1 files changed, 43 insertions, 0 deletions
diff --git a/intl/components/gtest/TestMeasureUnit.cpp b/intl/components/gtest/TestMeasureUnit.cpp
new file mode 100644
index 0000000000..377ad9dc02
--- /dev/null
+++ b/intl/components/gtest/TestMeasureUnit.cpp
@@ -0,0 +1,43 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "gtest/gtest.h"
+
+#include "mozilla/intl/MeasureUnit.h"
+#include "mozilla/Span.h"
+
+namespace mozilla::intl {
+
+TEST(IntlMeasureUnit, GetAvailable)
+{
+  auto units = MeasureUnit::GetAvailable();
+  ASSERT_TRUE(units.isOk());
+
+  // Test a subset of the installed measurement units.
+  auto gigabyte = MakeStringSpan("gigabyte");
+  auto liter = MakeStringSpan("liter");
+  auto meter = MakeStringSpan("meter");
+  auto meters = MakeStringSpan("meters");  // Plural "meters" is invalid.
+
+  bool hasGigabyte = false;
+  bool hasLiter = false;
+  bool hasMeter = false;
+  bool hasMeters = false;
+
+  for (auto unit : units.unwrap()) {
+    ASSERT_TRUE(unit.isOk());
+    auto span = unit.unwrap();
+
+    hasGigabyte |= span == gigabyte;
+    hasLiter |= span == liter;
+    hasMeter |= span == meter;
+    hasMeters |= span == meters;
+  }
+
+  ASSERT_TRUE(hasGigabyte);
+  ASSERT_TRUE(hasLiter);
+  ASSERT_TRUE(hasMeter);
+  ASSERT_FALSE(hasMeters);
+}
+
+}  // namespace mozilla::intl