test(11.1-06): plant one fixture per docs checker rule and run them in the gate

- testdata/clean passes every check; 63 violation cases each overlay one
  fault and a want.txt naming the single problem it must produce
- TestPlantedViolations also plants the forbidden name (split literals)
  and symlink escapes at run time; TestBuildOutputGuard covers --out
- check-phase11.1.sh --self-test runs the corpus through a go test -json
  detector that refuses FAIL, SKIP, zero tests and no tests to run
- the self-test scratch copy now carries examples/ and README.md, so its
  baseline sees the example command literals the real tree sees

internal/docsite/testdata/violations/anchor-cross-page/docs/guide/start.md

@@ -0,0 +1,34 @@
+---
+title: Start
+description: "Install the demo and greet someone."
+section: guide
+order: 10
+---
+# Start
+
+The demo module greets people.
+
+## Install
+
+Build the docs with `summer docs:build`, or run the application:
+
+```sh
+$ summer docs:build --out site
+./bin/demo serve --addr 127.0.0.1:8080
+```
+
+## Greet someone
+
+Call `demo.Hello`:
+
+```go src=modules/demo/example_test.go#ExampleHello
+fmt.Println(demo.Hello("blog"))
+// Output: Hello, blog
+```
+
+> [!TIP]
+> The [demo reference](../../modules/demo/README.md#usage) lists the whole API.
+
+Continue with [configuration](config.md) or jump back to [install](#install).
+
+See [usage](../extras/usage.md#nope).

internal/docsite/testdata/violations/anchor-cross-page/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/guide/start.md
+message: #nope not found in docs/extras/usage.md

internal/docsite/testdata/violations/anchor-missing/docs/guide/start.md

@@ -0,0 +1,34 @@
+---
+title: Start
+description: "Install the demo and greet someone."
+section: guide
+order: 10
+---
+# Start
+
+The demo module greets people.
+
+## Install
+
+Build the docs with `summer docs:build`, or run the application:
+
+```sh
+$ summer docs:build --out site
+./bin/demo serve --addr 127.0.0.1:8080
+```
+
+## Greet someone
+
+Call `demo.Hello`:
+
+```go src=modules/demo/example_test.go#ExampleHello
+fmt.Println(demo.Hello("blog"))
+// Output: Hello, blog
+```
+
+> [!TIP]
+> The [demo reference](../../modules/demo/README.md#usage) lists the whole API.
+
+Continue with [configuration](config.md) or jump back to [install](#install).
+
+Back to [nowhere](#nope).

internal/docsite/testdata/violations/anchor-missing/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/guide/start.md
+message: #nope not found in docs/guide/start.md

internal/docsite/testdata/violations/callout-unknown-readme/modules/demo/README.md

@@ -0,0 +1,22 @@
+# demo
+
+Demo greets people by name.
+
+```go
+import "example.com/docfixture/modules/demo"
+```
+
+## Usage
+
+Call `demo.Hello` or build a `demo.Greeter` and call `demo.Greeter.Greet`.
+
+See the [start guide](../../docs/guide/start.md#install).
+
+## Testing
+
+```sh
+go test ./modules/demo
+```
+
+> [!CAUTION]
+> Planted.

internal/docsite/testdata/violations/callout-unknown-readme/want.txt

@@ -0,0 +1,3 @@
+rule: callout
+file: modules/demo/README.md
+message: unknown type CAUTION

internal/docsite/testdata/violations/callout-unknown/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+> [!DANGER]
+> Planted.

internal/docsite/testdata/violations/callout-unknown/want.txt

@@ -0,0 +1,3 @@
+rule: callout
+file: docs/extras/faq.md
+message: unknown type DANGER (use NOTE, TIP or WARNING)

internal/docsite/testdata/violations/command-app-name-as-tool/docs/extras/faq.md

@@ -0,0 +1,19 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```bash
+cd app && summer serve
+```

internal/docsite/testdata/violations/command-app-name-as-tool/want.txt

@@ -0,0 +1,3 @@
+rule: command
+file: docs/extras/faq.md
+message: "serve" is not a summer or application command

