1 files changed, 97 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/pkg/matcher/glob_test.go b/src/go/collectors/go.d.plugin/pkg/matcher/glob_test.go
new file mode 100644
index 000000000..09d456105
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/pkg/matcher/glob_test.go
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package matcher
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewGlobMatcher(t *testing.T) {
+	cases := []struct {
+		expr    string
+		matcher Matcher
+	}{
+		{"", stringFullMatcher("")},
+		{"a", stringFullMatcher("a")},
+		{"a*b", globMatcher("a*b")},
+		{`a*\b`, globMatcher(`a*\b`)},
+		{`a\[`, stringFullMatcher(`a[`)},
+		{`ab\`, nil},
+		{`ab[`, nil},
+		{`ab]`, stringFullMatcher("ab]")},
+	}
+	for _, c := range cases {
+		t.Run(c.expr, func(t *testing.T) {
+			m, err := NewGlobMatcher(c.expr)
+			if c.matcher != nil {
+				assert.NoError(t, err)
+				assert.Equal(t, c.matcher, m)
+			} else {
+				assert.Error(t, err)
+			}
+		})
+	}
+}
+
+func TestGlobMatcher_MatchString(t *testing.T) {
+
+	cases := []struct {
+		expected bool
+		expr     string
+		line     string
+	}{
+		{true, "/a/*/d", "/a/b/c/d"},
+		{true, "foo*", "foo123"},
+		{true, "*foo*", "123foo123"},
+		{true, "*foo", "123foo"},
+		{true, "foo*bar", "foobar"},
+		{true, "foo*bar", "foo baz bar"},
+		{true, "a[bc]d", "abd"},
+		{true, "a[^bc]d", "add"},
+		{true, "a??d", "abcd"},
+		{true, `a\??d`, "a?cd"},
+		{true, "a[b-z]d", "abd"},
+		{false, "/a/*/d", "a/b/c/d"},
+		{false, "/a/*/d", "This will fail!"},
+	}
+
+	for _, c := range cases {
+		t.Run(c.line, func(t *testing.T) {
+			m := globMatcher(c.expr)
+			assert.Equal(t, c.expected, m.Match([]byte(c.line)))
+			assert.Equal(t, c.expected, m.MatchString(c.line))
+		})
+	}
+}
+
+func BenchmarkGlob_MatchString(b *testing.B) {
+	benchmarks := []struct {
+		expr string
+		test string
+	}{
+		{"", ""},
+		{"abc", "abcd"},
+		{"*abc", "abcd"},
+		{"abc*", "abcd"},
+		{"*abc*", "abcd"},
+		{"[a-z]", "abcd"},
+	}
+	for _, bm := range benchmarks {
+		b.Run(bm.expr+"_raw", func(b *testing.B) {
+			m := globMatcher(bm.expr)
+			b.ResetTimer()
+			for i := 0; i < b.N; i++ {
+				m.MatchString(bm.test)
+			}
+		})
+		b.Run(bm.expr+"_optimized", func(b *testing.B) {
+			m, _ := NewGlobMatcher(bm.expr)
+			b.ResetTimer()
+			for i := 0; i < b.N; i++ {
+				m.MatchString(bm.test)
+			}
+		})
+	}
+}