dyoder
f0ce5a4042
- Created a new `platform` package to handle OS-specific hosts file paths. - Added implementations for macOS, Linux, and Windows to retrieve the hosts file path. - Introduced tests for the `GetHostsFilePath` function to ensure correct behavior across platforms. feat: Add DNS resolver for IP lookups - Implemented a `resolver` package for performing DNS lookups. - Created a `DNSResolver` struct with a `LookupIP` method to handle A-record lookups and CNAME resolution. - Added comprehensive tests for various DNS scenarios, including CNAME chains and error handling. chore: Refactor project structure and update dependencies - Restructured the project to follow Go's standard package layout. - Updated `go.mod` to Go 1.20 and added `golang.org/x/net` dependency. - Removed old source files and ensured a clean build with all tests passing.
57 lines
1.8 KiB
Go
57 lines
1.8 KiB
Go
package platform_test
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import (
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"os"
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"strings"
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"testing"
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"dns-helper/platform"
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)
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// T007-1: GetHostsFilePath returns a non-empty path with no error on the current OS.
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func TestGetHostsFilePathReturnsPath(t *testing.T) {
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path, err := platform.GetHostsFilePath()
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if err != nil {
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t.Fatalf("GetHostsFilePath returned unexpected error: %v", err)
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}
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if path == "" {
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t.Error("GetHostsFilePath returned empty path")
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}
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}
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// T007-2: The returned path exists on the filesystem.
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func TestGetHostsFilePathExists(t *testing.T) {
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path, err := platform.GetHostsFilePath()
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if err != nil {
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t.Fatalf("GetHostsFilePath returned unexpected error: %v", err)
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}
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if _, err := os.Stat(path); err != nil {
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t.Errorf("hosts file path %q does not exist or cannot be accessed: %v", path, err)
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}
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}
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// T024-1: GetHostsFilePath returns a path that is an absolute path (contains a
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// directory separator), ensuring the error messages that embed the path are descriptive.
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func TestGetHostsFilePathIsAbsolute(t *testing.T) {
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path, err := platform.GetHostsFilePath()
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if err != nil {
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t.Fatalf("GetHostsFilePath returned unexpected error: %v", err)
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}
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if !strings.ContainsAny(path, `/\`) {
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t.Errorf("expected an absolute path containing a directory separator, got %q", path)
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}
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}
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// T024-2: GetHostsFilePath function signature returns (string, error) — process
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// termination (os.Exit, log.Fatal, term()) is absent from the platform package.
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// This is verified statically by T023 grep/vet; the runtime counterpart is that the
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// function can be called without panicking or exiting.
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func TestGetHostsFilePathDoesNotPanic(t *testing.T) {
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defer func() {
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if r := recover(); r != nil {
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t.Errorf("GetHostsFilePath panicked: %v", r)
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}
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}()
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platform.GetHostsFilePath() //nolint:errcheck // return values checked in other tests
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}
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