internal/docsite/testdata/violations/command-in-readme/modules/demo/README.md

@@ -0,0 +1,19 @@
+# demo
+
+Demo greets people by name.
+
+```go
+import "example.com/docfixture/modules/demo"
+```
+
+## Usage
+
+Call `demo.Hello` or build a `demo.Greeter` and call `demo.Greeter.Greet`.
+
+See the [start guide](../../docs/guide/start.md#install).
+
+## Testing
+
+```sh
+./bin/demo demo:nope
+```

internal/docsite/testdata/violations/command-in-readme/want.txt

@@ -0,0 +1,3 @@
+rule: command
+file: modules/demo/README.md
+message: "demo:nope" is not a summer or application command

internal/docsite/testdata/violations/command-unknown-app/docs/extras/faq.md

@@ -0,0 +1,19 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```sh
+./bin/demo no:such --force
+```

internal/docsite/testdata/violations/command-unknown-app/want.txt

@@ -0,0 +1,3 @@
+rule: command
+file: docs/extras/faq.md
+message: "no:such" is not a summer or application command

internal/docsite/testdata/violations/command-unknown-summer/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+Then run `summer no:such`.

internal/docsite/testdata/violations/command-unknown-summer/want.txt

@@ -0,0 +1,3 @@
+rule: command
+file: docs/extras/faq.md
+message: "no:such" is not a summer or application command

internal/docsite/testdata/violations/frontmatter-api-section/docs/api/extra.md

@@ -0,0 +1,9 @@
+---
+title: Extra
+description: "Extra page."
+section: api
+order: 90
+---
+# Extra
+
+Text.

internal/docsite/testdata/violations/frontmatter-api-section/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/api/extra.md
+message: section "api" is reserved for the ingested module READMEs

internal/docsite/testdata/violations/frontmatter-decode-error/docs/extras/faq.md

@@ -0,0 +1,15 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: twenty
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```

internal/docsite/testdata/violations/frontmatter-decode-error/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/extras/faq.md
+message: cannot unmarshal string into Go struct field Frontmatter.Order

internal/docsite/testdata/violations/frontmatter-duplicate-order/docs/guide/config.md

@@ -0,0 +1,20 @@
+---
+title: Config
+description: "Configure the demo database."
+section: guide
+order: 10
+---
+# Config
+
+The database block of `config/app.yaml`:
+
+```yaml src=config/app.yaml#db
+db:
+  host: localhost
+  port: 5432
+```
+
+## Settings
+
+> [!WARNING]
+> Keep the port in step with the database server.

internal/docsite/testdata/violations/frontmatter-duplicate-order/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/guide/start.md
+message: order 10 already used by docs/guide/config.md

internal/docsite/testdata/violations/frontmatter-first-line/docs/guide/config.md

@@ -0,0 +1,20 @@
+---
+title: Config
+description: "Configure the demo database."
+section: guide
+order: 20
+---
+# Configuration
+
+The database block of `config/app.yaml`:
+
+```yaml src=config/app.yaml#db
+db:
+  host: localhost
+  port: 5432
+```
+
+## Settings
+
+> [!WARNING]
+> Keep the port in step with the database server.

internal/docsite/testdata/violations/frontmatter-first-line/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/guide/config.md
+message: first line must be "# Config"

internal/docsite/testdata/violations/frontmatter-index-section/docs/index.md

@@ -0,0 +1,12 @@
+---
+title: Demo docs
+description: "The landing page of the clean fixture."
+section: guide
+order: 0
+---
+# Demo docs
+
+Start with the [start guide](guide/start.md), then read [usage](extras/usage.md#call-it).
+
+> [!NOTE]
+> Every page of this fixture passes every check.

internal/docsite/testdata/violations/frontmatter-index-section/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/index.md
+message: the landing page uses section "index"

internal/docsite/testdata/violations/frontmatter-long-description/docs/guide/config.md

@@ -0,0 +1,20 @@
+---
+title: Config
+description: "Configure the demo database. Configure the demo database. Configure the demo database. Configure the demo database. Configure the demo database. Configure the demo database. "
+section: guide
+order: 20
+---
+# Config
+
+The database block of `config/app.yaml`:
+
+```yaml src=config/app.yaml#db
+db:
+  host: localhost
+  port: 5432
+```
+
+## Settings
+
+> [!WARNING]
+> Keep the port in step with the database server.

