Arrange matching dim1 data on the same row

-The data is not guaranteed to be processed row
 by row. Therefore, make sure to check the entire
 matrix for the correct row (not just previous row)
 when appending new row data.

Issue: DEB-155

src/initialize-transformed.js

@@ -113,7 +113,6 @@ function generateDataSet (component, dimensionsInformation, measurementsInformat
   const measurements = generateMeasurements(measurementsInformation);
   let matrix = [];
 
-  let previousDim1Entry;
   const hasDesignDimension = cubes.design;
   const hasSecondDimension = hasDesignDimension ? dimensionsInformation.length > 2 : dimensionsInformation.length > 1;
   cubes.data.forEach(row => {
@@ -127,7 +126,7 @@ function generateDataSet (component, dimensionsInformation, measurementsInformat
       dimension2.push(dimension2Entry);
       firstDataCell = 2;
     }
-    const matrixRow = row
+    let matrixRow = row
       .slice(firstDataCell, row.length)
       .map((cell, cellIndex) => {
         const measurementInformation = measurements[cellIndex];
@@ -143,18 +142,17 @@ function generateDataSet (component, dimensionsInformation, measurementsInformat
         return generatedCell;
       });
 
+    let appendToRowIndex = matrix.length;
     if (hasSecondDimension) {
-      const currentDim1Entry = row[0].qText;
-      const isSameDimension1AsPrevious = currentDim1Entry === previousDim1Entry;
-      if (isSameDimension1AsPrevious) {
-        matrix[matrix.length - 1] = matrix[matrix.length - 1].concat(matrixRow);
-      } else {
-        matrix[matrix.length] = matrixRow;
+      // See if there already is a row for the current dim1
+      for (let i = 0; i < matrix.length; i++) {
+        if (matrix[i][0].parents.dimension1.header === matrixRow[0].parents.dimension1.header) {
+          appendToRowIndex = i;
+          matrixRow = matrix[i].concat(matrixRow);
+        }
       }
-      previousDim1Entry = currentDim1Entry;
-    } else {
-      matrix[matrix.length] = matrixRow;
     }
+    matrix[appendToRowIndex] = matrixRow;
   });
 
   // filter header dimensions to only have distinct values