Set up full input testing (#150)

* Extract main loop to something testable

* Revert "Extract main loop to something testable"

This reverts commit 35a78459698fe267933c554283212c2d06ed4bf0.

* Extract code that interacts with Google Play
We can now test our input flow as a whole

* Create some basic tests for `completed` status publishing

* Fix applying inputs
We don't want to be keeping values between runs

* Drop some redundant tests

* Create basic tests for draft rollout

* Run build

* Fix userFraction bug

* Improve readability of initialising inputs

* Fix runUpload mocking

* Migrate to github-action-ts-run-api

__tests__/main.test.ts

@@ -0,0 +1,98 @@
+import {RunOptions, RunTarget} from 'github-action-ts-run-api';
+
+const target = RunTarget.mainJs('action.yml');
+
+async function expectRunInitiatesUpload(options: RunOptions) {
+    const result = await target.run(options)
+    expect(result.commands.errors.length).toBe(1)
+    expect(result.commands.errors).toContainEqual("The incoming JSON object does not contain a client_email field")
+}
+
+test("correct inputs for complete rollout", async () => {
+    // Run with the bare minimum
+    const minimumOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            track: "production",
+            status: "completed",
+        })
+    await expectRunInitiatesUpload(minimumOptions)
+
+    // Test with optional extras
+    const extraOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            releaseName: "Release name",
+            track: "production",
+            inAppUpdatePriority: "3",
+            status: "completed",
+            whatsNewDir: "./__tests__/whatsnew",
+            changesNotSentForReview: "true",
+            existingEditId: "123"
+        })
+        await expectRunInitiatesUpload(extraOptions)
+    })
+
+test("correct inputs for inProgress rollout", async () => {
+    // Run with the bare minimum
+    const minimumOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            track: "production",
+            userFraction: "0.99",
+            status: "inProgress",
+        })
+        await expectRunInitiatesUpload(minimumOptions)
+
+    // Test with optional extras
+    const extraOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            releaseName: "Release name",
+            track: "production",
+            inAppUpdatePriority: "3",
+            userFraction: "0.5",
+            status: "inProgress",
+            whatsNewDir: "./__tests__/whatsnew",
+            changesNotSentForReview: "true",
+            existingEditId: "123"
+        })
+        await expectRunInitiatesUpload(extraOptions)
+})
+
+test("correct inputs for draft rollout", async () => {
+    // Run with the bare minimum
+    const minimumOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            track: "production",
+            status: "draft",
+        })
+        await expectRunInitiatesUpload(minimumOptions)
+
+    // Test with optional extras
+    const extraOptions = RunOptions.create()
+        .setInputs({
+            serviceAccountJsonPlainText: "{}",
+            packageName: "com.package.name",
+            releaseFiles: "./__tests__/releasefiles/*.aab",
+            releaseName: "Release name",
+            track: "production",
+            inAppUpdatePriority: "3",
+            status: "draft",
+            whatsNewDir: "./__tests__/whatsnew",
+            changesNotSentForReview: "true",
+            existingEditId: "123"
+        })
+        await expectRunInitiatesUpload(extraOptions)
+    })