From 37ba30463cf2d585fd017b077b9e2e391d6dad9a Mon Sep 17 00:00:00 2001
From: Caleb Foust <cfoust@sqweebloid.com>
Date: Tue, 14 Nov 2023 17:57:57 -0500
Subject: [PATCH] feat: scroll and clear tests

---
 pkg/sessions/search/search_test.go | 171 +++++++++++++++++++++++++++++
 pkg/sessions/simulator.go          |   6 -
 2 files changed, 171 insertions(+), 6 deletions(-)

diff --git a/pkg/sessions/search/search_test.go b/pkg/sessions/search/search_test.go
index f8d07556..22aa16b6 100644
--- a/pkg/sessions/search/search_test.go
+++ b/pkg/sessions/search/search_test.go
@@ -3,10 +3,12 @@ package search
 import (
 	"testing"
 
+	"github.com/cfoust/cy/pkg/emu"
 	"github.com/cfoust/cy/pkg/geom"
 	"github.com/cfoust/cy/pkg/sessions"
 
 	"github.com/stretchr/testify/require"
+	"github.com/xo/terminfo"
 )
 
 func TestGetPartial(t *testing.T) {
@@ -23,6 +25,11 @@ func TestGetPartial(t *testing.T) {
 	require.Equal(t, "([ads]|[1-3])", re.String())
 }
 
+var TEST_SIZE = geom.Size{
+	R: 4,
+	C: 10,
+}
+
 func TestBasic(t *testing.T) {
 	sim := sessions.NewSimulator().
 		Add(
@@ -64,3 +71,167 @@ func TestBasic(t *testing.T) {
 		},
 	}, results[0])
 }
+
+func TestClearScreen(t *testing.T) {
+	sim := sessions.NewSimulator().
+		Add(
+			TEST_SIZE,
+			emu.LineFeedMode,
+			"foo\n",
+			"bar\n",
+			"baz",
+		).
+		Term(terminfo.ClearScreen).
+		Add("test")
+
+	results, err := Search(sim.Events(), "foo", nil)
+	require.NoError(t, err)
+	require.Equal(t, 1, len(results))
+	require.Equal(t, SearchResult{
+		Begin: Address{
+			Index:  2,
+			Offset: 2,
+		},
+		End: Address{
+			Index:  5,
+			Offset: 6,
+		},
+		Appearances: []Appearance{
+			{
+				Begin: Address{
+					Index:  2,
+					Offset: 2,
+				},
+				End: Address{
+					Index:  5,
+					Offset: 6,
+				},
+				Selection: Selection{
+					From: geom.Vec2{
+						C: 0,
+					},
+					To: geom.Vec2{
+						C: 2,
+					},
+				},
+			},
+		},
+	}, results[0])
+}
+
+func TestClearLine(t *testing.T) {
+	sim := sessions.NewSimulator().
+		Add(
+			TEST_SIZE,
+			emu.LineFeedMode,
+			"foo\n",
+			"bar\n",
+			"baz",
+		).
+		Term(terminfo.CursorAddress, 0, 0).
+		Term(terminfo.DeleteLine)
+
+	results, err := Search(sim.Events(), "foo", nil)
+	require.NoError(t, err)
+	require.Equal(t, 1, len(results))
+	require.Equal(t, SearchResult{
+		Begin: Address{
+			Index:  2,
+			Offset: 2,
+		},
+		End: Address{
+			Index:  6,
+			Offset: 2,
+		},
+		Appearances: []Appearance{
+			{
+				Begin: Address{
+					Index:  2,
+					Offset: 2,
+				},
+				End: Address{
+					Index:  6,
+					Offset: 2,
+				},
+				Selection: Selection{
+					From: geom.Vec2{
+						C: 0,
+					},
+					To: geom.Vec2{
+						C: 2,
+					},
+				},
+			},
+		},
+	}, results[0])
+}
+
+func TestScroll(t *testing.T) {
+	sim := sessions.NewSimulator().
+		Add(
+			TEST_SIZE,
+			emu.LineFeedMode,
+			"foo\n",
+			"bar\n", // 3
+			"baz\n",
+			"\n",
+			"\n", // 6
+			"test",
+		)
+
+	results, err := Search(sim.Events(), "bar", nil)
+	require.NoError(t, err)
+	require.Equal(t, 1, len(results))
+	require.Equal(t, SearchResult{
+		Begin: Address{
+			Index:  3,
+			Offset: 2,
+		},
+		End: Address{
+			Index:  7,
+			Offset: 3,
+		},
+		Appearances: []Appearance{
+			{
+				Begin: Address{
+					Index:  3,
+					Offset: 2,
+				},
+				End: Address{
+					Index:  5,
+					Offset: 0,
+				},
+				Selection: Selection{
+					From: geom.Vec2{
+						R: 1,
+						C: 0,
+					},
+					To: geom.Vec2{
+						R: 1,
+						C: 2,
+					},
+				},
+			},
+			{
+				Begin: Address{
+					Index:  5,
+					Offset: 0,
+				},
+				End: Address{
+					Index:  7,
+					Offset: 3,
+				},
+				Selection: Selection{
+					From: geom.Vec2{
+						R: 0,
+						C: 0,
+					},
+					To: geom.Vec2{
+						R: 0,
+						C: 2,
+					},
+				},
+			},
+		},
+	}, results[0])
+}
diff --git a/pkg/sessions/simulator.go b/pkg/sessions/simulator.go
index 0317adde..1b19ff15 100644
--- a/pkg/sessions/simulator.go
+++ b/pkg/sessions/simulator.go
@@ -3,7 +3,6 @@ package sessions
 import (
 	"time"
 
-	"github.com/cfoust/cy/pkg/emu"
 	"github.com/cfoust/cy/pkg/geom"
 	P "github.com/cfoust/cy/pkg/io/protocol"
 
@@ -92,11 +91,6 @@ func (s *Simulator) Add(events ...interface{}) *Simulator {
 	return s
 }
 
-// LineFeed causes \n to return to the start of the next line.
-func (s *Simulator) LineFeed() {
-	s.Add(emu.LineFeedMode)
-}
-
 func (s *Simulator) Events() []Event {
 	return s.events
 }