Add workflow context test util

actions-languageserver/src/test-utils/workflow-context.ts

@@ -0,0 +1,27 @@
+import {WorkflowContext} from "@github/actions-languageservice/context/workflow-context";
+import {convertWorkflowTemplate, parseWorkflow, TraceWriter} from "@github/actions-workflow-parser";
+
+const nullTrace: TraceWriter = {
+  info: x => {},
+  verbose: x => {},
+  error: x => {}
+};
+
+export function createWorkflowContext(workflow: string, job?: string, stepIndex?: number): WorkflowContext {
+  const parsed = parseWorkflow("test.yaml", [{name: "test.yaml", content: workflow}], nullTrace);
+  if (!parsed.value) {
+    throw new Error("Failed to parse workflow");
+  }
+  const template = convertWorkflowTemplate(parsed.context, parsed.value);
+  const context: WorkflowContext = {uri: "test.yaml", template};
+
+  if (job) {
+    context.job = template.jobs.find(j => j.id.value === job);
+  }
+
+  if (stepIndex) {
+    context.step = context.job?.steps[stepIndex];
+  }
+
+  return context;
+}