add tests for users list (#4)

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

Author: cpanato

incidentio/users_test.go

@@ -0,0 +1,205 @@
+package incidentio
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"reflect"
+	"testing"
+)
+
+func TestUsersService_List(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/v2/users", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		testHeader(t, r, "Authorization", "Bearer test-key")
+
+		response := `{
+			"users": [
+				{
+					"id": "01FCNDV6P870EA6S7TK1DSYDG0",
+					"name": "John Doe",
+					"email": "john@example.com",
+					"role": "owner",
+					"slack": {
+						"user_id": "U01FCNDV6P8",
+						"team_id": "T01FCNDV6P8"
+					}
+				},
+				{
+					"id": "01FCNDV6P870EA6S7TK1DSYDG1",
+					"name": "Jane Smith",
+					"email": "jane@example.com",
+					"role": "admin"
+				}
+			]
+		}`
+
+		_, _ = fmt.Fprint(w, response)
+	})
+
+	ctx := context.Background()
+	users, _, err := client.Users.List(ctx, nil)
+	if err != nil {
+		t.Errorf("Users.List returned error: %v", err)
+	}
+
+	expected := []*User{
+		{
+			ID:    "01FCNDV6P870EA6S7TK1DSYDG0",
+			Name:  "John Doe",
+			Email: "john@example.com",
+			Role:  "owner",
+			Slack: &struct {
+				UserID string `json:"user_id"`
+				TeamID string `json:"team_id"`
+			}{
+				UserID: "U01FCNDV6P8",
+				TeamID: "T01FCNDV6P8",
+			},
+		},
+		{
+			ID:    "01FCNDV6P870EA6S7TK1DSYDG1",
+			Name:  "Jane Smith",
+			Email: "jane@example.com",
+			Role:  "admin",
+		},
+	}
+
+	if !reflect.DeepEqual(users, expected) {
+		t.Errorf("Users.List returned %+v, want %+v", users, expected)
+	}
+}
+
+func TestUsersService_List_EmptyResponse(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/v2/users", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		testHeader(t, r, "Authorization", "Bearer test-key")
+
+		response := `{
+			"users": []
+		}`
+
+		_, _ = fmt.Fprint(w, response)
+	})
+
+	ctx := context.Background()
+	users, _, err := client.Users.List(ctx, nil)
+	if err != nil {
+		t.Errorf("Users.List returned error: %v", err)
+	}
+
+	if len(users) != 0 {
+		t.Errorf("Users.List returned %d users, want 0", len(users))
+	}
+}
+
+func TestUsersService_List_HTTPError(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/v2/users", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		w.WriteHeader(http.StatusInternalServerError)
+		response := `{
+			"type": "internal_error",
+			"status": 500,
+			"detail": "Internal server error"
+		}`
+		_, _ = fmt.Fprint(w, response)
+	})
+
+	ctx := context.Background()
+	users, resp, err := client.Users.List(ctx, nil)
+
+	if err == nil {
+		t.Error("Expected error, got nil")
+	}
+
+	if users != nil {
+		t.Errorf("Users.List returned users %+v, want nil", users)
+	}
+
+	if resp == nil {
+		t.Error("Expected response, got nil")
+	} else if resp.StatusCode != http.StatusInternalServerError {
+		t.Errorf("Expected status %d, got %d", http.StatusInternalServerError, resp.StatusCode)
+	}
+}
+
+func TestUsersService_List_InvalidJSON(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/v2/users", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		response := `{"invalid": json}`
+		_, _ = fmt.Fprint(w, response)
+	})
+
+	ctx := context.Background()
+	users, _, err := client.Users.List(ctx, nil)
+
+	if err == nil {
+		t.Error("Expected error, got nil")
+	}
+
+	if users != nil {
+		t.Errorf("Users.List returned users %+v, want nil", users)
+	}
+}
+
+func TestUsersService_List_WithoutSlack(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/v2/users", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		testHeader(t, r, "Authorization", "Bearer test-key")
+
+		response := `{
+			"users": [
+				{
+					"id": "01FCNDV6P870EA6S7TK1DSYDG0",
+					"name": "John Doe",
+					"email": "john@example.com",
+					"role": "owner"
+				}
+			]
+		}`
+
+		_, _ = fmt.Fprint(w, response)
+	})
+
+	ctx := context.Background()
+	users, _, err := client.Users.List(ctx, nil)
+	if err != nil {
+		t.Errorf("Users.List returned error: %v", err)
+	}
+
+	if len(users) != 1 {
+		t.Errorf("Users.List returned %d users, want 1", len(users))
+		return
+	}
+
+	user := users[0]
+	if user.Slack != nil {
+		t.Errorf("Users.List returned user with Slack data %+v, want nil", user.Slack)
+	}
+
+	expected := &User{
+		ID:    "01FCNDV6P870EA6S7TK1DSYDG0",
+		Name:  "John Doe",
+		Email: "john@example.com",
+		Role:  "owner",
+	}
+
+	if !reflect.DeepEqual(user, expected) {
+		t.Errorf("Users.List returned %+v, want %+v", user, expected)
+	}
+}