Add unit test for methods with generic receivers

gocognit118_test.go

@@ -0,0 +1,17 @@
+//go:build go1.18
+// +build go1.18
+
+package gocognit_test
+
+import (
+	"testing"
+
+	"github.com/uudashr/gocognit"
+	"golang.org/x/tools/go/analysis/analysistest"
+)
+
+func TestAnalyzer_Generic(t *testing.T) {
+	testdata := analysistest.TestData()
+	gocognit.Analyzer.Flags.Set("over", "0")
+	analysistest.Run(t, testdata, gocognit.Analyzer, "c")
+}

testdata/src/c/c.go

@@ -0,0 +1,36 @@
+package testdata
+
+type Node[T any] struct {
+}
+
+func (n *Node[T]) String() string { // want "cognitive complexity 1 of func \\(\\*Node\\[T\\]\\)\\.String is high \\(> 0\\)"
+	if n != nil { // +1
+		return "Node"
+	}
+
+	return ""
+} // total complexity = 1
+
+type Pair[K any, V any] struct {
+	Key   K
+	Value V
+}
+
+func (p *Pair[K, V]) String() string { // want "cognitive complexity 1 of func \\(\\*Pair\\[K, V\\]\\)\\.String is high \\(> 0\\)"
+	if p != nil { // +1
+		return "Pair"
+	}
+
+	return ""
+} // total complexity = 1
+
+type Triple[K any, V any, T any] struct {
+}
+
+func (t *Triple[K, V, T]) String() string { // want "cognitive complexity 1 of func \\(\\*Triple\\[K, V, T\\]\\)\\.String is high \\(> 0\\)"
+	if t != nil { // +1 `
+		return "Triple"
+	}
+
+	return ""
+} // total complexity = 1