Merge pull request #2267

* [#CODAP-899] Bug fix: Box plot median is hidden when equal to Q1

* * Code review tweak

Author: bfinzer

v3/src/components/graph/adornments/univariate-measures/box-plot/box-plot-adornment-component.tsx

@@ -411,6 +411,25 @@ export const BoxPlotAdornmentComponent = observer(function BoxPlotAdornmentCompo
     const translationVars = [ minWhiskerValue, lowerQuartile, median, upperQuartile, maxWhiskerValue, iqr ]
       .map(v => helper.formatValueForScale(v))
     let textContent = `${t(model.labelTitle, { vars: translationVars })}`
+    // Special case in which median equals lower and/or upper quartile
+    // We combine the labels for those two or three measures so the user sees all info
+    // Todo: We're not handling the situation in which the measures are very close to each other.
+    // Consider basing equality on the threshold of one pixel difference
+    // Todo: We're also not handling equality of min/max whisker with quartiles or median. (Not a common case.)
+    if (lowerQuartile === median || median === upperQuartile) {
+      const contentArray = textContent.split("\n")
+      if (lowerQuartile === median && median === upperQuartile) {
+        // It turns out the third array element is the one that displays in this situation
+        contentArray[3] = `${contentArray[1]}; ${contentArray[2]}; ${contentArray[3]}`
+      }
+      else if (lowerQuartile === median) {
+        contentArray[1] = `${contentArray[1]}; ${contentArray[2]}`
+      }
+      else if (median === upperQuartile) {
+        contentArray[3] = `${contentArray[2]}; ${contentArray[3]}`
+      }
+      textContent = contentArray.join("\n")
+    }
 
     if ((measureRange?.min || measureRange?.min === 0) && (measureRange?.max || measureRange?.max === 0)) {
       const rangeSpecs = {