diff --git a/android/test_asserts.go b/android/test_asserts.go
new file mode 100644
index 0000000..d0de523
--- /dev/null
+++ b/android/test_asserts.go
@@ -0,0 +1,134 @@
+// Copyright 2021 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package android
+
+import (
+	"reflect"
+	"strings"
+	"testing"
+)
+
+// This file contains general purpose test assert functions.
+
+// AssertBoolEquals checks if the expected and actual values are equal and if they are not then it
+// reports an error prefixed with the supplied message and including a reason for why it failed.
+func AssertBoolEquals(t *testing.T, message string, expected bool, actual bool) {
+	t.Helper()
+	if actual != expected {
+		t.Errorf("%s: expected %t, actual %t", message, expected, actual)
+	}
+}
+
+// AssertStringEquals checks if the expected and actual values are equal and if they are not then
+// it reports an error prefixed with the supplied message and including a reason for why it failed.
+func AssertStringEquals(t *testing.T, message string, expected string, actual string) {
+	t.Helper()
+	if actual != expected {
+		t.Errorf("%s: expected %s, actual %s", message, expected, actual)
+	}
+}
+
+// AssertErrorMessageEquals checks if the error is not nil and has the expected message. If it does
+// not then this reports an error prefixed with the supplied message and including a reason for why
+// it failed.
+func AssertErrorMessageEquals(t *testing.T, message string, expected string, actual error) {
+	t.Helper()
+	if actual == nil {
+		t.Errorf("Expected error but was nil")
+	} else if actual.Error() != expected {
+		t.Errorf("%s: expected %s, actual %s", message, expected, actual.Error())
+	}
+}
+
+// AssertTrimmedStringEquals checks if the expected and actual values are the same after trimming
+// leading and trailing spaces from them both. If they are not then it reports an error prefixed
+// with the supplied message and including a reason for why it failed.
+func AssertTrimmedStringEquals(t *testing.T, message string, expected string, actual string) {
+	t.Helper()
+	AssertStringEquals(t, message, strings.TrimSpace(expected), strings.TrimSpace(actual))
+}
+
+// AssertStringDoesContain checks if the string contains the expected substring. If it does not
+// then it reports an error prefixed with the supplied message and including a reason for why it
+// failed.
+func AssertStringDoesContain(t *testing.T, message string, s string, expectedSubstring string) {
+	t.Helper()
+	if !strings.Contains(s, expectedSubstring) {
+		t.Errorf("%s: could not find %q within %q", message, expectedSubstring, s)
+	}
+}
+
+// AssertStringDoesNotContain checks if the string contains the expected substring. If it does then
+// it reports an error prefixed with the supplied message and including a reason for why it failed.
+func AssertStringDoesNotContain(t *testing.T, message string, s string, unexpectedSubstring string) {
+	t.Helper()
+	if strings.Contains(s, unexpectedSubstring) {
+		t.Errorf("%s: unexpectedly found %q within %q", message, unexpectedSubstring, s)
+	}
+}
+
+// AssertStringListContains checks if the list of strings contains the expected string. If it does
+// not then it reports an error prefixed with the supplied message and including a reason for why it
+// failed.
+func AssertStringListContains(t *testing.T, message string, list []string, expected string) {
+	t.Helper()
+	if !InList(expected, list) {
+		t.Errorf("%s: could not find %q within %q", message, expected, list)
+	}
+}
+
+// AssertArrayString checks if the expected and actual values are equal and if they are not then it
+// reports an error prefixed with the supplied message and including a reason for why it failed.
+func AssertArrayString(t *testing.T, message string, expected, actual []string) {
+	t.Helper()
+	if len(actual) != len(expected) {
+		t.Errorf("%s: expected %d (%q), actual (%d) %q", message, len(expected), expected, len(actual), actual)
+		return
+	}
+	for i := range actual {
+		if actual[i] != expected[i] {
+			t.Errorf("%s: expected %d-th, %q (%q), actual %q (%q)",
+				message, i, expected[i], expected, actual[i], actual)
+			return
+		}
+	}
+}
+
+// AssertDeepEquals checks if the expected and actual values are equal using reflect.DeepEqual and
+// if they are not then it reports an error prefixed with the supplied message and including a
+// reason for why it failed.
+func AssertDeepEquals(t *testing.T, message string, expected interface{}, actual interface{}) {
+	t.Helper()
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("%s: expected:\n  %#v\n got:\n  %#v", message, expected, actual)
+	}
+}
+
+// AssertPanic checks that the supplied function panics as expected.
+func AssertPanic(t *testing.T, message string, funcThatShouldPanic func()) {
+	t.Helper()
+	panicked := false
+	func() {
+		defer func() {
+			if x := recover(); x != nil {
+				panicked = true
+			}
+		}()
+		funcThatShouldPanic()
+	}()
+	if !panicked {
+		t.Error(message)
+	}
+}