From a43bfebdfc45de381df4f87e98bf63fcb8f253e7 Mon Sep 17 00:00:00 2001
From: Lukasz Mierzwa <lukasz@cloudflare.com>
Date: Tue, 19 Nov 2024 11:18:23 +0000
Subject: [PATCH] Add tests for new query syntax

---
 docs/changelog.md              | 12 +++++
 internal/parser/parser_test.go | 82 ++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+)

diff --git a/docs/changelog.md b/docs/changelog.md
index cc835c55..edfad774 100644
--- a/docs/changelog.md
+++ b/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
diff --git a/internal/parser/parser_test.go b/internal/parser/parser_test.go
index 194057af..229647ba 100644
--- a/internal/parser/parser_test.go
+++ b/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 })