From 00cf7b603784e6189dd29abc3c32ba901b6872ce Mon Sep 17 00:00:00 2001
From: Choko <choko@curioswitch.org>
Date: Tue, 23 Aug 2022 14:55:37 +0900
Subject: [PATCH 1/2] Add test case from @ldez

---
 internal/analyzer/analyzer_test.go          |  4 ++++
 testdata/defaultclient/src/a/a.go           | 20 ++++++++++++++++++++
 testdata/defaultclient/src/config/config.go |  5 +++++
 3 files changed, 29 insertions(+)
 create mode 100644 testdata/defaultclient/src/a/a.go
 create mode 100644 testdata/defaultclient/src/config/config.go

diff --git a/internal/analyzer/analyzer_test.go b/internal/analyzer/analyzer_test.go
index d0e6f6a..9f1734e 100644
--- a/internal/analyzer/analyzer_test.go
+++ b/internal/analyzer/analyzer_test.go
@@ -20,6 +20,10 @@ func TestAnalyzer(t *testing.T) {
 			dir:     "custompattern",
 			pattern: `.*`,
 		},
+		{
+			dir:     "defaultclient",
+			pattern: `^(DefaultClient|DefaultTransport)$`,
+		},
 	}
 
 	wd, err := os.Getwd()
diff --git a/testdata/defaultclient/src/a/a.go b/testdata/defaultclient/src/a/a.go
new file mode 100644
index 0000000..b157bc6
--- /dev/null
+++ b/testdata/defaultclient/src/a/a.go
@@ -0,0 +1,20 @@
+package a
+
+import (
+	"io"
+	"net/http"
+
+	"config"
+)
+
+var DefaultClient = &http.Client{}
+
+func reassignPattern() {
+	io.EOF = nil
+
+	config.DefaultClient = nil // want "reassigning variable"
+	DefaultClient = nil
+
+	http.DefaultClient = nil    // want "reassigning variable"
+	http.DefaultTransport = nil // want "reassigning variable"
+}
diff --git a/testdata/defaultclient/src/config/config.go b/testdata/defaultclient/src/config/config.go
new file mode 100644
index 0000000..be4a5d4
--- /dev/null
+++ b/testdata/defaultclient/src/config/config.go
@@ -0,0 +1,5 @@
+package config
+
+import "net/http"
+
+var DefaultClient = &http.Client{}

From 29bc0e95b565bf2773a29e1490bc872f81205195 Mon Sep 17 00:00:00 2001
From: Choko <choko@curioswitch.org>
Date: Tue, 23 Aug 2022 15:13:08 +0900
Subject: [PATCH 2/2] Fix

---
 internal/analyzer/analyzer.go    | 2 +-
 testdata/defaults/src/a/a.go     | 3 +++
 testdata/defaults/src/d/e/f/f.go | 7 +++++++
 3 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 testdata/defaults/src/d/e/f/f.go

diff --git a/internal/analyzer/analyzer.go b/internal/analyzer/analyzer.go
index 3fff998..c4d5fd8 100644
--- a/internal/analyzer/analyzer.go
+++ b/internal/analyzer/analyzer.go
@@ -49,7 +49,7 @@ func inspect(pass *analysis.Pass, node ast.Node, checkRE *regexp.Regexp, state *
 			if err != nil {
 				return true
 			}
-			if idx := strings.IndexByte(n, '/'); idx != -1 {
+			if idx := strings.LastIndexByte(n, '/'); idx != -1 {
 				n = n[idx+1:]
 			}
 			state.imports[n] = struct{}{}
diff --git a/testdata/defaults/src/a/a.go b/testdata/defaults/src/a/a.go
index b0c22ca..b1cba6c 100644
--- a/testdata/defaults/src/a/a.go
+++ b/testdata/defaults/src/a/a.go
@@ -11,6 +11,7 @@ import cc "c"
 import (
 	"d"
 	"d/e"
+	"d/e/f"
 )
 
 var st = struct {
@@ -26,6 +27,8 @@ func foo() {
 
 	e.ErrE = nil // want "reassigning variable"
 
+	f.ErrF = nil // want "reassigning variable"
+
 	io.EOF = nil // want "reassigning variable"
 
 	st.ErrSt = errors.New("foo")
diff --git a/testdata/defaults/src/d/e/f/f.go b/testdata/defaults/src/d/e/f/f.go
new file mode 100644
index 0000000..64281cd
--- /dev/null
+++ b/testdata/defaults/src/d/e/f/f.go
@@ -0,0 +1,7 @@
+package f
+
+import "errors"
+
+var (
+	ErrF = errors.New("f")
+)