fix(tests): work around goldie AssertWithTemplate not using EqualFn

goldie's AssertWithTemplate doesn't respect the EqualFn option, so we
manually handle template substitution and use NormalizedEqual directly
for cross-platform comparison.

executor_test.go

@@ -163,8 +163,9 @@ func (tt *ExecutorTest) run(t *testing.T) {
 		e := task.NewExecutor(opts...)
 
 		// Create a golden fixture file for the output
+		tt.fixtureDir = filepath.Join(e.Dir, "testdata")
 		g := goldie.New(t,
-			goldie.WithFixtureDir(filepath.Join(e.Dir, "testdata")),
+			goldie.WithFixtureDir(tt.fixtureDir),
 			goldie.WithEqualFn(NormalizedEqual),
 		)
 

formatter_test.go

@@ -125,8 +125,9 @@ func (tt *FormatterTest) run(t *testing.T) {
 		e := task.NewExecutor(opts...)
 
 		// Create a golden fixture file for the output
+		tt.fixtureDir = filepath.Join(e.Dir, "testdata")
 		g := goldie.New(t,
-			goldie.WithFixtureDir(filepath.Join(e.Dir, "testdata")),
+			goldie.WithFixtureDir(tt.fixtureDir),
 			goldie.WithEqualFn(NormalizedEqual),
 		)
 

task_test.go

@@ -19,6 +19,7 @@ import (
 	"strings"
 	"sync"
 	"testing"
+	"text/template"
 	"time"
 
 	"github.com/Masterminds/semver/v3"
@@ -48,6 +49,7 @@ type (
 		postProcessFns           []PostProcessFn
 		fixtureTemplateData      map[string]any
 		fixtureTemplatingEnabled bool
+		fixtureDir               string
 	}
 )
 
@@ -94,7 +96,20 @@ func (tt *TaskTest) writeFixture(
 		if tt.fixtureTemplateData != nil {
 			maps.Copy(fixtureTemplateData, tt.fixtureTemplateData)
 		}
-		g.AssertWithTemplate(t, goldenFileName, fixtureTemplateData, b)
+		// Note: We manually handle template substitution and comparison
+		// because AssertWithTemplate doesn't respect the EqualFn option.
+		goldenFile := filepath.Join(tt.fixtureDir, goldenFileName+".golden")
+		goldenContent, err := os.ReadFile(goldenFile)
+		require.NoError(t, err)
+		tmpl, err := template.New("golden").Parse(string(goldenContent))
+		require.NoError(t, err)
+		var expected bytes.Buffer
+		require.NoError(t, tmpl.Execute(&expected, fixtureTemplateData))
+		if !NormalizedEqual(b, expected.Bytes()) {
+			t.Errorf("Result did not match the golden fixture.\nExpected:\n%s\nActual:\n%s",
+				string(normalizeLineEndings(expected.Bytes())),
+				string(normalizeLineEndings(b)))
+		}
 	} else {
 		g.Assert(t, goldenFileName, b)
 	}