fix: Allow empty Column Title (#451)

Author: ayonious

src/internalTable/input-converter.ts

@@ -17,7 +17,7 @@ export const rawColumnToInternalColumn = (
   column: ColumnOptionsRaw
 ): Column => ({
   name: column.name,
-  title: column.title || column.name,
+  title: column.title ?? column.name,
   ...objIfExists('color', column.color as COLOR),
   ...objIfExists('maxLen', column.maxLen),
   ...objIfExists('minLen', column.minLen),

src/utils/table-helpers.ts

@@ -73,7 +73,7 @@ export const createColumFromComputedColumn = (
   column: ComputedColumn
 ): Column => ({
   name: column.name,
-  title: column.title || column.name,
+  title: column.title ?? column.name,
   ...objIfExists('color', column.color as COLOR),
   ...objIfExists('maxLen', column.maxLen),
   ...objIfExists('minLen', column.minLen),

test/internalTable/__snapshots__/headerTitle.test.ts.snap

@@ -1,5 +1,14 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`Testing Title Of Column Empty string title means blank title 1`] = `
+"┌───┬───────────────────────────────────┬───────────────────────────┐
+│   │                                   │ Other two should be blank │
+├───┼───────────────────────────────────┼───────────────────────────┤
+│ 2 │                  This row is blue │          10.212           │
+│ 3 │ I would like some red wine please │          10.212           │
+└───┴───────────────────────────────────┴───────────────────────────┘"
+`;
+
 exports[`Testing Title Of Column title is used in table printing 1`] = `
 "┌──────────────────────┬───────────────────────────────────┬────────────────────────┐
 │ Red Left Align Index │                  Right Align Text │ Big Green Value Center │

test/internalTable/headerTitle.test.ts

@@ -47,6 +47,52 @@ describe('Testing Title Of Column', () => {
 
     console.log(returned);
     expect(returned).toMatchSnapshot();
+  });
+
+  it('Empty string title means blank title', () => {
+    // Create a table
+    const p = new Table({
+      columns: [
+        {
+          name: 'red_left_align_index',
+          alignment: 'left',
+          title: '',
+        },
+        {
+          name: 'right_align_text',
+          alignment: 'right',
+          title: '',
+        },
+        {
+          name: 'green_value_center',
+          alignment: 'center',
+          title: 'Other two should be blank',
+        },
+      ],
+    });
+
+    // add rows with color
+    p.addRow(
+      {
+        red_left_align_index: 2,
+        right_align_text: 'This row is blue',
+        green_value_center: 10.212,
+      },
+      { color: 'blue' }
+    );
+    p.addRow(
+      {
+        red_left_align_index: 3,
+        right_align_text: 'I would like some red wine please',
+        green_value_center: 10.212,
+      },
+      { color: 'red' }
+    );
+
+    // print
+    const returned = renderTable(p.table);
+
     console.log(returned);
+    expect(returned).toMatchSnapshot();
   });
 });