internal/docsite/testdata/violations/frontmatter-long-description/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/guide/config.md
+message: description is longer than 160 characters

internal/docsite/testdata/violations/frontmatter-missing-field/docs/extras/faq.md

@@ -0,0 +1,14 @@
+---
+title: FAQ
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```

internal/docsite/testdata/violations/frontmatter-missing-field/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/extras/faq.md
+message: missing field "description"

internal/docsite/testdata/violations/frontmatter-no-block/docs/extras/faq.md

@@ -0,0 +1,14 @@
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```

internal/docsite/testdata/violations/frontmatter-no-block/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/extras/faq.md
+message: the file must start with a "---" frontmatter block

internal/docsite/testdata/violations/frontmatter-root-page/docs/stray.md

@@ -0,0 +1,9 @@
+---
+title: Stray
+description: "Stray page."
+section: guide
+order: 90
+---
+# Stray
+
+Text.

internal/docsite/testdata/violations/frontmatter-root-page/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/stray.md
+message: only index.md sits at the docs root

internal/docsite/testdata/violations/frontmatter-section-mismatch/docs/guide/config.md

@@ -0,0 +1,20 @@
+---
+title: Config
+description: "Configure the demo database."
+section: extras
+order: 30
+---
+# Config
+
+The database block of `config/app.yaml`:
+
+```yaml src=config/app.yaml#db
+db:
+  host: localhost
+  port: 5432
+```
+
+## Settings
+
+> [!WARNING]
+> Keep the port in step with the database server.

internal/docsite/testdata/violations/frontmatter-section-mismatch/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/guide/config.md
+message: section "extras" does not match directory "guide"

internal/docsite/testdata/violations/frontmatter-unclosed-block/docs/extras/draft.md

@@ -0,0 +1,6 @@
+---
+title: Draft
+description: x
+section: extras
+order: 90
+# Draft

internal/docsite/testdata/violations/frontmatter-unclosed-block/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/extras/draft.md
+message: the file must start with a "---" frontmatter block

internal/docsite/testdata/violations/frontmatter-unknown-field/docs/extras/faq.md

@@ -0,0 +1,16 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+colour: red
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```

internal/docsite/testdata/violations/frontmatter-unknown-field/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/extras/faq.md
+message: unknown field "colour"

internal/docsite/testdata/violations/frontmatter-unlisted-section/docs/other/extra.md

@@ -0,0 +1,9 @@
+---
+title: Extra
+description: "Extra page."
+section: other
+order: 90
+---
+# Extra
+
+Text.

internal/docsite/testdata/violations/frontmatter-unlisted-section/want.txt

@@ -0,0 +1,3 @@
+rule: frontmatter
+file: docs/other/extra.md
+message: section "other" is not listed in docs/site.yaml

internal/docsite/testdata/violations/go-fence-no-src/docs/extras/faq.md

@@ -0,0 +1,19 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```go
+x := 1
+```

internal/docsite/testdata/violations/go-fence-no-src/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: go code block has no src= reference

internal/docsite/testdata/violations/heading-autolink/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+## Visit <https://example.com>

internal/docsite/testdata/violations/heading-autolink/want.txt

@@ -0,0 +1,3 @@
+rule: heading
+file: docs/extras/faq.md
+message: headings must be plain ASCII text without links or code

internal/docsite/testdata/violations/heading-code/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+## Use `demo.Hello`

internal/docsite/testdata/violations/heading-code/want.txt

@@ -0,0 +1,3 @@
+rule: heading
+file: docs/extras/faq.md
+message: headings must be plain ASCII text without links or code

internal/docsite/testdata/violations/heading-link/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+## See [usage](usage.md)

internal/docsite/testdata/violations/heading-link/want.txt

@@ -0,0 +1,3 @@
+rule: heading
+file: docs/extras/faq.md
+message: headings must be plain ASCII text without links or code

internal/docsite/testdata/violations/heading-non-ascii/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+## Zażółć gęślą

internal/docsite/testdata/violations/heading-non-ascii/want.txt

@@ -0,0 +1,3 @@
+rule: heading
+file: docs/extras/faq.md
+message: headings must be plain ASCII text without links or code

internal/docsite/testdata/violations/identifier-ambiguous-package/modules/demo/util/util.go

