Fix Slice typo and use local toolchain for testing

Fix the panic messages from `spec.Slice` to properly report coming from
`Slice` and not `NewSlice`. Also set `GOTOOLCHAIN=local` when testing to
ensure tests run as the current version of Go to future-proof against
unexpected testing against a different version should `toolchain` be set
in `go.mod`.

Author: theory

CHANGELOG.md

@@ -7,6 +7,15 @@ All notable changes to this project will be documented in this file. It uses the
   [Semantic Versioning]: https://semver.org/spec/v2.0.0.html
     "Semantic Versioning 2.0.0"
 
+## [v0.4.1] — Unreleased
+
+### 🪲 Bug Fixes
+
+*   Fixed the panic messages from `spec.Slice` to properly report coming from
+    `Slice` and not `NewSlice`.
+
+  [v0.4.1]: https://github.com/theory/jsonpath/compare/v0.4.0...v0.4.1
+
 ## [v0.4.0] — 2025-01-15
 
 ### ⚡ Improvements

Makefile

@@ -2,11 +2,11 @@ GO ?= go
 
 .PHONY: test # Run the unit tests
 test:
-	$(GO) test ./... -count=1
+	GOTOOLCHAIN=local $(GO) test ./... -count=1
 
 .PHONY: cover # Run test coverage
 cover: $(shell find . -name \*.go)
-	$(GO) test -v -coverprofile=cover.out -covermode=count ./...
+	GOTOOLCHAIN=local $(GO) test -v -coverprofile=cover.out -covermode=count ./...
 	@$(GO) tool cover -html=cover.out
 
 .PHONY: lint # Lint the project

spec/selector.go

@@ -278,7 +278,7 @@ func Slice(args ...any) SliceSelector {
 		case nil:
 			// Nothing to do
 		default:
-			panic("Third value passed to NewSlice is not an integer")
+			panic("Third value passed to Slice is not an integer")
 		}
 		fallthrough
 	case endArg:
@@ -292,7 +292,7 @@ func Slice(args ...any) SliceSelector {
 				s.end = math.MinInt
 			}
 		default:
-			panic("Second value passed to NewSlice is not an integer")
+			panic("Second value passed to Slice is not an integer")
 		}
 		fallthrough
 	case startArg:
@@ -305,7 +305,7 @@ func Slice(args ...any) SliceSelector {
 				s.start = math.MaxInt
 			}
 		default:
-			panic("First value passed to NewSlice is not an integer")
+			panic("First value passed to Slice is not an integer")
 		}
 	}
 	return s

spec/selector_test.go

@@ -336,15 +336,15 @@ func TestSlicePanic(t *testing.T) {
 	a := assert.New(t)
 
 	a.PanicsWithValue(
-		"First value passed to NewSlice is not an integer",
+		"First value passed to Slice is not an integer",
 		func() { Slice("hi") },
 	)
 	a.PanicsWithValue(
-		"Second value passed to NewSlice is not an integer",
+		"Second value passed to Slice is not an integer",
 		func() { Slice(nil, "hi") },
 	)
 	a.PanicsWithValue(
-		"Third value passed to NewSlice is not an integer",
+		"Third value passed to Slice is not an integer",
 		func() { Slice(nil, 42, "hi") },
 	)
 }