Remove trimmming

src/report/finalize.js

@@ -15,7 +15,11 @@ const hasContent = function ({ content }) {
   return typeof content === 'string' && content.trim() !== ''
 }
 
-// Handle content returned by `reporter.report()`
+// Handle content returned by `reporter.report()`.
+// We purposely do not remove empty lines before/after the `content` since those
+// might be used to avoid vertical jitter when the reporter knows those empty
+// lines will be eventually filled (e.g. when combinations stats become
+// available).
 const handleContent = function ({
   content,
   output,
@@ -26,8 +30,7 @@ const handleContent = function ({
   const contentA = trimEnd(content)
   const contentB = wrapRows(contentA)
   const contentC = handleColors(contentB, colors)
-  const contentD = trimContent(contentC)
-  return { content: contentD, output, format, footerString }
+  return { content: contentC, output, format, footerString }
 }
 
 // Trim the end of each line to avoid wrapping-related visual bugs
@@ -44,11 +47,3 @@ const trimEndLine = function (line) {
 const handleColors = function (content, colors) {
   return colors ? content : stripAnsi(content)
 }
-
-// Ensure that exactly one newline is before and after the content
-const trimContent = function (content) {
-  const contentA = content.replace(NEWLINE_REGEXP, '')
-  return `${contentA}\n`
-}
-
-const NEWLINE_REGEXP = /(^\n*)|(\n*$)/gu

src/report/formats/all/terminal.js

@@ -14,7 +14,7 @@ export const TERMINAL_FORMAT = {
   },
   concat: true,
   footer(footer) {
-    return `\n${prettifyValue(footer)}\n`
+    return `\n\n${prettifyValue(footer)}\n`
   },
   padding: true,
 }

src/report/join.js

@@ -1,3 +1,5 @@
+import stripFinalNewline from 'strip-final-newline'
+
 import { groupBy } from '../utils/group.js'
 
 import { FORMATS } from './formats/list.js'
@@ -26,5 +28,10 @@ const getContentProperty = function ({ content }) {
 const CONTENTS_DELIMITER = '\n'
 
 const padContents = function (joinedContents, format) {
-  return FORMATS[format].padding ? addPadding(joinedContents) : joinedContents
+  if (FORMATS[format].padding === undefined) {
+    return joinedContents
+  }
+
+  const joinedContentsA = `${stripFinalNewline(joinedContents)}\n`
+  return addPadding(joinedContentsA)
 }