package system import ( "fmt" "runtime" "testing" "github.com/influxdata/telegraf/testutil" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestProcesses(t *testing.T) { processes := &Processes{ execPS: execPS, readProcFile: readProcFile, } var acc testutil.Accumulator err := processes.Gather(&acc) require.NoError(t, err) assert.True(t, acc.HasIntField("processes", "running")) assert.True(t, acc.HasIntField("processes", "sleeping")) assert.True(t, acc.HasIntField("processes", "stopped")) assert.True(t, acc.HasIntField("processes", "total")) total, ok := acc.Get("processes") require.True(t, ok) assert.True(t, total.Fields["total"].(int64) > 0) } func TestFromPS(t *testing.T) { processes := &Processes{ execPS: testExecPS, forcePS: true, } var acc testutil.Accumulator err := processes.Gather(&acc) require.NoError(t, err) fields := getEmptyFields() fields["blocked"] = int64(1) fields["running"] = int64(4) fields["sleeping"] = int64(34) fields["total"] = int64(39) acc.AssertContainsTaggedFields(t, "processes", fields, map[string]string{}) } func TestFromPSError(t *testing.T) { processes := &Processes{ execPS: testExecPSError, forcePS: true, } var acc testutil.Accumulator err := processes.Gather(&acc) require.Error(t, err) } func TestFromProcFiles(t *testing.T) { if runtime.GOOS != "linux" { t.Skip("This test only runs on linux") } tester := tester{} processes := &Processes{ readProcFile: tester.testProcFile, forceProc: true, } var acc testutil.Accumulator err := processes.Gather(&acc) require.NoError(t, err) fields := getEmptyFields() fields["sleeping"] = tester.calls fields["total_threads"] = tester.calls * 2 fields["total"] = tester.calls acc.AssertContainsTaggedFields(t, "processes", fields, map[string]string{}) } func testExecPS() ([]byte, error) { return []byte(testPSOut), nil } // struct for counting calls to testProcFile type tester struct { calls int64 } func (t *tester) testProcFile(_ string) ([]byte, error) { t.calls++ return []byte(fmt.Sprintf(testProcStat, "S", "2")), nil } func testExecPSError() ([]byte, error) { return []byte(testPSOut), fmt.Errorf("ERROR!") } const testPSOut = ` STAT S S S S R R S S Ss Ss S SNs Ss Ss S R+ S U S S S S Ss S+ Ss S S+ S+ Ss S+ Ss S R+ Ss S S+ S+ Ss S+ ` const testProcStat = `10 (rcuob/0) %s 2 0 0 0 -1 2129984 0 0 0 0 0 0 0 0 20 0 %s 0 11 0 0 18446744073709551615 0 0 0 0 0 0 0 2147483647 0 18446744073709551615 0 0 17 0 0 0 0 0 0 0 0 0 0 0 0 0 0 `