Migrate custom provider tests to instance fixtures

Migrate the next custom provider/model config tests to Effect-aware instance fixtures while keeping timing neutral and behavior unchanged.

packages/opencode/test/provider/provider.test.ts

@@ -228,13 +228,17 @@ it.instance(
   },
 )
 
-test("custom model alias via config", async () => {
+it.instance(
-  await using tmp = await tmpdir({
+  "custom model alias via config",
-    init: async (dir) => {
+  Effect.gen(function* () {
-      await Bun.write(
+    yield* setProcessEnv("ANTHROPIC_API_KEY", "test-api-key")
-        path.join(dir, "opencode.json"),
+    const providers = yield* Provider.Service.use((provider) => provider.list())
-        JSON.stringify({
+    expect(providers[ProviderID.anthropic]).toBeDefined()
-          $schema: "https://opencode.ai/config.json",
+    expect(providers[ProviderID.anthropic].models["my-alias"]).toBeDefined()
+    expect(providers[ProviderID.anthropic].models["my-alias"].name).toBe("My Custom Alias")
+  }),
+  {
+    config: {
       provider: {
         anthropic: {
           models: {
@@ -245,29 +249,20 @@ test("custom model alias via config", async () => {
           },
         },
       },
-        }),
-      )
     },
-  })
-  await withTestInstance({
-    directory: tmp.path,
-    fn: async (ctx) => {
-      await set(ctx, "ANTHROPIC_API_KEY", "test-api-key")
-      const providers = await list(ctx)
-      expect(providers[ProviderID.anthropic]).toBeDefined()
-      expect(providers[ProviderID.anthropic].models["my-alias"]).toBeDefined()
-      expect(providers[ProviderID.anthropic].models["my-alias"].name).toBe("My Custom Alias")
   },
-  })
+)
-})
 
-test("custom provider with npm package", async () => {
+it.instance(
-  await using tmp = await tmpdir({
+  "custom provider with npm package",
-    init: async (dir) => {
+  Effect.gen(function* () {
-      await Bun.write(
+    const providers = yield* Provider.Service.use((provider) => provider.list())
-        path.join(dir, "opencode.json"),
+    expect(providers[ProviderID.make("custom-provider")]).toBeDefined()
-        JSON.stringify({
+    expect(providers[ProviderID.make("custom-provider")].name).toBe("Custom Provider")
-          $schema: "https://opencode.ai/config.json",
+    expect(providers[ProviderID.make("custom-provider")].models["custom-model"]).toBeDefined()
+  }),
+  {
+    config: {
       provider: {
         "custom-provider": {
           name: "Custom Provider",
@@ -289,20 +284,9 @@ test("custom provider with npm package", async () => {
           },
         },
       },
-        }),
-      )
     },
-  })
-  await withTestInstance({
-    directory: tmp.path,
-    fn: async (ctx) => {
-      const providers = await list(ctx)
-      expect(providers[ProviderID.make("custom-provider")]).toBeDefined()
-      expect(providers[ProviderID.make("custom-provider")].name).toBe("Custom Provider")
-      expect(providers[ProviderID.make("custom-provider")].models["custom-model"]).toBeDefined()
   },
-  })
+)
-})
 
 it.instance(
   "filters alpha provider models by default",
@@ -324,13 +308,20 @@ experimentalModels.instance(
   { config: alphaProviderConfig },
 )
 
-test("custom DeepSeek openai-compatible model defaults interleaved reasoning field", async () => {
+it.instance(
-  await using tmp = await tmpdir({
+  "custom DeepSeek openai-compatible model defaults interleaved reasoning field",
-    init: async (dir) => {
+  Effect.gen(function* () {
-      await Bun.write(
+    const providers = yield* Provider.Service.use((provider) => provider.list())
-        path.join(dir, "opencode.json"),
+    const provider = providers[ProviderID.make("custom-provider")]
-        JSON.stringify({
+    expect(provider.models["deepseek-r1"].capabilities.interleaved).toEqual({ field: "reasoning_content" })
-          $schema: "https://opencode.ai/config.json",
+    expect(provider.models["deepseek-details"].capabilities.interleaved).toEqual({ field: "reasoning_details" })
+    expect(provider.models["custom-model"].capabilities.interleaved).toBe(false)
+    expect(providers[ProviderID.make("custom-anthropic-provider")].models["deepseek-r1"].capabilities.interleaved).toBe(
+      false,
+    )
+  }),
+  {
+    config: {
       provider: {
         "custom-provider": {
           name: "Custom Provider",
@@ -366,24 +357,9 @@ test("custom DeepSeek openai-compatible model defaults interleaved reasoning fie
           },
         },
       },
-        }),
-      )
     },
-  })
-  await withTestInstance({
-    directory: tmp.path,
-    fn: async (ctx) => {
-      const providers = await list(ctx)
-      const provider = providers[ProviderID.make("custom-provider")]
-      expect(provider.models["deepseek-r1"].capabilities.interleaved).toEqual({ field: "reasoning_content" })
-      expect(provider.models["deepseek-details"].capabilities.interleaved).toEqual({ field: "reasoning_details" })
-      expect(provider.models["custom-model"].capabilities.interleaved).toBe(false)
-      expect(
-        providers[ProviderID.make("custom-anthropic-provider")].models["deepseek-r1"].capabilities.interleaved,
-      ).toBe(false)
   },
-  })
+)
-})
 
 test("env variable takes precedence, config merges options", async () => {
   await using tmp = await tmpdir({

perf/test-suite.md

@@ -69,6 +69,7 @@ Repeated setup work, long sleeps/timeouts, serial integration tests, filesystem/
 | HTTP listen PTY ticket tests restart the same listener topology twice                                     | Folded directory-scoped ticket regression into the broader unsafe-ticket test                  | 7.051s    | 6.170s  | keep     | Two targeted reruns passed after the change: 6.76s, 6.17s; still covers mint failure and successful same-directory upgrade. |
 | File watcher readiness can write before async native subscriptions are active                             | Retried short readiness writes and accepted symlink-realpath HEAD events                       | failed    | 4.62s   | keep     | Three sequential focused watcher runs passed: 4.62s, 4.57s, 4.64s; full suite no longer failed in `watcher.test.ts`.        |
 | First provider config/env/filtering block can use Effect-aware instance fixtures                          | Migrated six `tmpdir` + `withTestInstance` cases to `it.instance`                              | 6.06s     | 6.07s   | keep     | Neutral timing, but removes manual config file writes and instance plumbing; use as the pattern for later provider slices.  |
+| Custom provider/model config cases can use Effect-aware instance fixtures                                 | Migrated three more config-heavy provider cases to `it.instance`                               | 6.07s     | 6.12s   | keep     | Neutral timing within noise, but continues removing manual config file writes on top of the first provider fixture PR.      |
 
 ## Profiling Results