1 files changed, 116 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/golang.org/x/exp@v0.0.0-20220613132600-b0d781184e0d/cmd/modgraphviz/main_test.go b/dependencies/pkg/mod/golang.org/x/exp@v0.0.0-20220613132600-b0d781184e0d/cmd/modgraphviz/main_test.go
new file mode 100644
index 0000000..bec88cf
--- /dev/null
+++ b/dependencies/pkg/mod/golang.org/x/exp@v0.0.0-20220613132600-b0d781184e0d/cmd/modgraphviz/main_test.go
@@ -0,0 +1,116 @@
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"reflect"
+	"testing"
+)
+
+func TestRun(t *testing.T) {
+	out := &bytes.Buffer{}
+	in := bytes.NewBuffer([]byte(`
+test.com/A@v1.0.0 test.com/B@v1.2.3
+test.com/B@v1.0.0 test.com/C@v4.5.6
+`))
+	if err := modgraphviz(in, out); err != nil {
+		t.Fatal(err)
+	}
+
+	gotGraph := string(out.Bytes())
+	wantGraph := `digraph gomodgraph {
+	node [ shape=rectangle fontsize=12 ]
+	"test.com/A@v1.0.0" -> "test.com/B@v1.2.3"
+	"test.com/B@v1.0.0" -> "test.com/C@v4.5.6"
+	"test.com/A@v1.0.0" [style = filled, fillcolor = green]
+	"test.com/B@v1.2.3" [style = filled, fillcolor = green]
+	"test.com/C@v4.5.6" [style = filled, fillcolor = green]
+	"test.com/B@v1.0.0" [style = filled, fillcolor = gray]
+}
+`
+	if gotGraph != wantGraph {
+		t.Fatalf("\ngot: %s\nwant: %s", gotGraph, wantGraph)
+	}
+}
+
+func TestMVSPicking(t *testing.T) {
+	for _, tc := range []struct {
+		name         string
+		in           []string
+		wantPicked   []string
+		wantUnpicked []string
+	}{
+		{
+			name:         "single node",
+			in:           []string{"foo@v0.0.1"},
+			wantPicked:   []string{"foo@v0.0.1"},
+			wantUnpicked: nil,
+		},
+		{
+			name:         "duplicate same node",
+			in:           []string{"foo@v0.0.1", "foo@v0.0.1"},
+			wantPicked:   []string{"foo@v0.0.1"},
+			wantUnpicked: nil,
+		},
+		{
+			name:         "multiple semver - same major",
+			in:           []string{"foo@v1.0.0", "foo@v1.3.7", "foo@v1.2.0", "foo@v1.0.1"},
+			wantPicked:   []string{"foo@v1.3.7"},
+			wantUnpicked: []string{"foo@v1.0.0", "foo@v1.2.0", "foo@v1.0.1"},
+		},
+		{
+			name:         "multiple semver - multiple major",
+			in:           []string{"foo@v1.0.0", "foo@v1.3.7", "foo/v2@v2.2.0", "foo/v2@v2.0.1", "foo@v1.1.1"},
+			wantPicked:   []string{"foo/v2@v2.2.0", "foo@v1.3.7"},
+			wantUnpicked: []string{"foo@v1.0.0", "foo/v2@v2.0.1", "foo@v1.1.1"},
+		},
+		{
+			name:         "semver and pseudo version",
+			in:           []string{"foo@v1.0.0", "foo@v1.3.7", "foo/v2@v2.2.0", "foo/v2@v2.0.1", "foo@v1.1.1", "foo@v0.0.0-20190311183353-d8887717615a"},
+			wantPicked:   []string{"foo/v2@v2.2.0", "foo@v1.3.7"},
+			wantUnpicked: []string{"foo@v1.0.0", "foo/v2@v2.0.1", "foo@v1.1.1", "foo@v0.0.0-20190311183353-d8887717615a"},
+		},
+		{
+			name: "multiple pseudo version",
+			in: []string{
+				"foo@v0.0.0-20190311183353-d8887717615a",
+				"foo@v0.0.0-20190227222117-0694c2d4d067",
+				"foo@v0.0.0-20190312151545-0bb0c0a6e846",
+			},
+			wantPicked: []string{"foo@v0.0.0-20190312151545-0bb0c0a6e846"},
+			wantUnpicked: []string{
+				"foo@v0.0.0-20190227222117-0694c2d4d067",
+				"foo@v0.0.0-20190311183353-d8887717615a",
+			},
+		},
+		{
+			name:         "semver and suffix",
+			in:           []string{"foo@v1.0.0", "foo@v1.3.8-rc1", "foo@v1.3.7"},
+			wantPicked:   []string{"foo@v1.3.8-rc1"},
+			wantUnpicked: []string{"foo@v1.0.0", "foo@v1.3.7"},
+		},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			buf := bytes.Buffer{}
+			for _, node := range tc.in {
+				fmt.Fprintf(&buf, "A %s\n", node)
+			}
+
+			g, err := convert(&buf)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			if !reflect.DeepEqual(g.mvsPicked, tc.wantPicked) {
+				t.Fatalf("picked: got %v, want %v", g.mvsPicked, tc.wantPicked)
+			}
+			if !reflect.DeepEqual(g.mvsUnpicked, tc.wantUnpicked) {
+				t.Fatalf("unpicked: got %v, want %v", g.mvsUnpicked, tc.wantUnpicked)
+			}
+		})
+	}
+}