Make message and succesful required

extensions/ql-vscode/src/query-history/store/query-history-local-query-dto-mapper.ts

@@ -57,8 +57,8 @@ function mapCompletedQueryInfoToDomainModel(
   return new CompletedQueryInfo(
     mapQueryEvaluationInfoToDomainModel(completedQuery.query),
     completedQuery.logFileLocation,
-    completedQuery.successful ?? completedQuery.sucessful,
-    completedQuery.message,
+    completedQuery.successful ?? false,
+    completedQuery.message ?? "",
     sortState,
     completedQuery.resultCount,
     sortedResults,

extensions/ql-vscode/src/query-results.ts

@@ -53,8 +53,8 @@ export class CompletedQueryInfo implements QueryWithResults {
   constructor(
     public readonly query: QueryEvaluationInfo,
     public readonly logFileLocation: string | undefined,
-    public readonly successful: boolean | undefined,
-    public readonly message: string | undefined,
+    public readonly successful: boolean,
+    public readonly message: string,
     /**
      * How we're currently sorting alerts. This is not mere interface
      * state due to truncation; on re-sort, we want to read in the file
@@ -76,11 +76,7 @@ export class CompletedQueryInfo implements QueryWithResults {
   }
 
   get statusString(): string {
-    if (this.message) {
-      return this.message;
-    } else {
-      throw new Error("No status available");
-    }
+    return this.message;
   }
 
   getResultsPath(selectedTable: string, useSorted = true): string {

extensions/ql-vscode/src/run-queries-shared.ts

@@ -367,8 +367,8 @@ export class QueryEvaluationInfo extends QueryOutputDir {
 export interface QueryWithResults {
   readonly query: QueryEvaluationInfo;
   readonly logFileLocation?: string;
-  readonly successful?: boolean;
-  readonly message?: string;
+  readonly successful: boolean;
+  readonly message: string;
 }
 
 /**

extensions/ql-vscode/test/factories/query-history/local-query-history-item.ts

@@ -93,5 +93,8 @@ export function createMockQueryWithResults({
       metadata,
     } as unknown as QueryEvaluationInfo,
     successful: didRunSuccessfully,
+    message: didRunSuccessfully
+      ? "finished in 0 seconds"
+      : "compilation failed: unknown error",
   };
 }