e2etests-cli: Add PNG test

ci/release/docker/Dockerfile

@@ -7,8 +7,7 @@ RUN apt-get update && apt-get install -y ca-certificates curl dumb-init sudo
 
 RUN curl -fsSL https://deb.nodesource.com/setup_19.x | bash -s - && \
   apt-get install -y nodejs
-# See https://github.com/microsoft/playwright/issues/18319
-RUN npx playwright@1.31.1 install-deps chromium
+RUN npx playwright@1.31.1 install --with-deps chromium
 
 RUN adduser --gecos '' --disabled-password debian \
   && echo "debian ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers.d/nopasswd

ci/test.sh

@@ -8,5 +8,6 @@ fi
 
 if [ "${CI:-}" ]; then
   export FORCE_COLOR=1
+  npx playwright@1.31.1 install --with-deps chromium
 fi
 go test --timeout=30m "$@"

d2cli/main.go

@@ -152,6 +152,12 @@ func Run(ctx context.Context, ms *xmain.State) (err error) {
 			outputPath = renameExt(inputPath, ".svg")
 		}
 	}
+	inputPath = filepath.Join(ms.PWD, inputPath)
+	d, err := os.Stat(inputPath)
+	if err == nil && d.IsDir() {
+		inputPath = filepath.Join(inputPath, "index.d2")
+	}
+	outputPath = filepath.Join(ms.PWD, outputPath)
 
 	match := d2themescatalog.Find(*themeFlag)
 	if match == (d2themes.Theme{}) {

e2etests-cli/main_test.go

@@ -2,20 +2,125 @@ package e2etests_cli
 
 import (
 	"context"
+	"os"
+	"path/filepath"
 	"testing"
 	"time"
+
+	"oss.terrastruct.com/d2/d2cli"
+	"oss.terrastruct.com/util-go/assert"
+	"oss.terrastruct.com/util-go/diff"
+	"oss.terrastruct.com/util-go/xmain"
+	"oss.terrastruct.com/util-go/xos"
 )
 
 func TestCLI_E2E(t *testing.T) {
 	t.Parallel()
 
 	tca := []struct {
-		name string
-		run  func(t *testing.T, ctx context.Context)
+		name   string
+		skipCI bool
+		run    func(t *testing.T, ctx context.Context, dir string, env *xos.Env)
 	}{
 		{
-			name: "hello_world",
-			run:  func(t *testing.T, ctx context.Context) {},
+			name:   "hello_world_png",
+			skipCI: true,
+			run: func(t *testing.T, ctx context.Context, dir string, env *xos.Env) {
+				writeFile(t, dir, "hello-world.d2", `x -> y`)
+				err := runTestMain(t, ctx, dir, env, "hello-world.d2", "hello-world.png")
+				assert.Success(t, err)
+				png := readFile(t, dir, "hello-world.png")
+				testdataIgnoreDiff(t, ".png", png)
+			},
+		},
+		{
+			name:   "hello_world_png_pad",
+			skipCI: true,
+			run: func(t *testing.T, ctx context.Context, dir string, env *xos.Env) {
+				writeFile(t, dir, "hello-world.d2", `x -> y`)
+				err := runTestMain(t, ctx, dir, env, "--pad=400", "hello-world.d2", "hello-world.png")
+				assert.Success(t, err)
+				png := readFile(t, dir, "hello-world.png")
+				testdataIgnoreDiff(t, ".png", png)
+			},
+		},
+		{
+			name:   "hello_world_png_sketch",
+			skipCI: true,
+			run: func(t *testing.T, ctx context.Context, dir string, env *xos.Env) {
+				writeFile(t, dir, "hello-world.d2", `x -> y`)
+				err := runTestMain(t, ctx, dir, env, "--sketch", "hello-world.d2", "hello-world.png")
+				assert.Success(t, err)
+				png := readFile(t, dir, "hello-world.png")
+				// https://github.com/terrastruct/d2/pull/963#pullrequestreview-1323089392
+				testdataIgnoreDiff(t, ".png", png)
+			},
+		},
+		{
+			name: "multiboard/life",
+			run: func(t *testing.T, ctx context.Context, dir string, env *xos.Env) {
+				writeFile(t, dir, "life.d2", `x -> y
+layers: {
+  core: {
+    belief
+    food
+    diet
+  }
+  broker: {
+    mortgage
+    realtor
+  }
+  stocks: {
+    TSX
+    NYSE
+    NASDAQ
+  }
+}
+
+scenarios: {
+  why: {
+    y -> x
+  }
+}
+`)
+				err := runTestMain(t, ctx, dir, env, "life.d2")
+				assert.Success(t, err)
+
+				assert.TestdataDir(t, filepath.Join(dir, "life"))
+			},
+		},
+		{
+			name: "multiboard/life_index_d2",
+			run: func(t *testing.T, ctx context.Context, dir string, env *xos.Env) {
+				writeFile(t, dir, "life/index.d2", `x -> y
+layers: {
+  core: {
+    belief
+    food
+    diet
+  }
+  broker: {
+    mortgage
+    realtor
+  }
+  stocks: {
+    TSX
+    NYSE
+    NASDAQ
+  }
+}
+
+scenarios: {
+  why: {
+    y -> x
+  }
+}
+`)
+				err := runTestMain(t, ctx, dir, env, "life")
+				assert.Success(t, err)
+
+				assert.TestdataDir(t, filepath.Join(dir, "life"))
+			},
 		},
 	}
 
