fix: Avoid trimming characters incorrectly from ProcStatus (#469)

Signed-off-by: Irvin Lim <[email protected]> Signed-off-by: Irvin Lim <[email protected]>
prometheus · Oct 11, 2022 · b3d77ec · b3d77ec
1 parent bf36102
commit b3d77ec
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Showing 3 changed files with 75 additions and 3 deletions.
diff --git a/proc_status.go b/proc_status.go
@@ -96,10 +96,10 @@ func (p Proc) NewStatus() (ProcStatus, error) {
 		kv := strings.SplitN(line, ":", 2)
 
 		// removes spaces
-		k := string(strings.TrimSpace(kv[0]))
-		v := string(strings.TrimSpace(kv[1]))
+		k := strings.TrimSpace(kv[0])
+		v := strings.TrimSpace(kv[1])
 		// removes "kB"
-		v = string(bytes.Trim([]byte(v), " kB"))
+		v = strings.TrimSuffix(v, " kB")
 
 		// value to int when possible
 		// we can skip error check here, 'cause vKBytes is not used when value is a string

diff --git a/proc_status_test.go b/proc_status_test.go
@@ -76,6 +76,20 @@ func TestProcStatusName(t *testing.T) {
 	}
 }
 
+func TestProcStatusNameTrim(t *testing.T) {
+	p, err := getProcFixtures(t).Proc(26235)
+	if err != nil {
+		t.Fatal(err)
+	}
+	s, err := p.NewStatus()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if want, have := "kube-proxy", s.Name; want != have {
+		t.Errorf("want name %s, have %s", want, have)
+	}
+}
+
 func TestProcStatusUIDs(t *testing.T) {
 	p, err := getProcFixtures(t).Proc(26231)
 	if err != nil {

diff --git a/testdata/fixtures.ttar b/testdata/fixtures.ttar
@@ -748,6 +748,64 @@ Lines: 4
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 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Directory: fixtures/proc/26235
+Mode: 755
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/proc/26235/status
+Lines: 51
+Name:   kube-proxy
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+State:  S (sleeping)
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+SigCgt: fffffffc7fc1feff
+CapInh: 0000003fffffffff
+CapPrm: 0000003fffffffff
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+CapBnd: 0000003fffffffff
+CapAmb: 0000000000000000
+Seccomp:	0
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+Cpus_allowed_list:	0-7
+Mems_allowed:	00000000,00000001
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+nonvoluntary_ctxt_switches:	1727500
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Directory: fixtures/proc/584
 Mode: 755
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -