An attempt at a helper function for table driven tests in go.

table-test-helper.go

package gopol

import (
	// "fmt"
	// "io"
	// "log"
	// "bytes"
	// "fmt"
	// "log"
	// "bufio"
	// "os"
	// "os/exec"
	// "strings"
	"testing"
)

type testCasesStruct []struct {
	n        string
	expected bool
}
type valUserInType func(string) bool

var curPairInputTestCases = []struct {
	n        string
	expected bool
}{
	{"1/d", false},
	{"a/d", false},
	{"a", false},
	{"", false},
	{"_", false},
	{"/", false},
	{"ETF_#@$", false},
	{"ETF_BTC", false},
	{"asd/sad", true},
	{"123/321", false},
	{"3ta/321", false},
	{"123/y43", false},
	{"abc/abcd", false},
	{"abcd/abc", false},
	{"123/321", false},
}

func TestGoPolSuite(t *testing.T) {
	methodTester(t, validateCurPairInput, curPairInputTestCases)
}

// https://routley.io/tech/2017/11/05/intermediate-go-testing.html
func methodTester(t *testing.T, testingMethod valUserInType, testCases testCasesStruct) {
	t.Helper()
	for _, tt := range testCases {
		actual := testingMethod(tt.n)
		if actual != tt.expected {
			t.Errorf("\n%v(%v)\n expected: %v\n actual: %v\n", testingMethod, tt.n, tt.expected, actual)
		}
	}
}