.UpstreamServers) != 0 { | ||
| t.Errorf("Unexpected Upstream Servers found: %v", stats.UpstreamServers) | ||
| } | ||
|
|
||
| } | ||
|
|
||
| func TestGetDnsStats_WithUpstreamServers(t *testing.T) { | ||
| // Test with resolv-file, simulating an upstream server | ||
| resolvFileContent := "nameserver 8.8.4.4" // Example upstream server | ||
| resolvFilePath := "/tmp/resolv.conf" // Choose a temporary file | ||
| err := writeTempFile(resolvFilePath, resolvFileContent) | ||
| if err != nil { | ||
| t.Fatalf("Failed to write temporary resolv file: %v", err) | ||
| } | ||
|
|
||
| // Restart dnsmasq with the resolv file | ||
| dnsmasqCmd := exec.Command("dnsmasq", "--port=12346", "--cache-size=100", "--no-daemon", fmt.Sprintf("--resolv-file=%s", resolvFilePath)) | ||
| if err := dnsmasqCmd.Start(); err != nil { | ||
| t.Fatalf("Failed to restart dnsmasq with resolv-file: %v", err) | ||
| } | ||
| defer func() { | ||
| if err := dnsmasqCmd.Process.Kill(); err != nil { | ||
| t.Errorf("Failed to kill dnsmasq: %v", err) | ||
| } | ||
| }() | ||
| for i := 0; i < 10; i++ { | ||
| if conn, err := net.DialTimeout("tcp", "localhost:12346", 1*time.Second); err == nil { | ||
| conn.Close() | ||
| break | ||
| } | ||
| time.Sleep(100 * time.Millisecond) | ||
| } | ||
|
|
||
| stats, err := getDnsStats("localhost", 12346) | ||
| if err != nil { | ||
| t.Fatalf("getDnsStats failed with resolv-file: %v", err) | ||
| } | ||
| if len(stats.UpstreamServers) != 1 { | ||
| t.Errorf("Expected Upstream Servers but found none") | ||
| } | ||
| if stats.UpstreamServers[0].ServerURL != "8.8.4.4#53" { | ||
| t.Errorf("Expected google upstream Servers but found something else") | ||
| } | ||
| } | ||
|
|
||
| // Helper function to write to a temporary file | ||
| func writeTempFile(filePath, content string) error { // ... (implementation remains the same) | ||
| file, err := os.Create(filePath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| _, err = file.WriteString(content) | ||
| return err | ||
| } |
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