go-brace/parsetostring_test.go

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2023-11-22 14:51:50 +00:00
package brace_test
import (
"testing"
"io"
"strings"
"sourcecode.social/reiver/go-utf8"
"sourcecode.social/reiver/go-brace"
)
func TestParseToString(t *testing.T) {
tests := []struct{
Value string
Expected string
}{
{
Value: `{}`,
Expected: ``,
},
{
Value: `{apple}`,
Expected: `apple`,
},
{
Value: `{banana}`,
Expected: `banana`,
},
{
Value: `{cherry}`,
Expected: `cherry`,
},
{
Value: `{\{}`,
Expected: `{`,
},
{
Value: `{\}}`,
Expected: `}`,
},
{
Value: `{$x}`,
Expected: `$x`,
},
{
Value: `{$xy}`,
Expected: `$xy`,
},
{
Value: `{$xyz}`,
Expected: `$xyz`,
},
{
Value: `{ set var 123 }`,
Expected: ` set var 123 `,
},
{
Value: `{ set var {123} }`,
Expected: ` set var {123} `,
},
{
Value: `{ set {var} {123} }`,
Expected: ` set {var} {123} `,
},
{
Value: `{ set var {{1}{2}{3}} }`,
Expected: ` set var {{1}{2}{3}} `,
},
}
for testNumber, test := range tests {
var reader io.Reader = strings.NewReader(test.Value)
var runescanner io.RuneScanner = utf8.NewRuneScanner(reader)
expected := test.Expected
actual, err := brace.ParseToString(runescanner)
if nil != err {
t.Errorf("For test #%d, did not expect an error but actually got one.", testNumber)
t.Logf("ERROR: (%T) %s", err, err)
t.Logf("EXPECTED: %q", expected)
t.Logf("VALUE: %q", test.Value)
continue
}
if expected != actual {
t.Errorf("For test #%d, the actual parsed value is not what was expected.", testNumber)
t.Logf("EXPECTED: %q", expected)
t.Logf("ACTUAL: %q", actual)
t.Logf("VALUE: %q", test.Value)
continue
}
}
}
func TestParseToString_fail(t *testing.T) {
tests := []struct{
Value string
ExpectedErr string
}{
{
Value: ``,
ExpectedErr: `brace: problem reading character №1 of what should have been a brace-string literal: empty string`,
},
{
Value: `apple`,
ExpectedErr: `brace: expected first character of brace-string literal to be a '{' (U+007B), but actually was 'a' (U+0061)`,
},
{
Value: `banana`,
ExpectedErr: `brace: expected first character of brace-string literal to be a '{' (U+007B), but actually was 'b' (U+0062)`,
},
{
Value: `cherry`,
ExpectedErr: `brace: expected first character of brace-string literal to be a '{' (U+007B), but actually was 'c' (U+0063)`,
},
{
Value: `{`,
ExpectedErr: `brace: problem reading character №2 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 1 more '}' (U+007D) character(s)`,
},
{
Value: `}`,
ExpectedErr: `brace: expected first character of brace-string literal to be a '{' (U+007B), but actually was '}' (U+007D)`,
},
{
Value: `"`,
ExpectedErr: `brace: expected first character of brace-string literal to be a '{' (U+007B), but actually was '"' (U+0022)`,
},
{
Value: "{ this is {a",
ExpectedErr: "brace: problem reading character №13 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 2 more '}' (U+007D) character(s)",
},
{
Value: "{ this {is} {a",
ExpectedErr: "brace: problem reading character №15 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 2 more '}' (U+007D) character(s)",
},
{
Value: "{ {thi}s i{s} {a",
ExpectedErr: "brace: problem reading character №17 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 2 more '}' (U+007D) character(s)",
},
{
Value: "{ this is {a {dangling",
ExpectedErr: "brace: problem reading character №23 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 3 more '}' (U+007D) character(s)",
},
{
Value: "{ this {is} {a {dangling",
ExpectedErr: "brace: problem reading character №25 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 3 more '}' (U+007D) character(s)",
},
{
Value: "{ {thi}s i{s} {a {dangling",
ExpectedErr: "brace: problem reading character №27 of what should have been a brace-string literal: file ended before the brace-string literal was closed — expected 3 more '}' (U+007D) character(s)",
},
}
for testNumber, test := range tests {
var reader io.Reader = strings.NewReader(test.Value)
var runescanner io.RuneScanner = utf8.NewRuneScanner(reader)
_, err := brace.ParseToString(runescanner)
if nil == err {
t.Errorf("For test #%d, expected an error but did not actually get one.", testNumber)
t.Logf("ERROR: (%T) %s", err, err)
t.Logf("EXPECTED-ERROR: %q", test.ExpectedErr)
t.Logf("VALUE: %q", test.Value)
continue
}
{
expected := test.ExpectedErr
actual := err.Error()
if expected != actual {
t.Errorf("For test #%d, the actual error value is not what was expected.", testNumber)
t.Logf("EXPECTED-ERROR: %q", expected)
t.Logf("ACTUAL-ERROR: %q", actual)
t.Logf("VALUE: %q", test.Value)
continue
}
}
}
}