57 lines
1.8 KiB
Go
57 lines
1.8 KiB
Go
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package capture
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import (
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"testing"
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)
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// TestValidateBPFFilter verifies that a valid BPF expression returns nil error.
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func TestValidateBPFFilter(t *testing.T) {
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if err := ValidateBPFFilter("port 53"); err != nil {
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t.Errorf("ValidateBPFFilter(\"port 53\") = %v; want nil", err)
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}
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}
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// TestValidateBPFFilterEmpty verifies that empty string returns nil (no filter).
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func TestValidateBPFFilterEmpty(t *testing.T) {
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if err := ValidateBPFFilter(""); err != nil {
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t.Errorf("ValidateBPFFilter(\"\") = %v; want nil", err)
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}
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}
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// TestValidateBPFFilterWhitespace verifies that whitespace-only string returns nil.
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func TestValidateBPFFilterWhitespace(t *testing.T) {
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if err := ValidateBPFFilter(" "); err != nil {
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t.Errorf("ValidateBPFFilter(\" \") = %v; want nil", err)
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}
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}
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// TestValidateBPFFilterInvalid verifies that invalid BPF expression returns error.
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func TestValidateBPFFilterInvalid(t *testing.T) {
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err := ValidateBPFFilter("invalid garbage xyz")
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if err == nil {
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t.Error("ValidateBPFFilter(\"invalid garbage xyz\") = nil; want non-nil error")
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}
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}
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// TestCompileSoftwareBPF verifies that a valid expression compiles to a non-nil VM.
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func TestCompileSoftwareBPF(t *testing.T) {
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vm, err := CompileSoftwareBPF("tcp")
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if err != nil {
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t.Errorf("CompileSoftwareBPF(\"tcp\") error: %v", err)
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}
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if vm == nil {
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t.Error("CompileSoftwareBPF(\"tcp\") returned nil VM; want non-nil")
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}
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}
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// TestCompileSoftwareBPFInvalid verifies that invalid expression returns nil VM and non-nil error.
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func TestCompileSoftwareBPFInvalid(t *testing.T) {
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vm, err := CompileSoftwareBPF("invalid garbage")
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if err == nil {
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t.Error("CompileSoftwareBPF(\"invalid garbage\") error = nil; want non-nil")
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}
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if vm != nil {
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t.Error("CompileSoftwareBPF(\"invalid garbage\") VM non-nil; want nil")
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}
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}
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