@@ -0,0 +1 @@
+package util

internal/docsite/testdata/violations/identifier-ambiguous-package/modules/other/util/util.go

@@ -0,0 +1 @@
+package util

internal/docsite/testdata/violations/identifier-ambiguous-package/want.txt

@@ -0,0 +1,3 @@
+rule: identifier
+file: modules/other/util
+message: package name "util" is used by modules/demo/util and modules/other/util

internal/docsite/testdata/violations/identifier-module-readme/modules/demo/README.md

@@ -0,0 +1,19 @@
+# demo
+
+Demo greets people by name.
+
+```go
+import "example.com/docfixture/modules/demo"
+```
+
+## Usage
+
+Call `demo.Gone` or build a `demo.Greeter` and call `demo.Greeter.Greet`.
+
+See the [start guide](../../docs/guide/start.md#install).
+
+## Testing
+
+```sh
+go test ./modules/demo
+```

internal/docsite/testdata/violations/identifier-module-readme/want.txt

@@ -0,0 +1,3 @@
+rule: identifier
+file: modules/demo/README.md
+message: demo.Gone does not exist in modules/demo

internal/docsite/testdata/violations/identifier-root-readme/README.md

@@ -0,0 +1,3 @@
+# Docs fixture
+
+The clean fixture for the docs checkers. `demo.Bye` is checked here too.

internal/docsite/testdata/violations/identifier-root-readme/want.txt

@@ -0,0 +1,3 @@
+rule: identifier
+file: README.md
+message: demo.Bye does not exist in modules/demo

internal/docsite/testdata/violations/identifier-unknown-member/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See `demo.Greeter.Nope`.

internal/docsite/testdata/violations/identifier-unknown-member/want.txt

@@ -0,0 +1,3 @@
+rule: identifier
+file: docs/extras/faq.md
+message: demo.Greeter.Nope does not exist in modules/demo

internal/docsite/testdata/violations/identifier-unknown/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See `demo.Missing`.

internal/docsite/testdata/violations/identifier-unknown/want.txt

@@ -0,0 +1,3 @@
+rule: identifier
+file: docs/extras/faq.md
+message: demo.Missing does not exist in modules/demo

internal/docsite/testdata/violations/link-absolute/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See [root](/index.html).

internal/docsite/testdata/violations/link-absolute/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/extras/faq.md
+message: /index.html does not resolve

internal/docsite/testdata/violations/link-broken/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See [missing](missing.md).

internal/docsite/testdata/violations/link-broken/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/extras/faq.md
+message: missing.md does not resolve

internal/docsite/testdata/violations/link-empty/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See [nothing]().

internal/docsite/testdata/violations/link-empty/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/extras/faq.md
+message: empty link destination does not resolve

internal/docsite/testdata/violations/link-module-readme/modules/demo/README.md

@@ -0,0 +1,19 @@
+# demo
+
+Demo greets people by name.
+
+```go
+import "example.com/docfixture/modules/demo"
+```
+
+## Usage
+
+Call `demo.Hello` or build a `demo.Greeter` and call `demo.Greeter.Greet`.
+
+See the [start guide](../../docs/guide/nope.md).
+
+## Testing
+
+```sh
+go test ./modules/demo
+```

internal/docsite/testdata/violations/link-module-readme/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: modules/demo/README.md
+message: ../../docs/guide/nope.md does not resolve

internal/docsite/testdata/violations/link-source-file/docs/extras/faq.md

@@ -0,0 +1,17 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+See [source](../../modules/demo/demo.go).

internal/docsite/testdata/violations/link-source-file/want.txt

@@ -0,0 +1,3 @@
+rule: link
+file: docs/extras/faq.md
+message: ../../modules/demo/demo.go does not resolve

internal/docsite/testdata/violations/page-missing-index/remove.txt

@@ -0,0 +1 @@
+docs/index.md

internal/docsite/testdata/violations/page-missing-index/want.txt

@@ -0,0 +1,3 @@
+rule: page
+file: docs/index.md
+message: the landing page is missing

internal/docsite/testdata/violations/readme-missing/modules/extra/extra.go

@@ -0,0 +1,2 @@
+// Package extra has no README.
+package extra

internal/docsite/testdata/violations/readme-missing/want.txt

@@ -0,0 +1,3 @@
+rule: readme
+file: modules/extra
+message: package has Go files but no README.md

internal/docsite/testdata/violations/readme-no-title/modules/extra/README.md

@@ -0,0 +1,3 @@
+extra
+
+No H1 title.

