Add authentication test

app/security_test.go

@@ -0,0 +1,108 @@
+package app
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestAuthenticate(t *testing.T) {
+	type args struct {
+		config   *Config
+		username string
+		password string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    *AuthInfo
+		wantErr bool
+	}{
+		{
+			"empty username",
+			args{
+				config:   &Config{},
+				username: "",
+				password: "password",
+			},
+			&AuthInfo{
+				Username:      "",
+				Authenticated: false,
+			},
+			true,
+		},
+		{
+			"empty password",
+			args{
+				config:   &Config{},
+				username: "foo",
+				password: "",
+			},
+			&AuthInfo{
+				Username:      "foo",
+				Authenticated: false,
+			},
+			true,
+		},
+		{
+			"user not found",
+			args{
+				config: &Config{Users: map[string]*UserInfo{
+					"bar": nil,
+				}},
+				username: "foo",
+				password: "password",
+			},
+			&AuthInfo{
+				Username:      "foo",
+				Authenticated: false,
+			},
+			true,
+		},
+		{
+			"password doesn't match",
+			args{
+				config: &Config{Users: map[string]*UserInfo{
+					"foo": {
+						Password: GenHash([]byte("not-my-password")),
+					},
+				}},
+				username: "foo",
+				password: "password",
+			},
+			&AuthInfo{
+				Username:      "foo",
+				Authenticated: false,
+			},
+			true,
+		},
+		{
+			"all fine",
+			args{
+				config: &Config{Users: map[string]*UserInfo{
+					"foo": {
+						Password: GenHash([]byte("password")),
+					},
+				}},
+				username: "foo",
+				password: "password",
+			},
+			&AuthInfo{
+				Username:      "foo",
+				Authenticated: true,
+			},
+			false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := authenticate(tt.args.config, tt.args.username, tt.args.password)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("authenticate() name = %v, error = %v, wantErr %v", tt.name, err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("authenticate() name = %v, got = %v, want %v", tt.name, got, tt.want)
+			}
+		})
+	}
+}