WIP components (as built)

compare_symbol_test.go

@@ -0,0 +1,71 @@
+package mujica
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func TestCompareSymbolPercentAndRemove(t *testing.T) {
+	candles := sampleCandles(100)
+	view := MarketView{Count: 50}
+	eth := make([]float64, 100)
+	for i := range eth {
+		eth[i] = 20 + float64(i)*0.1
+	}
+	cmp := []CompareSymbol{{Name: "ETH", Closes: eth}}
+	removed := 0
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		if CompareLegend(c, &cmp).Changed() {
+			removed++
+		}
+		CandlestickChart(c, candles, &view, CandlestickOptions{Frame: ChartFrame{Label: "BTC"}, Compare: &cmp})
+	}, 800, 420)
+	tt.Key(0, ui.KeyTab) // remove ETH
+	tt.Key(0, ui.KeyTab) // the chart
+	tt.Key(0, ui.KeyEnd)
+	// Normalized from the first shown candle, index 50: (29.9/25 - 1) = 19.6%.
+	want := "ETH 19.60"
+	found := false
+	for _, s := range tt.Texts() {
+		found = found || strings.Contains(s, want)
+	}
+	if !found {
+		t.Fatalf("readout lacks %q: %q", want, tt.Texts())
+	}
+	if err := tt.Click("Remove ETH"); err != nil {
+		t.Fatal(err)
+	}
+	if len(cmp) != 0 || removed != 1 {
+		t.Fatalf("remove: %v %d", cmp, removed)
+	}
+	defer func() {
+		if recover() == nil {
+			t.Fatal("short closes accepted")
+		}
+	}()
+	bad := []CompareSymbol{{Name: "X", Closes: []float64{1}}}
+	ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		CandlestickChart(c, candles, &view, CandlestickOptions{Frame: ChartFrame{Label: "x"}, Compare: &bad})
+	}, 300, 200)
+}
+
+func TestCompareSymbolSnapshot(t *testing.T) {
+	candles := sampleCandles(100)
+	view := MarketView{Count: 80}
+	eth, sol := make([]float64, 100), make([]float64, 100)
+	for i := range eth {
+		eth[i] = 20 + float64(i)*0.08 + float64(i%7)*0.2
+		sol[i] = 5 - float64(i)*0.01 + float64(i%5)*0.05
+	}
+	cmp := []CompareSymbol{{Name: "ETH", Closes: eth}, {Name: "SOL", Closes: sol}}
+	snapshot(t, "compare_symbol", 640, 360, func(c *ui.Context) {
+		ui.Column(c).Padding(12).Gap(8).Children(func() {
+			CompareLegend(c, &cmp)
+			CandlestickChart(c, candles, &view, CandlestickOptions{Frame: ChartFrame{Label: "BTC", Height: 240}, Type: ChartLine, Compare: &cmp})
+		})
+	})
+}