improve unit tests

testdata/src/chanrecv/chanrecv.go

@@ -0,0 +1,11 @@
+package chanrecv
+
+func ChanRecvOK() {
+	_, ok := <-make(chan int)
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ok
+}

testdata/src/conventional/conventional.go

@@ -0,0 +1,51 @@
+package conventional
+
+import (
+	"context"
+	"testing"
+)
+
+func Variable() {
+	var (
+		ctx context.Context
+		b   *testing.B
+		f   *testing.F
+		m   *testing.M
+		pb  *testing.PB
+		t   *testing.T
+		tb  testing.TB
+	)
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ctx
+	_ = b
+	_ = f
+	_ = m
+	_ = pb
+	_ = t
+	_ = tb
+}
+
+func Param(ctx context.Context,
+	b *testing.B,
+	f *testing.F,
+	m *testing.M,
+	pb *testing.PB,
+	t *testing.T,
+	tb testing.TB) {
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ctx
+	_ = b
+	_ = f
+	_ = m
+	_ = pb
+	_ = t
+	_ = tb
+}

testdata/src/distance/distance.go

@@ -0,0 +1,10 @@
+package distance
+
+func Variable() {
+	x := 123
+	_ = x
+}
+
+func Param(x int) {
+	_ = x
+}

testdata/src/distancereceiver/receiver.go

@@ -0,0 +1,7 @@
+package warningsreceiver
+
+type foo struct{}
+
+func (f *foo) Receiver() {
+	_ = f
+}

testdata/src/distancereturn/return.go

@@ -0,0 +1,6 @@
+package distancereturn
+
+func Return() (x int) {
+	x = 123
+	return
+}

testdata/src/falsenegativechanrecv/chanrecv .go

@@ -0,0 +1,21 @@
+package falsenegativechanrecv
+
+func ChanRecvOK_Name() {
+	_, o := <-make(chan int) // want `variable name 'o' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = o
+}
+
+func ChanRecvOK_Not2() {
+	ok := <-make(chan int) // want `variable name 'ok' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ok
+}

testdata/src/falsenegativemapindex/mapindex.go

@@ -0,0 +1,21 @@
+package falsenegativemapindex
+
+func MapIndexOK_Name() {
+	_, o := map[int]int{}[0] // want `variable name 'o' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = o
+}
+
+func MapIndexOK_Not2() {
+	ok := map[int]int{}[0] // want `variable name 'ok' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ok
+}

testdata/src/falsenegativetypeassert/typeassert.go

@@ -0,0 +1,21 @@
+package falsenegativetypeassert
+
+func TypeAssertOK_Name() {
+	_, o := interface{}(1).(int) // want `variable name 'o' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = o
+}
+
+func TypeAssertOK_Not2() {
+	ok := interface{}(1).(int) // want `variable name 'ok' is too short for the scope of its usage`
+	// fill
+	// fill
+	// fill
+	// fill
+	// fill
+	_ = ok
+}