Move renderer tests to captured templates

internal/usecase/runner_test.go

@@ -13,6 +13,7 @@ import (
 	"strings"
 	"sync"
 	"testing"
+	"text/template"
 	"time"
 
 	"go.maximumdirect.net/promptkit/internal/capacity"
@@ -41,6 +42,36 @@ type staticPromptRepo struct {
 	def *domain.PromptDefinition
 }
 
+type capturedTemplateFixture struct {
+	id        string
+	templates prompt.CompiledTemplates
+}
+
+func (fixture capturedTemplateFixture) GetCompiledTemplates(id string) (prompt.CompiledTemplates, bool) {
+	return fixture.templates, id == fixture.id
+}
+
+func testCompiledRenderer(t *testing.T, definition *domain.PromptDefinition) prompt.Renderer {
+	t.Helper()
+	var templates prompt.CompiledTemplates
+	if definition.SessionID != "" {
+		var err error
+		templates.Session, err = prompt.CompileTemplate("session", definition.SessionID)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+	templates.Messages = make([]*template.Template, 0, len(definition.Templates))
+	for _, message := range definition.Templates {
+		compiled, err := prompt.CompileTemplate("message", message.Content)
+		if err != nil {
+			t.Fatal(err)
+		}
+		templates.Messages = append(templates.Messages, compiled)
+	}
+	return prompt.NewCompiledRenderer(capturedTemplateFixture{id: definition.ID, templates: templates})
+}
+
 func (r staticPromptRepo) GetPromptSnapshot(
 	context.Context,
 	string,
@@ -449,7 +480,7 @@ func TestRunnerDirectSessionResolution(t *testing.T) {
 			&fakeExecutionProfileRepo{profiles: map[string]*domain.ExecutionProfile{"exec": defaultExecutionProfile()}},
 
 			defaultArtifactReader(),
-			prompt.NewGoRenderer(),
+			testCompiledRenderer(t, def),
 			&fakeLLM{forbid: true},
 			nil, nil)
 
@@ -496,7 +527,7 @@ func TestRunnerDirectSessionResolution(t *testing.T) {
 			&fakeExecutionProfileRepo{profiles: map[string]*domain.ExecutionProfile{"exec": defaultExecutionProfile()}},
 
 			defaultArtifactReader(),
-			prompt.NewGoRenderer(),
+			testCompiledRenderer(t, def),
 			&fakeLLM{forbid: true},
 			nil, nil)
 
@@ -526,7 +557,7 @@ func TestRunnerDirectSessionResolution(t *testing.T) {
 			&fakeExecutionProfileRepo{profiles: map[string]*domain.ExecutionProfile{"exec": defaultExecutionProfile()}},
 
 			defaultArtifactReader(),
-			prompt.NewGoRenderer(),
+			testCompiledRenderer(t, def),
 			&fakeLLM{forbid: true},
 			nil, nil)
 
@@ -886,7 +917,7 @@ func TestRunnerPrepareRequiredInputMissingFails(t *testing.T) {
 		&fakeExecutionProfileRepo{profiles: map[string]*domain.ExecutionProfile{"exec": defaultExecutionProfile()}},
 
 		defaultArtifactReader(),
-		prompt.NewGoRenderer(),
+		testCompiledRenderer(t, def),
 		&fakeLLM{forbid: true},
 		nil, nil)
 
@@ -913,7 +944,7 @@ func TestRunnerPrepareUnknownTemplateInputReferenceFails(t *testing.T) {
 		&fakeExecutionProfileRepo{profiles: map[string]*domain.ExecutionProfile{"exec": defaultExecutionProfile()}},
 
 		defaultArtifactReader(),
-		prompt.NewGoRenderer(),
+		testCompiledRenderer(t, def),
 		&fakeLLM{forbid: true},
 		nil, nil)