Split file

src/report/reporters/histogram/columns.js

@@ -0,0 +1,56 @@
+import { graphGradientColor } from '../../utils/colors.js'
+
+import { HISTOGRAM_CHARS } from './characters.js'
+
+// Computes the terminal height of each column for reporting.
+export const getHistogramColumns = function ({
+  frequencies,
+  medianIndex,
+  contentWidth,
+  height,
+}) {
+  const medianMaxWidth = Math.max(medianIndex, contentWidth - 1 - medianIndex)
+  const maxHeight = getMaxHeight(frequencies, height)
+  return frequencies.map((frequency, columnIndex) =>
+    getHistogramColumn({
+      frequency,
+      columnIndex,
+      maxHeight,
+      medianIndex,
+      medianMaxWidth,
+    }),
+  )
+}
+
+// Retrieve max terminal height of columns
+const getMaxHeight = function (frequencies, height) {
+  return height / Math.max(...frequencies)
+}
+
+// Retrieve the height of each column.
+// `heightLevel` is the integer part (full character) and `charIndex` is the
+// fractional part (final character on top of column).
+const getHistogramColumn = function ({
+  frequency,
+  columnIndex,
+  maxHeight,
+  medianIndex,
+  medianMaxWidth,
+}) {
+  const columnHeight = maxHeight * frequency
+  const heightLevel = Math.floor(columnHeight)
+  const charIndex = Math.ceil(
+    (columnHeight - heightLevel) * (HISTOGRAM_CHARS.length - 1),
+  )
+  const color = getColumnColor(columnIndex, medianIndex, medianMaxWidth)
+  return { heightLevel, charIndex, color }
+}
+
+// Computes the column gradient color.
+const getColumnColor = function (columnIndex, medianIndex, medianMaxWidth) {
+  const colorPercentage =
+    medianMaxWidth === 0
+      ? 0
+      : Math.abs(medianIndex - columnIndex) / medianMaxWidth
+  return graphGradientColor(colorPercentage)
+}

src/report/reporters/histogram/rows.js

@@ -1,10 +1,9 @@
-import { graphGradientColor } from '../../utils/colors.js'
-
 import {
   HISTOGRAM_CHARS,
   EMPTY_HISTOGRAM_CHAR,
   FULL_HISTOGRAM_CHAR,
 } from './characters.js'
+import { getHistogramColumns } from './columns.js'
 import { getFrequencies } from './frequencies.js'
 
 // Serialize the main part of the histogram, i.e. rows and columns
@@ -38,59 +37,6 @@ export const getHistogramRows = function ({
   ).join('')
 }
 
-// Computes the terminal height of each column for reporting.
-const getHistogramColumns = function ({
-  frequencies,
-  medianIndex,
-  contentWidth,
-  height,
-}) {
-  const medianMaxWidth = Math.max(medianIndex, contentWidth - 1 - medianIndex)
-  const maxHeight = getMaxHeight(frequencies, height)
-  return frequencies.map((frequency, columnIndex) =>
-    getHistogramColumn({
-      frequency,
-      columnIndex,
-      maxHeight,
-      medianIndex,
-      medianMaxWidth,
-    }),
-  )
-}
-
-// Retrieve max terminal height of columns
-const getMaxHeight = function (frequencies, height) {
-  return height / Math.max(...frequencies)
-}
-
-// Retrieve the height of each column.
-// `heightLevel` is the integer part (full character) and `charIndex` is the
-// fractional part (final character on top of column).
-const getHistogramColumn = function ({
-  frequency,
-  columnIndex,
-  maxHeight,
-  medianIndex,
-  medianMaxWidth,
-}) {
-  const columnHeight = maxHeight * frequency
-  const heightLevel = Math.floor(columnHeight)
-  const charIndex = Math.ceil(
-    (columnHeight - heightLevel) * (HISTOGRAM_CHARS.length - 1),
-  )
-  const color = getColumnColor(columnIndex, medianIndex, medianMaxWidth)
-  return { heightLevel, charIndex, color }
-}
-
-// Computes the column gradient color.
-const getColumnColor = function (columnIndex, medianIndex, medianMaxWidth) {
-  const colorPercentage =
-    medianMaxWidth === 0
-      ? 0
-      : Math.abs(medianIndex - columnIndex) / medianMaxWidth
-  return graphGradientColor(colorPercentage)
-}
-
 // Serialize a single row, i.e. terminal line
 const getHistogramRow = function ({
   index,