Add Datadog site table and OAuth URL helpers

Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>

pkg/connector/datadog_test.go

@@ -0,0 +1,73 @@
+// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package connector_test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"go.probo.inc/probo/pkg/connector"
+)
+
+func TestDatadogAuthorizeURL(t *testing.T) {
+	t.Parallel()
+
+	got, err := connector.DatadogAuthorizeURL("US3")
+	require.NoError(t, err)
+	assert.Equal(t, "https://us3.datadoghq.com/oauth2/v1/authorize", got)
+
+	got, err = connector.DatadogAuthorizeURL("US1")
+	require.NoError(t, err)
+	assert.Equal(t, "https://app.datadoghq.com/oauth2/v1/authorize", got)
+
+	_, err = connector.DatadogAuthorizeURL("BOGUS")
+	require.Error(t, err)
+}
+
+func TestDatadogTokenURL(t *testing.T) {
+	t.Parallel()
+
+	got, err := connector.DatadogTokenURL("us3.datadoghq.com")
+	require.NoError(t, err)
+	assert.Equal(t, "https://api.us3.datadoghq.com/oauth2/v1/token", got)
+
+	got, err = connector.DatadogTokenURL("datadoghq.eu")
+	require.NoError(t, err)
+	assert.Equal(t, "https://api.datadoghq.eu/oauth2/v1/token", got)
+
+	_, err = connector.DatadogTokenURL("evil.example.com")
+	require.Error(t, err)
+}
+
+func TestIsValidDatadogDomain(t *testing.T) {
+	t.Parallel()
+
+	assert.True(t, connector.IsValidDatadogDomain("datadoghq.com"))
+	assert.True(t, connector.IsValidDatadogDomain("ddog-gov.com"))
+	assert.False(t, connector.IsValidDatadogDomain("attacker.datadoghq.com.evil.com"))
+	assert.False(t, connector.IsValidDatadogDomain(""))
+}
+
+func TestDatadogSiteForDomain(t *testing.T) {
+	t.Parallel()
+
+	site, ok := connector.DatadogSiteForDomain("us5.datadoghq.com")
+	require.True(t, ok)
+	assert.Equal(t, "US5", site)
+
+	_, ok = connector.DatadogSiteForDomain("nope.com")
+	assert.False(t, ok)
+}