Maintainer feedback code changes

* Use gl-sprintf
* Make test assertion more explicit

ee/app/assets/javascripts/security_configuration/corpus_management/components/corpus_upload.vue

 <script>
-import { GlButton } from '@gitlab/ui';
+import { GlButton, GlSprintf } from '@gitlab/ui';
 import { numberToHumanSize } from '~/lib/utils/number_utils';
 import { s__ } from '~/locale';
 
 export default {
   components: {
     GlButton,
+    GlSprintf,
   },
   props: {
     totalSize: {
@@ -14,7 +15,7 @@ export default {
     },
   },
   i18n: {
-    totalSize: s__('CorpusManagement|Total Size:'),
+    totalSize: s__('CorpusManagement|Total Size: %{totalSize}'),
     newCorpus: s__('CorpusManagement|New corpus'),
   },
   computed: {
@@ -35,7 +36,12 @@ export default {
   >
     <div class="gl-ml-5">
       {{ this.$options.i18n.totalSize }}
-      <span class="gl-font-weight-bold">{{ formattedFileSize }}</span>
+
+      <gl-sprintf :message="$options.i18n.totalSize">
+        <template #totalSize>
+          <span class="gl-font-weight-bold">{{ formattedFileSize }}</span>
+        </template>
+      </gl-sprintf>
     </div>
 
     <gl-button class="gl-mr-5" category="primary" variant="confirm" @click="newCorpus">

ee/spec/frontend/security_configuration/corpus_management/components/__snapshots__/corpus_upload_spec.js.snap

@@ -8,13 +8,12 @@ exports[`Corpus Upload component renders header 1`] = `
     class="gl-ml-5"
   >
     
-    Total Size:
+    Total Size: %{totalSize}
+
     
-    <span
-      class="gl-font-weight-bold"
-    >
-      381.47 MiB
-    </span>
+    <gl-sprintf-stub
+      message="Total Size: %{totalSize}"
+    />
   </div>
    
   <gl-button-stub

ee/spec/frontend/security_configuration/corpus_management/components/corpus_upload_spec.js

@@ -30,7 +30,7 @@ describe('Corpus Upload', () => {
       createComponent({ stubs: { GlButton } });
       await wrapper.findComponent(GlButton).trigger('click');
 
-      expect(wrapper.emitted().newcorpus).toBeTruthy();
+      expect(wrapper.emitted().newcorpus).toEqual([[]]);
     });
   });
 });