move implementation to internal/ directory (#828)

internal/platformtest/tests/idempotentBookmark.go

@@ -0,0 +1,62 @@
+package tests
+
+import (
+	"fmt"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/zrepl/zrepl/internal/platformtest"
+	"github.com/zrepl/zrepl/internal/zfs"
+)
+
+func IdempotentBookmark(ctx *platformtest.Context) {
+
+	platformtest.Run(ctx, platformtest.PanicErr, ctx.RootDataset, `
+		DESTROYROOT
+		CREATEROOT
+		+  "foo bar"
+		+  "foo bar@a snap"
+		+  "foo bar@another snap"
+	`)
+
+	fs := fmt.Sprintf("%s/foo bar", ctx.RootDataset)
+
+	asnap := fsversion(ctx, fs, "@a snap")
+	anotherSnap := fsversion(ctx, fs, "@another snap")
+
+	aBookmark, err := zfs.ZFSBookmark(ctx, fs, asnap, "a bookmark")
+	if err != nil {
+		panic(err)
+	}
+
+	// do it again, should be idempotent
+	aBookmarkIdemp, err := zfs.ZFSBookmark(ctx, fs, asnap, "a bookmark")
+	if err != nil {
+		panic(err)
+	}
+	assert.Equal(ctx, aBookmark, aBookmarkIdemp)
+
+	// should fail for another snapshot
+	_, err = zfs.ZFSBookmark(ctx, fs, anotherSnap, "a bookmark")
+	if err == nil {
+		panic(err)
+	}
+	if _, ok := err.(*zfs.BookmarkExists); !ok {
+		panic(fmt.Sprintf("has type %T", err))
+	}
+
+	// destroy the snapshot
+	if err := zfs.ZFSDestroy(ctx, fmt.Sprintf("%s@a snap", fs)); err != nil {
+		panic(err)
+	}
+
+	// do it again, should fail with special error type
+	_, err = zfs.ZFSBookmark(ctx, fs, asnap, "a bookmark")
+	if err == nil {
+		panic(err)
+	}
+	if _, ok := err.(*zfs.DatasetDoesNotExist); !ok {
+		panic(fmt.Sprintf("has type %T", err))
+	}
+
+}