add tests

Author: SVilgelm

test/testdata/fix/in/govet_fieldalignment.go

@@ -0,0 +1,23 @@
+//args: -Egovet
+//config: linters-settings.govet.enable=fieldalignment
+package p
+
+import "log"
+
+type gvfaGood struct {
+	y int32
+	x byte
+	z byte
+}
+
+type gvfaBad struct {
+	x byte
+	y int32
+	z byte
+}
+
+func test() {
+	g := gvfaGood{1, 2, 3}
+	b := gvfaBad{1, 2, 3}
+	log.Printf("good: %v; bad: %v", g, b)
+}

test/testdata/fix/out/govet_fieldalignment.go

@@ -0,0 +1,23 @@
+//args: -Egovet
+//config: linters-settings.govet.enable=fieldalignment
+package p
+
+import "log"
+
+type gvfaGood struct {
+	y int32
+	x byte
+	z byte
+}
+
+type gvfaBad struct {
+	y int32
+	x byte
+	z byte
+}
+
+func test() {
+	g := gvfaGood{1, 2, 3}
+	b := gvfaBad{1, 2, 3}
+	log.Printf("good: %v; bad: %v", g, b)
+}