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statsprinter_test.go
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statsprinter_test.go
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package main
import (
"bytes"
"fmt"
"io"
"os"
"testing"
"time"
"github.com/gookit/color"
"github.com/stretchr/testify/assert"
)
// dummyPrinter is a fake test implementation
// of a printer that does nothing.
type dummyPrinter struct{}
func (fp *dummyPrinter) printStart(_ string, _ uint16) {}
func (fp *dummyPrinter) printProbeSuccess(_ string, _ userInput, _ uint, _ float32) {}
func (fp *dummyPrinter) printProbeFail(_ userInput, _ uint) {}
func (fp *dummyPrinter) printRetryingToResolve(_ string) {}
func (fp *dummyPrinter) printTotalDownTime(_ time.Duration) {}
func (fp *dummyPrinter) printStatistics(_ tcping) {}
func (fp *dummyPrinter) printVersion() {}
func (fp *dummyPrinter) printInfo(_ string, _ ...interface{}) {}
func (fp *dummyPrinter) printError(_ string, _ ...interface{}) {}
func TestDurationToString(t *testing.T) {
t.Parallel()
tests := []struct {
name string
duration time.Duration
want string
}{
{
name: "1 second",
duration: time.Duration(time.Second),
want: "1 second",
},
{
name: "59 seconds",
duration: time.Duration(59 * time.Second),
want: "59 seconds",
},
{
name: "1 minute",
duration: time.Duration(time.Minute),
want: "1 minute",
},
{
name: "59 minutes 0 seconds",
duration: time.Duration(59 * time.Minute),
want: "59 minutes 0 seconds",
},
{
name: "1 minute 5 seconds",
duration: time.Duration(time.Minute + 5*time.Second),
want: "1 minute 5 seconds",
},
{
name: "59 minutes 5 seconds",
duration: time.Duration(59*time.Minute + 5*time.Second),
want: "59 minutes 5 seconds",
},
{
name: "1 hour",
duration: time.Duration(time.Hour),
want: "1 hour",
},
{
name: "1 hour 10 minutes 5 seconds",
duration: time.Duration(time.Hour + 10*time.Minute + 5*time.Second),
want: "1 hour 10 minutes 5 seconds",
},
{
name: "59 hours 0 minutes 0 seconds",
duration: time.Duration(59 * time.Hour),
want: "59 hours 0 minutes 0 seconds",
},
{
name: "59 hours 10 minutes 5 seconds",
duration: time.Duration(59*time.Hour + 10*time.Minute + 5*time.Second),
want: "59 hours 10 minutes 5 seconds",
},
{
name: "0.5 seconds",
duration: time.Duration(500 * time.Millisecond),
want: "0.5 seconds",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := durationToString(tt.duration); got != tt.want {
t.Errorf("calcTime() = %v, want %v", got, tt.want)
}
})
}
}
func getProbeSuccessTests() []struct {
name string
showTimestamp bool
useHostname bool
showLocalAddress bool
expectedOutput string
} {
return []struct {
name string
showTimestamp bool
useHostname bool
showLocalAddress bool
expectedOutput string
}{
{
name: "With hostname, no timestamp",
showTimestamp: false,
useHostname: true,
showLocalAddress: false,
expectedOutput: "Reply from %s (%s) on port %d TCP_conn=%d time=%.3f ms\n",
},
{
name: "With hostname, with timestamp",
showTimestamp: true,
useHostname: true,
showLocalAddress: false,
expectedOutput: "%s Reply from %s (%s) on port %d TCP_conn=%d time=%.3f ms\n",
},
{
name: "Without hostname, with timestamp",
showTimestamp: true,
useHostname: false,
showLocalAddress: false,
expectedOutput: "%s Reply from %s on port %d TCP_conn=%d time=%.3f ms\n",
},
{
name: "Without hostname, no timestamp",
showTimestamp: false,
useHostname: false,
showLocalAddress: false,
expectedOutput: "Reply from %s on port %d TCP_conn=%d time=%.3f ms\n",
},
{
name: "Without hostname, no timestamp, with show local address",
showTimestamp: false,
useHostname: false,
showLocalAddress: true,
expectedOutput: "Reply from %s on port %d using %s TCP_conn=%d time=%.3f ms\n",
},
{
name: "With hostname, no timestamp, with show local address",
