Mike Gerwitz

Activist for User Freedom

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-rw-r--r--test/bucket/delta.ts99
1 files changed, 99 insertions, 0 deletions
diff --git a/test/bucket/delta.ts b/test/bucket/delta.ts
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+++ b/test/bucket/delta.ts
@@ -0,0 +1,99 @@
+/**
+ * Test the delta generated from two key/value stores
+ *
+ * Copyright (C) 2010-2019 R-T Specialty, LLC.
+ *
+ * This file is part of liza.
+ *
+ * liza is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+import { createDelta as sut, Kv , DeltaResult} from "../../src/bucket/delta";
+
+import { expect, use as chai_use } from 'chai';
+chai_use( require( 'chai-as-promised' ) );
+
+interface SutTestCase<T>
+{
+ label: string;
+ src_data: T;
+ dest_data: T;
+ expected: DeltaResult<T>;
+}
+
+describe( 'Delta', () =>
+{
+ ( <SutTestCase<Kv<string>>[]>[
+ {
+ label: "No changes are made, key is dropped",
+ src_data: { foo: [ 'bar', 'baz' ] },
+ dest_data: { foo: [ 'bar', 'baz' ] },
+ expected: {},
+ },
+ {
+ label: "Only the unchanged key is dropped",
+ src_data: { foo: [ 'bar', 'baz' ], bar: [ 'qwe' ] },
+ dest_data: { foo: [ 'bar', 'baz' ], bar: [ 'asd' ] },
+ expected: { bar: [ 'asd' ] },
+ },
+ {
+ label: "Changed values are updated by index with old value",
+ src_data: { foo: [ "bar", "baz", "quux" ] },
+ dest_data: { foo: [ "bar", "quuux" ], moo: [ "cow" ] },
+ expected: { foo: [ undefined, "quuux", null ], moo: [ "cow" ] },
+ },
+ {
+ label: "The keys are null when they don't exist in first set",
+ src_data: {},
+ dest_data: { foo: [ "bar", "quuux" ], moo: [ "cow" ] },
+ expected: { foo: [ "bar", "quuux" ], moo: [ "cow" ] },
+ },
+ {
+ label: "Removed keys in new set show up",
+ src_data: { foo: [ "bar" ] },
+ dest_data: {},
+ expected: { foo: null },
+ },
+ {
+ label: "Indexes after a null terminator aren't included",
+ src_data: { foo: [ "one", "two", "three", "four" ] },
+ dest_data: { foo: [ "one", "done" ] },
+ expected: { foo: [ undefined, "done", null ] },
+ },
+ {
+ label: "Consider nested arrays to be scalar values",
+ src_data: { foo: [ [ "one" ], [ "two", "three" ] ] },
+ dest_data: { foo: [ [ "one" ], [ "two" ] ] },
+ expected: { foo: [ undefined, [ "two" ] ] },
+ },
+ {
+ label: "Don't evaluate zeros as falsy",
+ src_data: { foo: [ 0 ] },
+ dest_data: { foo: [ 0 ] },
+ expected: {},
+ },
+ {
+ label: "Don't evaluate empty strings as falsy",
+ src_data: { foo: [ '' ] },
+ dest_data: { foo: [ '' ] },
+ expected: {},
+ },
+ ] ).forEach( ( { label, src_data, dest_data, expected } ) =>
+ {
+ it( label, () =>
+ {
+ expect( sut( src_data, dest_data ) ).to.deep.equal( expected );
+ } );
+ } );
+} );