Add fonts, autotable, autotable examples

go/webui/pdf_summary_test.go

@@ -0,0 +1,66 @@
+package webui
+
+import (
+	"strings"
+	"testing"
+)
+
+// A summary row the user built in the editor must reach the PDF. Before, the caller
+// had to restate it by hand — so a row someone created showed on screen and then
+// quietly vanished from the export, which is the one number they most likely wanted
+// in the file.
+func TestPDFPicksUpTheTablesOwnSummaryRows(t *testing.T) {
+	s := newCalcTable()
+	s.AddSummaryRow(UserSummaryRow{
+		ID: "total", Label: "Total revenue", Fn: CALC_FN_SUM,
+		Operands: []string{"Revenue"}, DataType: CALC_TYPE_NUMBER, Precision: CalcPrecision(0),
+	})
+	s.Render()
+
+	pdf := string(s.ExportPDFBytes(AutoTablePDFHeader{Title: "Report"}))
+	if !strings.Contains(pdf, "Total revenue") {
+		t.Error("the table's own summary row is missing from the PDF")
+	}
+	if !strings.Contains(pdf, "300") {
+		t.Error("the summary row's VALUE is missing from the PDF (100 + 200)")
+	}
+}
+
+// A calculated column the user built must reach it too, with its per-row values.
+func TestPDFPicksUpCalculatedColumns(t *testing.T) {
+	s := newCalcTable()
+	s.AddCalculated(UserCalculatedColumn{
+		ID: "total", DisplayName: "Row total", Fn: CALC_FN_SUM,
+		Operands: []string{"Revenue", "Cost"}, DataType: CALC_TYPE_NUMBER, Precision: CalcPrecision(0),
+	})
+	s.Render()
+
+	pdf := string(s.ExportPDFBytes(AutoTablePDFHeader{Title: "Report"}))
+	if !strings.Contains(pdf, "Row total") {
+		t.Error("the calculated column's header is missing from the PDF")
+	}
+	// Per row, not the column total: 100+40 and 200+50.
+	for _, want := range []string{"140", "250"} {
+		if !strings.Contains(pdf, want) {
+			t.Errorf("calculated value %s missing from the PDF", want)
+		}
+	}
+}
+
+// An explicit Summaries list is an escape hatch and must win.
+func TestPDFExplicitSummariesWin(t *testing.T) {
+	s := newCalcTable()
+	s.AddSummaryRow(UserSummaryRow{ID: "a", Label: "From the table", Fn: CALC_FN_SUM,
+		Operands: []string{"Revenue"}})
+	s.Render()
+
+	pdf := string(s.ExportPDFBytes(AutoTablePDFHeader{
+		Summaries: []AutoTablePDFSummary{{Label: "Caller supplied", Value: "42"}},
+	}))
+	if !strings.Contains(pdf, "Caller supplied") {
+		t.Error("an explicit summary list was ignored")
+	}
+	if strings.Contains(pdf, "From the table") {
+		t.Error("the table's rows were added on top of the caller's")
+	}
+}