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args_test: add additional helper functions

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* noArgsWithArgs
* validWithInvalidArgs
* minimumNArgsWithLessArgs
* maximumNArgsWithMoreArgs
* exactArgsWithInvalidCount
* rangeArgsWithInvalidCount
This commit is contained in:
umarcor 2019-03-18 23:45:36 +01:00
parent 989590274f
commit 4120f6e4dc
1 changed files with 78 additions and 85 deletions
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163
args_test.go
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@ -26,6 +26,72 @@ func expectSuccess(output string, err error, t *testing.T) {
}
}
func validWithInvalidArgs(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := `invalid argument "a" for "c"`
if got != expected {
t.Errorf("Expected: %q, got: %q", expected, got)
}
}
func noArgsWithArgs(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := `unknown command "illegal" for "c"`
if got != expected {
t.Errorf("Expected: %q, got: %q", expected, got)
}
}
func minimumNArgsWithLessArgs(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "requires at least 2 arg(s), only received 1"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
}
func maximumNArgsWithMoreArgs(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts at most 2 arg(s), received 3"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
}
func exactArgsWithInvalidCount(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts 2 arg(s), received 3"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
}
func rangeArgsWithInvalidCount(err error, t *testing.T) {
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts between 2 and 4 arg(s), received 1"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
}
func TestNoArgs(t *testing.T) {
c := getCommand(NoArgs, false)
output, err := executeCommand(c)
@ -34,39 +100,20 @@ func TestNoArgs(t *testing.T) {
func TestNoArgsWithArgs(t *testing.T) {
c := getCommand(NoArgs, false)
_, err := executeCommand(c, "illegal")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := `unknown command "illegal" for "c"`
if got != expected {
t.Errorf("Expected: %q, got: %q", expected, got)
}
noArgsWithArgs(err, t)
}
func TestOnlyValidArgs(t *testing.T) {
c := getCommand(OnlyValidArgs, true)
output, err := executeCommand(c, "one", "two")
expectSuccess(output, err, t)
}
func TestOnlyValidArgsWithInvalidArgs(t *testing.T) {
c := getCommand(OnlyValidArgs, true)
_, err := executeCommand(c, "a")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := `invalid argument "a" for "c"`
if got != expected {
t.Errorf("Expected: %q, got: %q", expected, got)
}
validWithInvalidArgs(err, t)
}
func TestArbitraryArgs(t *testing.T) {
@ -84,16 +131,7 @@ func TestMinimumNArgs(t *testing.T) {
func TestMinimumNArgsWithLessArgs(t *testing.T) {
c := getCommand(MinimumNArgs(2), false)
_, err := executeCommand(c, "a")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "requires at least 2 arg(s), only received 1"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
minimumNArgsWithLessArgs(err, t)
}
func TestMaximumNArgs(t *testing.T) {
@ -105,16 +143,7 @@ func TestMaximumNArgs(t *testing.T) {
func TestMaximumNArgsWithMoreArgs(t *testing.T) {
c := getCommand(MaximumNArgs(2), false)
_, err := executeCommand(c, "a", "b", "c")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts at most 2 arg(s), received 3"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
maximumNArgsWithMoreArgs(err, t)
}
func TestExactArgs(t *testing.T) {
@ -126,52 +155,25 @@ func TestExactArgs(t *testing.T) {
func TestExactArgsWithInvalidCount(t *testing.T) {
c := getCommand(ExactArgs(2), false)
_, err := executeCommand(c, "a", "b", "c")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts 2 arg(s), received 3"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
exactArgsWithInvalidCount(err, t)
}
func TestExactValidArgs(t *testing.T) {
c := getCommand(ExactValidArgs(3), true)
output, err := executeCommand(c, "two", "three", "one")
output, err := executeCommand(c, "three", "one", "two")
expectSuccess(output, err, t)
}
func TestExactValidArgsWithInvalidCount(t *testing.T) {
c := getCommand(ExactValidArgs(2), false)
_, err := executeCommand(c, "two", "three", "one")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts 2 arg(s), received 3"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
_, err := executeCommand(c, "three", "one", "two")
exactArgsWithInvalidCount(err, t)
}
func TestExactValidArgsWithInvalidArgs(t *testing.T) {
c := getCommand(ExactValidArgs(1), true)
_, err := executeCommand(c, "a")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := `invalid argument "a" for "c"`
if got != expected {
t.Errorf("Expected: %q, got: %q", expected, got)
}
c := getCommand(ExactValidArgs(3), true)
_, err := executeCommand(c, "three", "a", "two")
validWithInvalidArgs(err, t)
}
func TestRangeArgs(t *testing.T) {
@ -183,16 +185,7 @@ func TestRangeArgs(t *testing.T) {
func TestRangeArgsWithInvalidCount(t *testing.T) {
c := getCommand(RangeArgs(2, 4), false)
_, err := executeCommand(c, "a")
if err == nil {
t.Fatal("Expected an error")
}
got := err.Error()
expected := "accepts between 2 and 4 arg(s), received 1"
if got != expected {
t.Fatalf("Expected %q, got %q", expected, got)
}
rangeArgsWithInvalidCount(err, t)
}
func TestRootTakesNoArgs(t *testing.T) {