Trading: components 161-180

position_table_test.go

@@ -0,0 +1,84 @@
+package mujica
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func positionSample() []PositionRow {
+	return []PositionRow{
+		{ID: "p1", Symbol: "MUJC", Quantity: 100, AvgCost: 400, Price: 412.08},
+		{ID: "p2", Symbol: "AVE", Quantity: 50, AvgCost: 90, Price: 88.2},
+	}
+}
+
+func TestPositionTableValuesAndClose(t *testing.T) {
+	var s DataTableState[string]
+	rows := positionSample()
+	closed := ""
+	tt := tradingTester(GreenUp, 1000, 400, func(c *ui.Context) {
+		ui.Box(c).Width(960).Height(300).Children(func() {
+			if id, ok := PositionTable(c, &s, rows, PositionTableOptions{}).Acted(); ok {
+				closed = id
+			}
+		})
+	})
+	for _, want := range []string{"41,208.00", "+1,208.00", "+3.02%", "−90.00", "−2.00%"} {
+		if !tt.HasText(want) {
+			t.Fatalf("missing %q in %q", want, tt.Texts())
+		}
+	}
+	if err := tt.Click("Close AVE"); err != nil {
+		t.Fatal(err)
+	}
+	if closed != "p2" {
+		t.Fatalf("closed %q", closed)
+	}
+}
+
+// Selection follows the row ID when rows reorder and change.
+func TestPositionTableStableIDs(t *testing.T) {
+	var s DataTableState[string]
+	rows := positionSample()
+	tt := tradingTester(GreenUp, 1000, 400, func(c *ui.Context) {
+		ui.Box(c).Width(960).Height(300).Children(func() { PositionTable(c, &s, rows, PositionTableOptions{}) })
+	})
+	_ = tt.Click("AVE")
+	rows = []PositionRow{{ID: "p3", Symbol: "OBLV", Quantity: 1, AvgCost: 1, Price: 1}, {ID: "p2", Symbol: "AVE", Quantity: 60, AvgCost: 90, Price: 91}, rows[0]}
+	tt.Frame()
+	if id, ok := s.Selected(); !ok || id != "p2" {
+		t.Fatalf("selection %q %v", id, ok)
+	}
+}
+
+func TestPositionTableDisabledAndLargeData(t *testing.T) {
+	var s DataTableState[string]
+	rows := make([]PositionRow, 100_000)
+	for i := range rows {
+		rows[i] = PositionRow{ID: fmt.Sprint(i), Symbol: fmt.Sprintf("S%05d", i), Quantity: 1, AvgCost: 1, Price: 2}
+	}
+	closed := false
+	tt := tradingTester(GreenUp, 1000, 400, func(c *ui.Context) {
+		ui.Box(c).Width(960).Height(300).Children(func() {
+			_, closed = PositionTable(c, &s, rows, PositionTableOptions{Disabled: true}).Acted()
+		})
+	})
+	_ = tt.Click("Close S00000")
+	if closed {
+		t.Fatal("disabled table closed a position")
+	}
+	if n := len(tt.Texts()); n > 400 {
+		t.Fatalf("built %d texts for 100,000 rows", n)
+	}
+}
+
+func TestPositionTableSnapshot(t *testing.T) {
+	snapshot(t, "position_table", 1040, 220, func(c *ui.Context) {
+		ui.Column(c).Padding(16).Height(200).Width(1010).Children(func() {
+			s := ui.Local(c.Root(), "snap", func() DataTableState[string] { return DataTableState[string]{} })
+			PositionTable(c, s, positionSample(), PositionTableOptions{})
+		})
+	})
+}