ui: basic map scroller

client/world/fake_drawer_helpers_test.go

@@ -0,0 +1,95 @@
+package world
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+// requireDrawerCommandNames asserts the exact command sequence recorded
+// by fakePrimitiveDrawer.
+func requireDrawerCommandNames(t *testing.T, d *fakePrimitiveDrawer, want ...string) {
+	t.Helper()
+
+	require.Equal(t, want, d.CommandNames())
+}
+
+// requireDrawerCommandCount asserts the number of recorded commands.
+func requireDrawerCommandCount(t *testing.T, d *fakePrimitiveDrawer, want int) {
+	t.Helper()
+
+	require.Len(t, d.Commands(), want)
+}
+
+// requireDrawerCommandAt returns the command at the specified index.
+func requireDrawerCommandAt(t *testing.T, d *fakePrimitiveDrawer, index int) fakeDrawerCommand {
+	t.Helper()
+
+	cmds := d.Commands()
+	require.GreaterOrEqual(t, index, 0)
+	require.Less(t, index, len(cmds))
+
+	return cmds[index]
+}
+
+// requireDrawerSingleCommand returns the only command with the given name.
+func requireDrawerSingleCommand(t *testing.T, d *fakePrimitiveDrawer, name string) fakeDrawerCommand {
+	t.Helper()
+
+	cmds := d.CommandsByName(name)
+	require.Len(t, cmds, 1)
+
+	return cmds[0]
+}
+
+// requireCommandName asserts the command name.
+func requireCommandName(t *testing.T, cmd fakeDrawerCommand, want string) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.Name)
+}
+
+// requireCommandArgs asserts the exact float arguments.
+func requireCommandArgs(t *testing.T, cmd fakeDrawerCommand, want ...float64) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.Args)
+}
+
+// requireCommandArgsInDelta asserts the float arguments with tolerance.
+func requireCommandArgsInDelta(t *testing.T, cmd fakeDrawerCommand, delta float64, want ...float64) {
+	t.Helper()
+
+	require.Len(t, cmd.Args, len(want))
+	for i := range want {
+		require.InDelta(t, want[i], cmd.Args[i], delta, "arg index %d", i)
+	}
+}
+
+// requireCommandClipRects asserts the clip stack snapshot attached to the command.
+func requireCommandClipRects(t *testing.T, cmd fakeDrawerCommand, want ...fakeClipRect) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.Clips)
+}
+
+// requireCommandLineWidth asserts the line width snapshot attached to the command.
+func requireCommandLineWidth(t *testing.T, cmd fakeDrawerCommand, want float64) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.LineWidth)
+}
+
+// requireCommandDashes asserts the dash snapshot attached to the command.
+func requireCommandDashes(t *testing.T, cmd fakeDrawerCommand, want ...float64) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.Dashes)
+}
+
+// requireCommandDashOffset asserts the dash offset snapshot attached to the command.
+func requireCommandDashOffset(t *testing.T, cmd fakeDrawerCommand, want float64) {
+	t.Helper()
+
+	require.Equal(t, want, cmd.DashOffset)
+}