golang testing [no test files]

I'm creating a simple test within my package directory called reverseTest.go

package main
import "testing"

func TestReverse(t *testing.T) {
    cases := []struct {
        in, want string
    }{
        {"Hello, world", "dlrow ,olleH"},
        {"Hello, 世界", "界世 ,olleH"},
        {"", ""},
    }
    for _, c := range cases {
    got := Reverse(c.in)
    if got != c.want {
        t.Errorf("Reverse(%q) == %q, want %q", c.in, got, c.want)
    }
}
}

whenever i try to run it the output is

exampleFolder[no test files] 

this is my go env

GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/juan/go"
GORACE=""
GOROOT="/usr/lib/go"
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
TERM="dumb"
CC="gcc"
GOGCCFLAGS="-g -O2 -fPIC -m64 -pthread"
CXX="g++"
CGO_ENABLED="1"

Any help will be greatly appreciated. Thanks!!