Add tests for new query syntax

.github/spellcheck/wordlist.txt

@@ -58,6 +58,7 @@ unmarshal
 uptime
 URI
 URIs
+UTF
 validator
 VCS
 yaml

docs/changelog.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## v0.68.0
+
+### Changed
+
+- pint now uses [Prometheus 3.0](https://prometheus.io/blog/2024/11/14/prometheus-3-0/) libraries
+  for parsing PromQL, which adds support for new query syntax that allows for dots and UTF-8 chars
+  in metric/label names, example:
+
+  ```js
+  {"status.üp"} == 0
+  ```
+
 ## v0.67.3
 
 ### Fixed

internal/parser/parser_test.go

@@ -2798,6 +2798,88 @@ groups:
 `),
 			strict: true,
 		},
+		{
+			content: []byte(`
+groups:
+- name: foo
+  rules:
+  - record: foo
+    expr: |
+      {"up"}
+`),
+			output: []parser.Rule{
+				{
+					Lines: parser.LineRange{First: 5, Last: 7},
+					RecordingRule: &parser.RecordingRule{
+						Record: parser.YamlNode{
+							Lines: parser.LineRange{First: 5, Last: 5},
+							Value: "foo",
+						},
+						Expr: parser.PromQLExpr{
+							Value: &parser.YamlNode{
+								Lines: parser.LineRange{First: 6, Last: 7},
+								Value: "{\"up\"}\n",
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			content: []byte(`
+groups:
+- name: foo
+  rules:
+  - record: foo
+    expr: |
+      {'up'}
+`),
+			output: []parser.Rule{
+				{
+					Lines: parser.LineRange{First: 5, Last: 7},
+					RecordingRule: &parser.RecordingRule{
+						Record: parser.YamlNode{
+							Lines: parser.LineRange{First: 5, Last: 5},
+							Value: "foo",
+						},
+						Expr: parser.PromQLExpr{
+							Value: &parser.YamlNode{
+								Lines: parser.LineRange{First: 6, Last: 7},
+								Value: "{'up'}\n",
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			content: []byte(`
+groups:
+- name: foo
+  rules:
+  - record: foo
+    expr: |
+      {'up' == 1}
+`),
+			output: []parser.Rule{
+				{
+					Lines: parser.LineRange{First: 5, Last: 7},
+					RecordingRule: &parser.RecordingRule{
+						Record: parser.YamlNode{
+							Lines: parser.LineRange{First: 5, Last: 5},
+							Value: "foo",
+						},
+						Expr: parser.PromQLExpr{
+							Value: &parser.YamlNode{
+								Lines: parser.LineRange{First: 6, Last: 7},
+								Value: "{'up' == 1}\n",
+							},
+							SyntaxError: errors.New("unexpected character inside braces: '1'"),
+						},
+					},
+				},
+			},
+		},
 	}
 
 	alwaysEqual := cmp.Comparer(func(_, _ interface{}) bool { return true })