add tests for rules.on

internal/route/rules/on_test.go

@@ -1,10 +1,15 @@
 package rules
 
 import (
+	"encoding/base64"
+	"fmt"
+	"net/http"
+	"net/url"
 	"testing"
 
 	E "github.com/yusing/go-proxy/internal/error"
 	. "github.com/yusing/go-proxy/internal/utils/testing"
+	"golang.org/x/crypto/bcrypt"
 )
 
 func TestParseOn(t *testing.T) {
@@ -122,3 +127,152 @@ func TestParseOn(t *testing.T) {
 		})
 	}
 }
+
+type testCorrectness struct {
+	name    string
+	checker string
+	input   *http.Request
+	want    bool
+}
+
+func genCorrectnessTestCases(field string, genRequest func(k, v string) *http.Request) []testCorrectness {
+	return []testCorrectness{
+		{
+			name:    field + "_match",
+			checker: field + " foo bar",
+			input:   genRequest("foo", "bar"),
+			want:    true,
+		},
+		{
+			name:    field + "_no_match",
+			checker: field + " foo baz",
+			input:   genRequest("foo", "bar"),
+			want:    false,
+		},
+		{
+			name:    field + "_exists",
+			checker: field + " foo",
+			input:   genRequest("foo", "abcd"),
+			want:    true,
+		},
+		{
+			name:    field + "_not_exists",
+			checker: field + " foo",
+			input:   genRequest("bar", "abcd"),
+			want:    false,
+		},
+	}
+}
+
+func TestOnCorrectness(t *testing.T) {
+	tests := []testCorrectness{
+		{
+			name:    "method_match",
+			checker: "method GET",
+			input:   &http.Request{Method: http.MethodGet},
+			want:    true,
+		},
+		{
+			name:    "method_no_match",
+			checker: "method GET",
+			input:   &http.Request{Method: http.MethodPost},
+			want:    false,
+		},
+		{
+			name:    "path_exact_match",
+			checker: "path /example",
+			input: &http.Request{
+				URL: &url.URL{Path: "/example"},
+			},
+			want: true,
+		},
+		{
+			name:    "path_wildcard_match",
+			checker: "path /example/*",
+			input: &http.Request{
+				URL: &url.URL{Path: "/example/123"},
+			},
+			want: true,
+		},
+		{
+			name:    "remote_match",
+			checker: "remote 192.168.1.0/24",
+			input: &http.Request{
+				RemoteAddr: "192.168.1.5",
+			},
+			want: true,
+		},
+		{
+			name:    "remote_no_match",
+			checker: "remote 192.168.1.0/24",
+			input: &http.Request{
+				RemoteAddr: "192.168.2.5",
+			},
+			want: false,
+		},
+		{
+			name:    "basic_auth_correct",
+			checker: "basic_auth user " + string(E.Must(bcrypt.GenerateFromPassword([]byte("password"), bcrypt.DefaultCost))),
+			input: &http.Request{
+				Header: http.Header{
+					"Authorization": {"Basic " + base64.StdEncoding.EncodeToString([]byte("user:password"))}, // "user:password"
+				},
+			},
+			want: true,
+		},
+		{
+			name:    "basic_auth_incorrect",
+			checker: "basic_auth user " + string(E.Must(bcrypt.GenerateFromPassword([]byte("password"), bcrypt.DefaultCost))),
+			input: &http.Request{
+				Header: http.Header{
+					"Authorization": {"Basic " + base64.StdEncoding.EncodeToString([]byte("user:incorrect"))}, // "user:wrong"
+				},
+			},
+			want: false,
+		},
+	}
+
+	tests = append(tests, genCorrectnessTestCases("header", func(k, v string) *http.Request {
+		return &http.Request{
+			Header: http.Header{k: []string{v}}}
+	})...)
+	tests = append(tests, genCorrectnessTestCases("query", func(k, v string) *http.Request {
+		return &http.Request{
+			URL: &url.URL{
+				RawQuery: fmt.Sprintf("%s=%s", k, v),
+			},
+		}
+	})...)
+	tests = append(tests, genCorrectnessTestCases("cookie", func(k, v string) *http.Request {
+		return &http.Request{
+			Header: http.Header{
+				"Cookie": {fmt.Sprintf("%s=%s", k, v)},
+			},
+		}
+	})...)
+	tests = append(tests, genCorrectnessTestCases("form", func(k, v string) *http.Request {
+		return &http.Request{
+			Form: url.Values{
+				k: []string{v},
+			},
+		}
+	})...)
+	tests = append(tests, genCorrectnessTestCases("postform", func(k, v string) *http.Request {
+		return &http.Request{
+			PostForm: url.Values{
+				k: []string{v},
+			},
+		}
+	})...)
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			on, err := parseOn(tt.checker)
+			ExpectNoError(t, err)
+			got := on.Check(Cache{}, tt.input)
+			if tt.want != got {
+				t.Errorf("want %v, got %v", tt.want, got)
+			}
+		})
+	}
+}