@@ -25,10 +130,74 @@ func TestCLI_E2E(t *testing.T) {
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 
+			if tc.skipCI && os.Getenv("CI") != "" {
+				t.SkipNow()
+			}
+
 			ctx, cancel := context.WithTimeout(ctx, time.Minute*5)
 			defer cancel()
 
-			tc.run(t, ctx)
+			dir, cleanup := assert.TempDir(t)
+			defer cleanup()
+
+			env := xos.NewEnv(nil)
+
+			tc.run(t, ctx, dir, env)
 		})
 	}
 }
+
+// We do not run the CLI in its own process even though that makes it not truly e2e to
+// test whether we're cleaning up state correctly.
+func testMain(dir string, env *xos.Env, args ...string) *xmain.TestState {
+	return &xmain.TestState{
+		Run:  d2cli.Run,
+		Env:  env,
+		Args: append([]string{"e2etests-cli/d2"}, args...),
+		PWD:  dir,
+	}
+}
+
+func runTestMain(tb testing.TB, ctx context.Context, dir string, env *xos.Env, args ...string) error {
+	tms := testMain(dir, env, args...)
+	tms.Start(tb, ctx)
+	defer tms.Cleanup(tb)
+	err := tms.Wait(ctx)
+	if err != nil {
+		return err
+	}
+	removeD2Files(tb, dir)
+	return nil
+}
+
+func writeFile(tb testing.TB, dir, fp, data string) {
+	tb.Helper()
+	err := os.MkdirAll(filepath.Dir(filepath.Join(dir, fp)), 0755)
+	assert.Success(tb, err)
+	assert.WriteFile(tb, filepath.Join(dir, fp), []byte(data), 0644)
+}
+
+func readFile(tb testing.TB, dir, fp string) []byte {
+	tb.Helper()
+	return assert.ReadFile(tb, filepath.Join(dir, fp))
+}
+
+func removeD2Files(tb testing.TB, dir string) {
+	ea, err := os.ReadDir(dir)
+	assert.Success(tb, err)
+
+	for _, e := range ea {
+		if e.IsDir() {
+			removeD2Files(tb, filepath.Join(dir, e.Name()))
+			continue
+		}
+		ext := filepath.Ext(e.Name())
+		if ext == ".d2" {
+			assert.Remove(tb, filepath.Join(dir, e.Name()))
+		}
+	}
+}
+
+func testdataIgnoreDiff(tb testing.TB, ext string, got []byte) {
+	_ = diff.Testdata(filepath.Join("testdata", tb.Name()), ext, got)
+}