make Context static

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

__tests__/buildkit/buildkit.test.ts

@@ -18,7 +18,6 @@ import {beforeEach, describe, expect, it, jest, test} from '@jest/globals';
 
 import {BuildKit} from '../../src/buildkit/buildkit';
 import {Builder} from '../../src/buildx/builder';
-import {Context} from '../../src/context';
 
 import {BuilderInfo} from '../../src/types/builder';
 
@@ -47,13 +46,9 @@ jest.spyOn(Builder.prototype, 'inspect').mockImplementation(async (): Promise<Bu
 
 describe('getVersion', () => {
   it('valid', async () => {
-    const builder = new Builder({
-      context: new Context()
-    });
+    const builder = new Builder();
     const builderInfo = await builder.inspect('builder2');
-    const buildkit = new BuildKit({
-      context: new Context()
-    });
+    const buildkit = new BuildKit();
     const version = await buildkit.getVersion(builderInfo.nodes[0]);
     expect(version).toBe('v0.11.0');
   });
@@ -64,9 +59,7 @@ describe('satisfies', () => {
     ['builder2', '>=0.10.0', true],
     ['builder2', '>0.11.0', false]
   ])('given %p', async (builderName, range, expected) => {
-    const buildkit = new BuildKit({
-      context: new Context()
-    });
+    const buildkit = new BuildKit();
     expect(await buildkit.versionSatisfies(builderName, range)).toBe(expected);
   });
 });

__tests__/buildkit/config.test.ts

@@ -27,13 +27,14 @@ const fixturesDir = path.join(__dirname, '..', 'fixtures');
 const tmpDir = path.join(process.env.TEMP || '/tmp', 'buildkit-config-jest');
 const tmpName = path.join(tmpDir, '.tmpname-jest');
 
-jest.spyOn(Context.prototype, 'tmpDir').mockImplementation((): string => {
+jest.spyOn(Context, 'tmpDir').mockImplementation((): string => {
   if (!fs.existsSync(tmpDir)) {
     fs.mkdirSync(tmpDir, {recursive: true});
   }
   return tmpDir;
 });
-jest.spyOn(Context.prototype, 'tmpName').mockImplementation((): string => {
+
+jest.spyOn(Context, 'tmpName').mockImplementation((): string => {
   return tmpName;
 });
 
@@ -60,9 +61,7 @@ describe('resolve', () => {
     ]
   ])('given %p config', async (val, file, exValue, error: Error) => {
     try {
-      const buildkit = new BuildKit({
-        context: new Context()
-      });
+      const buildkit = new BuildKit();
       let config: string;
       if (file) {
         config = buildkit.config.resolveFromFile(val);