zfs: generalize dry send information for normal sends and with resume token

This is in preparation for resumable send & recv, thus we just don't use the ResumeToken field for the time being.
2018-10-18 15:45:58 +02:00
parent 1f072936c5
commit 6fcf0635a5
3 changed files with 285 additions and 45 deletions
@@ -68,3 +68,134 @@ func TestZFSPropertySource(t *testing.T) {
 	}

 }
+
+func TestDrySendInfo(t *testing.T) {
+
+	// # full send
+	// $ zfs send -Pnv -t 1-9baebea70-b8-789c636064000310a500c4ec50360710e72765a52697303030419460caa7a515a79680647ce0f26c48f2499525a9c5405ac3c90fabfe92fcf4d2cc140686b30972c7850efd0cd24092e704cbe725e6a632305415e5e797e803cd2ad14f743084b805001b201795
+	fullSend := `
+resume token contents:
+nvlist version: 0
+	object = 0x2
+	offset = 0x4c0000
+	bytes = 0x4e4228
+	toguid = 0x52f9c212c71e60cd
+	toname = zroot/test/a@1
+full	zroot/test/a@1	5389768
+`
+
+	// # incremental send with token
+	// $ zfs send -nvP -t 1-ef01e717e-e0-789c636064000310a501c49c50360710a715e5e7a69766a63040c1d904b9e342877e062900d9ec48eaf293b252934b181898a0ea30e4d3d28a534b40323e70793624f9a4ca92d46220fdc1ce0fabfe927c882bc46c8a0a9f71ad3baf8124cf0996cf4bcc4d6560a82acacf2fd1079a55a29fe86004710b00d8ae1f93
+	incSend := `
+resume token contents:
+nvlist version: 0
+	fromguid = 0x52f9c212c71e60cd
+	object = 0x2
+	offset = 0x4c0000
+	bytes = 0x4e3ef0
+	toguid = 0xcfae0ae671723c16
+	toname = zroot/test/a@2
+incremental	zroot/test/a@1	zroot/test/a@2	5383936
+`
+
+	// # incremental send with token + bookmarmk
+	// $ zfs send -nvP -t 1-ef01e717e-e0-789c636064000310a501c49c50360710a715e5e7a69766a63040c1d904b9e342877e062900d9ec48eaf293b252934b181898a0ea30e4d3d28a534b40323e70793624f9a4ca92d46220fdc1ce0fabfe927c882bc46c8a0a9f71ad3baf8124cf0996cf4bcc4d6560a82acacf2fd1079a55a29fe86004710b00d8ae1f93
+	incSendBookmark := `
+resume token contents:
+nvlist version: 0
+	fromguid = 0x52f9c212c71e60cd
+	object = 0x2
+	offset = 0x4c0000
+	bytes = 0x4e3ef0
+	toguid = 0xcfae0ae671723c16
+	toname = zroot/test/a@2
+incremental	zroot/test/a#1	zroot/test/a@2	5383312
+
+`
+
+	// incremental send without token
+	// $ sudo zfs send -nvP -i @1 zroot/test/a@2
+	incNoToken := `
+incremental	1	zroot/test/a@2	10511856
+size	10511856
+`
+	// full send without token
+	// $ sudo zfs send -nvP  zroot/test/a@3
+	fullNoToken := `
+full	zroot/test/a@3	10518512
+size	10518512
+`
+
+	type tc struct {
+		name string
+		in string
+		exp *DrySendInfo
+		expErr bool
+	}
+
+	tcs := []tc{
+		{
+			name: "fullSend", in: fullSend,
+			exp: &DrySendInfo{
+				Type: DrySendTypeFull,
+				From: "",
+				To: "zroot/test/a@1",
+				SizeEstimate: 5389768,
+			},
+		},
+		{
+			name: "incSend", in: incSend,
+			exp: &DrySendInfo{
+				Type:         DrySendTypeIncremental,
+				From:         "zroot/test/a@1",
+				To:           "zroot/test/a@2",
+				SizeEstimate: 5383936,
+			},
+		},
+		{
+			name: "incSendBookmark", in: incSendBookmark,
+			exp: &DrySendInfo{
+				Type:         DrySendTypeIncremental,
+				From:         "zroot/test/a#1",
+				To:           "zroot/test/a@2",
+				SizeEstimate: 5383312,
+			},
+		},
+		{
+			name: "incNoToken", in: incNoToken,
+			//exp: &DrySendInfo{
+			//	Type:         DrySendTypeIncremental,
+			//	From:         "1", // yes, this is actually correct on ZoL 0.7.11
+			//	To:           "zroot/test/a@2",
+			//	SizeEstimate: 10511856,
+			//},
+			expErr: true,
+		},
+		{
+			name: "fullNoToken", in: fullNoToken,
+			exp: &DrySendInfo{
+				Type: DrySendTypeFull,
+				From: "",
+				To: "zroot/test/a@3",
+				SizeEstimate: 10518512,
+			},
+		},
+	}
+
+	for _, tc := range tcs {
+		t.Run(tc.name, func(t *testing.T) {
+
+			in := tc.in[1:] // strip first newline
+			var si DrySendInfo
+			err := si.unmarshalZFSOutput([]byte(in))
+			if tc.expErr {
+				assert.Error(t, err)
+			}
+			t.Logf("%#v", &si)
+			if tc.exp != nil {
+				assert.Equal(t, tc.exp, &si)
+			}
+
+		})
+	}
+}