showTimestamp: false,
useHostname: true,
showLocalAddress: true,
expectedOutput: "Reply from %s (%s) on port %d using %s TCP_conn=%d time=%.3f ms\n",
},
}
}
func TestPrintProbeSuccess(t *testing.T) {
testCases := getProbeSuccessTests()
stats := createTestStats(t)
stats.userInput.hostname = "example.com"
streak := uint(5)
rtt := float32(15.123)
localAddr := "127.0.0.1:4567"
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
pp := newPlanePrinter(&tc.showTimestamp)
read, write, _ := os.Pipe()
os.Stdout = write
if !tc.useHostname {
stats.userInput.hostname = ""
} else {
stats.userInput.hostname = "example.com"
}
if tc.showLocalAddress {
stats.userInput.showLocalAddress = true
}
pp.printProbeSuccess(localAddr, stats.userInput, streak, rtt)
write.Close()
var buf bytes.Buffer
if _, err := io.Copy(&buf, read); err != nil {
t.Fatalf("Failed to read from pipe: %v", err)
}
output := buf.String()
var expected string
if tc.showTimestamp {
timestamp := time.Now().Format("2006-01-02 15:04:05")
if tc.showLocalAddress && tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, localAddr, streak, rtt)
} else if tc.showLocalAddress {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.ip, stats.userInput.port, localAddr, streak, rtt)
} else if tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, streak, rtt)
} else {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.ip, stats.userInput.port, streak, rtt)
}
} else {
if tc.showLocalAddress && tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, localAddr, streak, rtt)
} else if tc.showLocalAddress {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.ip, stats.userInput.port, localAddr, streak, rtt)
} else if tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, streak, rtt)
} else {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.ip, stats.userInput.port, streak, rtt)
}
}
assert.Equal(t, expected, output)
})
}
}
func TestPrintProbeFail(t *testing.T) {
stats := createTestStats(t)
stats.userInput.hostname = "example.com"
streak := uint(5)
testCases := []struct {
name string
showTimestamp bool
useHostname bool
expectedOutput string
}{
{
name: "With hostname, no timestamp",
showTimestamp: false,
useHostname: true,
expectedOutput: "No reply from %s (%s) on port %d TCP_conn=%d\n",
},
{
name: "With hostname, with timestamp",
showTimestamp: true,
useHostname: true,
expectedOutput: "%s No reply from %s (%s) on port %d TCP_conn=%d\n",
},
{
name: "Without hostname, with timestamp",
showTimestamp: true,
useHostname: false,
expectedOutput: "%s No reply from %s on port %d TCP_conn=%d\n",
},
{
name: "Without hostname, no timestamp",
showTimestamp: false,
useHostname: false,
expectedOutput: "No reply from %s on port %d TCP_conn=%d\n",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
pp := newColorPrinter(&tc.showTimestamp)
read, write, _ := os.Pipe()
os.Stdout = write
color.SetOutput(write)
color.Disable()
if !tc.useHostname {
stats.userInput.hostname = ""
}
pp.printProbeFail(stats.userInput, streak)
write.Close()
var buf bytes.Buffer
if _, err := io.Copy(&buf, read); err != nil {
t.Fatalf("Failed to read from pipe: %v", err)
}
output := buf.String()
var expected string
if tc.showTimestamp {
timestamp := time.Now().Format("2006-01-02 15:04:05")
if tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, streak)
} else {
expected = fmt.Sprintf(tc.expectedOutput, timestamp, stats.userInput.ip, stats.userInput.port, streak)
}
} else {
if tc.useHostname {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.hostname, stats.userInput.ip, stats.userInput.port, streak)
} else {
expected = fmt.Sprintf(tc.expectedOutput, stats.userInput.ip, stats.userInput.port, streak)
}
}
assert.Equal(t, expected, output)
})
}
}