system/link: use syscall dispatcher

This enables hardlink op methods to be instrumented.

Signed-off-by: Ophestra <cat@gensokyo.uk>

1 files changed, 84 insertions, 0 deletions

diff --git a/system/link_test.go b/system/link_test.go
new file mode 100644
index 00000000..b962db1a
--- /dev/null
+++ b/system/link_test.go
@@ -0,0 +1,84 @@
+package system
+
+import (
+	"testing"
+
+	"hakurei.app/container/stub"
+)
+
+func TestHardlinkOp(t *testing.T) {
+	checkOpBehaviour(t, []opBehaviourTestCase{
+		{"link", 0xdeadbeef, 0xff, &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}, []stub.Call{
+			call("verbose", stub.ExpectArgs{[]any{"linking", &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}}}, nil, nil),
+			call("link", stub.ExpectArgs{"/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, stub.UniqueError(1)),
+		}, &OpError{Op: "hardlink", Err: stub.UniqueError(1)}, nil, nil},
+
+		{"remove", 0xdeadbeef, 0xff, &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}, []stub.Call{
+			call("verbose", stub.ExpectArgs{[]any{"linking", &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}}}, nil, nil),
+			call("link", stub.ExpectArgs{"/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, nil),
+		}, nil, []stub.Call{
+			call("verbosef", stub.ExpectArgs{"removing hard link %q", []any{"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}}, nil, nil),
+			call("remove", stub.ExpectArgs{"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, stub.UniqueError(0)),
+		}, &OpError{Op: "hardlink", Err: stub.UniqueError(0), Revert: true}},
+
+		{"success skip", 0xdeadbeef, EWayland | EX11, &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}, []stub.Call{
+			call("verbose", stub.ExpectArgs{[]any{"linking", &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}}}, nil, nil),
+			call("link", stub.ExpectArgs{"/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, nil),
+		}, nil, []stub.Call{
+			call("verbosef", stub.ExpectArgs{"skipping hard link %q", []any{"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}}, nil, nil),
+		}, nil},
+
+		{"success", 0xdeadbeef, 0xff, &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}, []stub.Call{
+			call("verbose", stub.ExpectArgs{[]any{"linking", &hardlinkOp{EPulse, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"}}}, nil, nil),
+			call("link", stub.ExpectArgs{"/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, nil),
+		}, nil, []stub.Call{
+			call("verbosef", stub.ExpectArgs{"removing hard link %q", []any{"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}}, nil, nil),
+			call("remove", stub.ExpectArgs{"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse"}, nil, nil),
+		}, nil},
+	})
+
+	checkOpsBuilder(t, "LinkFileType", []opsBuilderTestCase{
+		{"type", 0xcafebabe, func(_ *testing.T, sys *I) {
+			sys.LinkFileType(User, "/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse")
+		}, []Op{
+			&hardlinkOp{User, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+		}, stub.Expect{}},
+
+		{"link", 0xcafebabe, func(_ *testing.T, sys *I) {
+			sys.Link("/run/user/1000/pulse/native", "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse")
+		}, []Op{
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+		}, stub.Expect{}},
+	})
+
+	checkOpIs(t, []opIsTestCase{
+		{"nil", (*hardlinkOp)(nil), (*hardlinkOp)(nil), false},
+		{"zero", new(hardlinkOp), new(hardlinkOp), true},
+
+		{"src differs",
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse"},
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			false},
+
+		{"dst differs",
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6", "/run/user/1000/pulse/native"},
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			false},
+
+		{"et differs",
+			&hardlinkOp{User, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			false},
+
+		{"equals",
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			&hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			true},
+	})
+
+	checkOpMeta(t, []opMetaTestCase{
+		{"link", &hardlinkOp{Process, "/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse", "/run/user/1000/pulse/native"},
+			Process, "/run/user/1000/pulse/native",
+			`"/run/user/1000/hakurei/9663730666a44cfc2a81610379e02ed6/pulse" from "/run/user/1000/pulse/native"`},
+	})
+}