enable testifylint linter

.golangci.yml

@@ -35,6 +35,7 @@ linters:
     - nolintlint
     - predeclared
     - revive
+    - testifylint
     - typecheck
     - unparam
   disable:
@@ -56,3 +57,9 @@ linters-settings:
             recommandations:
               - io
               - os
+  testifylint:
+    disable:
+      - expected-actual
+      - float-compare
+      - require-error
+    enabel-all: true

mem/mem_linux_test.go

@@ -11,6 +11,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestExVirtualMemory(t *testing.T) {
@@ -152,19 +153,19 @@ const invalidFile = `INVALID				Type		Size		Used		Priority
 func TestParseSwapsFile_ValidFile(t *testing.T) {
 	assert := assert.New(t)
 	stats, err := parseSwapsFile(context.Background(), strings.NewReader(validFile))
-	assert.NoError(err)
+	require.NoError(t, err)
 
-	assert.Equal(*stats[0], SwapDevice{
+	assert.Equal(SwapDevice{
 		Name:      "/dev/dm-2",
 		UsedBytes: 502566912,
 		FreeBytes: 68128825344,
-	})
+	}, *stats[0])
 
-	assert.Equal(*stats[1], SwapDevice{
+	assert.Equal(SwapDevice{
 		Name:      "/swapfile",
 		UsedBytes: 1024,
 		FreeBytes: 1024,
-	})
+	}, *stats[1])
 }
 
 func TestParseSwapsFile_InvalidFile(t *testing.T) {

mem/mem_test.go

@@ -34,9 +34,9 @@ func TestVirtualMemory(t *testing.T) {
 	}
 	t.Log(v)
 
-	assert.True(t, v.Total > 0)
-	assert.True(t, v.Available > 0)
-	assert.True(t, v.Used > 0)
+	assert.Positive(t, v.Total)
+	assert.Positive(t, v.Available)
+	assert.Positive(t, v.Used)
 
 	total := v.Used + v.Free + v.Buffers + v.Cached
 	totalStr := "used + free + buffers + cached"

net/net_linux_test.go

@@ -11,6 +11,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 
 	"github.com/shirou/gopsutil/v4/internal/common"
 )
@@ -20,7 +21,7 @@ func TestIOCountersByFileParsing(t *testing.T) {
 	tmpfile, err := os.CreateTemp("", "proc_dev_net")
 	defer os.Remove(tmpfile.Name()) // clean up
 
-	assert.Nil(t, err, "Temporary file creation failed: ", err)
+	require.NoError(t, err, "Temporary file creation failed: ", err)
 
 	cases := [4][2]string{
 		{"eth0:   ", "eth1:   "},
@@ -30,7 +31,7 @@ func TestIOCountersByFileParsing(t *testing.T) {
 	}
 	for _, testCase := range cases {
 		err = tmpfile.Truncate(0)
-		assert.Nil(t, err, "Temporary file truncating problem: ", err)
+		require.NoError(t, err, "Temporary file truncating problem: ", err)
 
 		// Parse interface name for assertion
 		interface0 := strings.TrimSpace(testCase[0])
@@ -44,13 +45,13 @@ func TestIOCountersByFileParsing(t *testing.T) {
 
 		// Write /proc/net/dev sample output
 		_, err = tmpfile.Write(proc)
-		assert.Nil(t, err, "Temporary file writing failed: ", err)
+		require.NoError(t, err, "Temporary file writing failed: ", err)
 
 		counters, err := IOCountersByFile(true, tmpfile.Name())
 
-		assert.Nil(t, err)
+		require.NoError(t, err)
 		assert.NotEmpty(t, counters)
-		assert.Equal(t, 2, len(counters))
+		assert.Len(t, counters, 2)
 		assert.Equal(t, interface0, counters[0].Name)
 		assert.Equal(t, uint64(1), counters[0].BytesRecv)
 		assert.Equal(t, uint64(2), counters[0].PacketsRecv)
@@ -76,7 +77,7 @@ func TestIOCountersByFileParsing(t *testing.T) {
 	}
 
 	err = tmpfile.Close()
-	assert.Nil(t, err, "Temporary file closing failed: ", err)
+	assert.NoError(t, err, "Temporary file closing failed: ", err)
 }
 
 func TestGetProcInodesAll(t *testing.T) {
@@ -104,7 +105,7 @@ func TestGetProcInodesAll(t *testing.T) {
 
 	root := common.HostProcWithContext(context.Background(), "")
 	v, err := getProcInodesAll(root, 0)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.NotEmpty(t, v)
 }
 
