diff --git a/src/components/DatasetEditor/DatasetEditor.tsx b/src/components/DatasetEditor/DatasetEditor.tsx
index f7d95f5..0602c4a 100644
--- a/src/components/DatasetEditor/DatasetEditor.tsx
+++ b/src/components/DatasetEditor/DatasetEditor.tsx
@@ -163,7 +163,7 @@ export const DatasetEditor: React.FC<Props> = ({ value, onChange, data }) => {
                         <div className={styles.column}>
                           <IconButton
                             name="trash-alt"
-                            aria-label="Remove"
+                            aria-label={TEST_IDS.datasetEditor.buttonRemove}
                             onClick={() =>
                               onChangeItems(
                                 items.filter(
@@ -171,7 +171,6 @@ export const DatasetEditor: React.FC<Props> = ({ value, onChange, data }) => {
                                 )
                               )
                             }
-                            data-testid={TEST_IDS.datasetEditor.buttonRemove}
                           />
                           <Icon
                             title="Drag and drop to reorder"
diff --git a/src/components/EchartsEditor/EchartsEditor.test.tsx b/src/components/EchartsEditor/EchartsEditor.test.tsx
index 5399827..92fda39 100644
--- a/src/components/EchartsEditor/EchartsEditor.test.tsx
+++ b/src/components/EchartsEditor/EchartsEditor.test.tsx
@@ -57,7 +57,7 @@ describe('Echarts Editor', () => {
   };
 
   const getComponent = ({ ...restProps }: any, context = getContext()) => {
-    return <EchartsEditor item={{}} {...restProps} context={context} />;
+    return <EchartsEditor item={{}} value={''} {...restProps} context={context} />;
   };
 
   beforeEach(() => {
diff --git a/src/components/EchartsEditor/EchartsEditor.tsx b/src/components/EchartsEditor/EchartsEditor.tsx
index 08f7040..74de773 100644
--- a/src/components/EchartsEditor/EchartsEditor.tsx
+++ b/src/components/EchartsEditor/EchartsEditor.tsx
@@ -111,7 +111,7 @@ export const EchartsEditor: React.FC<Props> = ({ value, onChange, context, item
       <CodeEditor
         language={CodeLanguage.JAVASCRIPT}
         showLineNumbers={true}
-        showMiniMap={!!value && value.length > 100}
+        showMiniMap={value.length > 100}
         value={value}
         height={context.options?.editor.height}
         onBlur={onChange}
diff --git a/src/constants/tests.ts b/src/constants/tests.ts
index 44367ca..fdb271c 100644
--- a/src/constants/tests.ts
+++ b/src/constants/tests.ts
@@ -26,7 +26,7 @@ export const TEST_IDS = {
   },
   datasetEditor: {
     buttonAddNew: 'data-testid dataset-editor button-add-new',
-    buttonRemove: 'data-testid dataset-editor button-remove',
+    buttonRemove: 'dataset-editor button-remove',
     item: (name: string) => `data-testid dataset-editor item-${name}`,
     newItem: 'data-testid dataset-editor new-item',
     newItemName: 'dataset-editor new-item-name',