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fix(pkg): range parser supports single numbers

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These are `[0:X]` ranges, according to the Nagios doc.
This commit is contained in:
Emmanuel BENOîT 2024-07-20 18:17:53 +02:00
parent 7c8c624b17
commit 6d44df6216
Signed by: Emmanuel BENOîT
SSH key fingerprint: SHA256:l7PFUUF5TCDsvYeQC9OnTNz08dFY7Fvf4Hv3neIqYpg
2 changed files with 12 additions and 7 deletions
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15
pkg/perfdata/range.go
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@ -116,7 +116,7 @@ func ParseRange(input string) (*Range, error) {
case rpsInit:
if curRune == '@' {
parsed.inside = true
index += 1
index++
}
state = rpsExpectStart
@ -132,7 +132,7 @@ func ParseRange(input string) (*Range, error) {
startOfStart = index
state = rpsInStart
}
index += 1
index++
case rpsInStart:
switch curRune {
@ -146,13 +146,13 @@ func ParseRange(input string) (*Range, error) {
default:
strBuilder.WriteRune(curRune)
}
index += 1
index++
case rpsExpectColon:
switch curRune {
case ':':
state = rpsExpectEnd
index += 1
index++
default:
return nil, parseError(input, index, "expected ':'")
}
@ -163,10 +163,15 @@ func ParseRange(input string) (*Range, error) {
case rpsInEnd:
strBuilder.WriteRune(curRune)
index += 1
index++
}
}
if state == rpsInStart {
// The range was a single value, so that's the upper bound.
parsed.start = "0"
state = rpsInEnd
}
if state != rpsInEnd {
return nil, parseError(input, index, "unexpected end of input")
}

4
pkg/perfdata/range_test.go
View file

@ -81,12 +81,14 @@ func TestRangeParserOk(t *testing.T) {
{in: ":123", out: Range{start: "0", end: "123"}},
{in: "0:123", out: Range{start: "0", end: "123"}},
{in: "~:123", out: Range{start: "", end: "123"}},
{in: "1", out: Range{start: "0", end: "1"}},
{in: "@:0", out: Range{start: "0", end: "0", inside: true}},
{in: "@0:0", out: Range{start: "0", end: "0", inside: true}},
{in: "@~:0", out: Range{start: "", end: "0", inside: true}},
{in: "@:123", out: Range{start: "0", end: "123", inside: true}},
{in: "@0:123", out: Range{start: "0", end: "123", inside: true}},
{in: "@~:123", out: Range{start: "", end: "123", inside: true}},
{in: "@1", out: Range{start: "0", end: "1", inside: true}},
}
for _, test := range tests {
@ -106,12 +108,10 @@ func TestRangeParserError(t *testing.T) {
{in: ":", errPos: 1},
{in: "x:1", errPos: 0},
{in: ":~", errPos: 1},
{in: "1", errPos: 1},
{in: "@", errPos: 1},
{in: "@:", errPos: 2},
{in: "@x:1", errPos: 1},
{in: "@:~", errPos: 2},
{in: "@1", errPos: 2},
}
for _, test := range tests {