@@ -115,7 +116,7 @@ func TestConnectionsMax(t *testing.T) {
 
 	maxConn := 10
 	v, err := ConnectionsMax("tcp", maxConn)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.NotEmpty(t, v)
 
 	cxByPid := map[int32]int{}
@@ -125,7 +126,7 @@ func TestConnectionsMax(t *testing.T) {
 		}
 	}
 	for _, c := range cxByPid {
-		assert.True(t, c <= maxConn)
+		assert.LessOrEqual(t, c, maxConn)
 	}
 }
 
@@ -180,9 +181,9 @@ func TestDecodeAddress(t *testing.T) {
 		}
 		addr, err := decodeAddress(uint32(family), src)
 		if dst.Error {
-			assert.NotNil(err, src)
+			assert.Error(err, src)
 		} else {
-			assert.Nil(err, src)
+			require.NoError(t, err, src)
 			assert.Equal(dst.IP, addr.IP, src)
 			assert.Equal(dst.Port, int(addr.Port), src)
 		}
@@ -197,7 +198,7 @@ func TestReverse(t *testing.T) {
 func TestConntrackStatFileParsing(t *testing.T) {
 	tmpfile, err := os.CreateTemp("", "proc_net_stat_conntrack")
 	defer os.Remove(tmpfile.Name())
-	assert.Nil(t, err, "Temporary file creation failed: ", err)
+	require.NoError(t, err, "Temporary file creation failed: ", err)
 
 	data := []byte(`
 entries  searched found new invalid ignore delete deleteList insert insertFailed drop earlyDrop icmpError  expectNew expectCreate expectDelete searchRestart
@@ -246,12 +247,12 @@ entries  searched found new invalid ignore delete deleteList insert insertFailed
 
 	// Write data to tempfile
 	_, err = tmpfile.Write(data)
-	assert.Nil(t, err, "Temporary file writing failed: ", err)
+	require.NoError(t, err, "Temporary file writing failed: ", err)
 
 	// Function under test
 	stats, err := conntrackStatsFromFile(tmpfile.Name(), true)
-	assert.Nil(t, err)
-	assert.Equal(t, 8, len(stats), "Expected 8 results")
+	require.NoError(t, err)
+	assert.Len(t, stats, 8, "Expected 8 results")
 
 	summary := &ConntrackStat{}
 	for i, exp := range slist.Items() {
@@ -311,7 +312,7 @@ entries  searched found new invalid ignore delete deleteList insert insertFailed
 
 	// Test summary grouping
 	totals, err := conntrackStatsFromFile(tmpfile.Name(), false)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	for i, st := range totals {
 		assert.Equal(t, summary.Entries, st.Entries)
 		assert.Equal(t, summary.Searched, st.Searched)

process/process_linux_test.go

@@ -73,23 +73,23 @@ func TestSplitProcStat_fromFile(t *testing.T) {
 			continue
 		}
 		contents, err := os.ReadFile(statFile)
-		assert.NoError(t, err)
+		require.NoError(t, err)
 
 		pidStr := strconv.Itoa(int(pid))
 
 		ppid := "68044" // TODO: how to pass ppid to test?
 
 		fields := splitProcStat(contents)
-		assert.Equal(t, fields[1], pidStr)
-		assert.Equal(t, fields[2], "test(cmd).sh")
-		assert.Equal(t, fields[3], "S")
-		assert.Equal(t, fields[4], ppid)
-		assert.Equal(t, fields[5], pidStr) // pgrp
-		assert.Equal(t, fields[6], ppid)   // session
-		assert.Equal(t, fields[8], pidStr) // tpgrp
-		assert.Equal(t, fields[18], "20")  // priority
-		assert.Equal(t, fields[20], "1")   // num threads
-		assert.Equal(t, fields[52], "0")   // exit code
+		assert.Equal(t, pidStr, fields[1])
+		assert.Equal(t, "test(cmd).sh", fields[2])
+		assert.Equal(t, "S", fields[3])
+		assert.Equal(t, ppid, fields[4])
+		assert.Equal(t, pidStr, fields[5]) // pgrp
+		assert.Equal(t, ppid, fields[6])   // session
+		assert.Equal(t, pidStr, fields[8]) // tpgrp
+		assert.Equal(t, "20", fields[18])  // priority
+		assert.Equal(t, "1", fields[20])   // num threads
+		assert.Equal(t, "0", fields[52])   // exit code
 	}
 }
 

process/process_test.go

@@ -336,11 +336,11 @@ func TestLong_Name_With_Spaces(t *testing.T) {
 
 	cmd := exec.Command(tmpfile.Name() + ".exe")
 
-	assert.Nil(t, cmd.Start())
+	require.NoError(t, cmd.Start())
 	time.Sleep(100 * time.Millisecond)
 	p, err := NewProcess(int32(cmd.Process.Pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	n, err := p.Name()
 	skipIfNotImplementedErr(t, err)
@@ -383,11 +383,11 @@ func TestLong_Name(t *testing.T) {
 
 	cmd := exec.Command(tmpfile.Name() + ".exe")
 
-	assert.Nil(t, cmd.Start())
+	require.NoError(t, cmd.Start())
 	time.Sleep(100 * time.Millisecond)
 	p, err := NewProcess(int32(cmd.Process.Pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	n, err := p.Name()
 	skipIfNotImplementedErr(t, err)
@@ -642,7 +642,7 @@ func TestChildren(t *testing.T) {
 	} else {
 		cmd = exec.Command("sleep", "3")
 	}
-	assert.Nil(t, cmd.Start())
+	require.NoError(t, cmd.Start())
 	time.Sleep(100 * time.Millisecond)
 
 	c, err := p.Children()
@@ -682,50 +682,49 @@ func TestCPUTimes(t *testing.T) {
 	pid := os.Getpid()
 	process, err := NewProcess(int32(pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	spinSeconds := 0.2
 	cpuTimes0, err := process.Times()
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	// Spin for a duration of spinSeconds
 	t0 := time.Now()
 	tGoal := t0.Add(time.Duration(spinSeconds*1000) * time.Millisecond)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	for time.Now().Before(tGoal) {
 		// This block intentionally left blank
 	}
 
 	cpuTimes1, err := process.Times()
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	if cpuTimes0 == nil || cpuTimes1 == nil {
 		t.FailNow()
 	}
 	measuredElapsed := cpuTimes1.Total() - cpuTimes0.Total()
 	message := fmt.Sprintf("Measured %fs != spun time of %fs\ncpuTimes0=%v\ncpuTimes1=%v",
 		measuredElapsed, spinSeconds, cpuTimes0, cpuTimes1)
-	assert.True(t, measuredElapsed > float64(spinSeconds)/5, message)
-	assert.True(t, measuredElapsed < float64(spinSeconds)*5, message)
+	assert.Greater(t, measuredElapsed, float64(spinSeconds)/5, message)
+	assert.Less(t, measuredElapsed, float64(spinSeconds)*5, message)
 }
 
 func TestOpenFiles(t *testing.T) {
 	fp, err := os.Open("process_test.go")
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	defer func() {
-		err := fp.Close()
-		assert.Nil(t, err)
+		assert.NoError(t, fp.Close())
 	}()
 
 	pid := os.Getpid()
 	p, err := NewProcess(int32(pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	v, err := p.OpenFiles()
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	assert.NotEmpty(t, v) // test always open files.
 
 	for _, vv := range v {
@@ -740,14 +739,14 @@ func TestKill(t *testing.T) {
 	} else {
 		cmd = exec.Command("sleep", "3")
 	}
-	assert.Nil(t, cmd.Start())
+	require.NoError(t, cmd.Start())
 	time.Sleep(100 * time.Millisecond)
 	p, err := NewProcess(int32(cmd.Process.Pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	err = p.Kill()
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	cmd.Wait()
 }
 
@@ -761,7 +760,7 @@ func TestIsRunning(t *testing.T) {
 	cmd.Start()
 	p, err := NewProcess(int32(cmd.Process.Pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 	running, err := p.IsRunning()
 	skipIfNotImplementedErr(t, err)
 	if err != nil {
@@ -812,12 +811,12 @@ func TestEnviron(t *testing.T) {
 
 	cmd.Env = []string{"testkey=envvalue"}
 
-	assert.Nil(t, cmd.Start())
+	require.NoError(t, cmd.Start())
 	defer cmd.Process.Kill()
 	time.Sleep(100 * time.Millisecond)
 	p, err := NewProcess(int32(cmd.Process.Pid))
 	skipIfNotImplementedErr(t, err)
-	assert.Nil(t, err)
+	require.NoError(t, err)
 
 	envs, err := p.Environ()
 	skipIfNotImplementedErr(t, err)
@@ -877,6 +876,6 @@ func BenchmarkProcesses(b *testing.B) {
 	for i := 0; i < b.N; i++ {
 		ps, err := Processes()
 		require.NoError(b, err)
-		require.Greater(b, len(ps), 0)
+		require.NotEmpty(b, ps)
 	}
 }