go/tests/string_test.go
Snider f1d6c2a174 feat: Join() reclaimed for strings — ErrorJoin for errors
core.Join("/", "deploy", "to", "homelab") → "deploy/to/homelab"
core.Join(".", "cmd", "deploy", "description") → "cmd.deploy.description"

Join builds via Concat — same hook point for security/validation.
errors.Join wrapper renamed to ErrorJoin.
JoinPath now delegates to Join("/", ...).

Co-Authored-By: Virgil <virgil@lethean.io>
2026-03-20 12:42:10 +00:00

70 lines
1.7 KiB
Go

package core_test
import (
"testing"
. "forge.lthn.ai/core/go/pkg/core"
"github.com/stretchr/testify/assert"
)
// --- String Operations ---
func TestHasPrefix_Good(t *testing.T) {
assert.True(t, HasPrefix("--verbose", "--"))
assert.True(t, HasPrefix("-v", "-"))
assert.False(t, HasPrefix("hello", "-"))
}
func TestHasSuffix_Good(t *testing.T) {
assert.True(t, HasSuffix("test.go", ".go"))
assert.False(t, HasSuffix("test.go", ".py"))
}
func TestTrimPrefix_Good(t *testing.T) {
assert.Equal(t, "verbose", TrimPrefix("--verbose", "--"))
assert.Equal(t, "hello", TrimPrefix("hello", "--"))
}
func TestTrimSuffix_Good(t *testing.T) {
assert.Equal(t, "test", TrimSuffix("test.go", ".go"))
assert.Equal(t, "test.go", TrimSuffix("test.go", ".py"))
}
func TestContains_Good(t *testing.T) {
assert.True(t, Contains("hello world", "world"))
assert.False(t, Contains("hello world", "mars"))
}
func TestSplit_Good(t *testing.T) {
assert.Equal(t, []string{"a", "b", "c"}, Split("a/b/c", "/"))
}
func TestSplitN_Good(t *testing.T) {
assert.Equal(t, []string{"key", "value=extra"}, SplitN("key=value=extra", "=", 2))
}
func TestJoin_Good(t *testing.T) {
assert.Equal(t, "a/b/c", Join("/", "a", "b", "c"))
}
func TestReplace_Good(t *testing.T) {
assert.Equal(t, "deploy.to.homelab", Replace("deploy/to/homelab", "/", "."))
}
func TestLower_Good(t *testing.T) {
assert.Equal(t, "hello", Lower("HELLO"))
}
func TestUpper_Good(t *testing.T) {
assert.Equal(t, "HELLO", Upper("hello"))
}
func TestTrim_Good(t *testing.T) {
assert.Equal(t, "hello", Trim(" hello "))
}
func TestRuneCount_Good(t *testing.T) {
assert.Equal(t, 5, RuneCount("hello"))
assert.Equal(t, 1, RuneCount("🔥"))
assert.Equal(t, 0, RuneCount(""))
}