internal/docsite/testdata/violations/readme-no-title/modules/extra/extra.go

@@ -0,0 +1,2 @@
+// Package extra has a bad README.
+package extra

internal/docsite/testdata/violations/readme-no-title/want.txt

@@ -0,0 +1,3 @@
+rule: readme
+file: modules/extra/README.md
+message: first line must be the "# <module>" title

internal/docsite/testdata/violations/section-no-pages/docs/site.yaml

@@ -0,0 +1,16 @@
+title: Demo
+description: "Demo is the clean docs checker fixture."
+base_url: ""
+edit_url: "https://forge.example/edit/{path}"
+source_url: "https://forge.example/src/{path}"
+llms_notes:
+  - "Every page of this fixture passes every check."
+sections:
+  - name: guide
+    title: Guide
+  - name: extras
+    title: Extras
+  - name: empty
+    title: Empty
+  - name: api
+    title: API reference

internal/docsite/testdata/violations/section-no-pages/want.txt

@@ -0,0 +1,3 @@
+rule: section
+file: docs/site.yaml
+message: "empty" has no pages

internal/docsite/testdata/violations/site-duplicate-section/docs/site.yaml

@@ -0,0 +1,16 @@
+title: Demo
+description: "Demo is the clean docs checker fixture."
+base_url: ""
+edit_url: "https://forge.example/edit/{path}"
+source_url: "https://forge.example/src/{path}"
+llms_notes:
+  - "Every page of this fixture passes every check."
+sections:
+  - name: guide
+    title: Guide
+  - name: extras
+    title: Extras
+  - name: guide
+    title: Again
+  - name: api
+    title: API reference

internal/docsite/testdata/violations/site-duplicate-section/want.txt

@@ -0,0 +1,3 @@
+rule: site
+file: docs/site.yaml
+message: section "guide" is listed twice

internal/docsite/testdata/violations/site-unknown-key/docs/site.yaml

@@ -0,0 +1,15 @@
+title: Demo
+description: "Demo is the clean docs checker fixture."
+colour: red
+base_url: ""
+edit_url: "https://forge.example/edit/{path}"
+source_url: "https://forge.example/src/{path}"
+llms_notes:
+  - "Every page of this fixture passes every check."
+sections:
+  - name: guide
+    title: Guide
+  - name: extras
+    title: Extras
+  - name: api
+    title: API reference

internal/docsite/testdata/violations/site-unknown-key/want.txt

@@ -0,0 +1,3 @@
+rule: site
+file: docs/site.yaml
+message: parse site config

internal/docsite/testdata/violations/snippet-absolute-path/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=/etc/hostname
+```

internal/docsite/testdata/violations/snippet-absolute-path/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: path must be relative to the repository root

internal/docsite/testdata/violations/snippet-backslash/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=config\app.yaml
+```

internal/docsite/testdata/violations/snippet-backslash/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: path must use forward slashes

internal/docsite/testdata/violations/snippet-directory/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=config
+```

internal/docsite/testdata/violations/snippet-directory/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: path is a directory

internal/docsite/testdata/violations/snippet-dotdot/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=../outside.txt
+```

internal/docsite/testdata/violations/snippet-dotdot/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: path must not leave the repository root

internal/docsite/testdata/violations/snippet-dotfile/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=.env
+```

internal/docsite/testdata/violations/snippet-dotfile/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/extras/faq.md
+message: path names a dotfile or .env file

internal/docsite/testdata/violations/snippet-drift/docs/guide/start.md

@@ -0,0 +1,32 @@
+---
+title: Start
+description: "Install the demo and greet someone."
+section: guide
+order: 10
+---
+# Start
+
+The demo module greets people.
+
+## Install
+
+Build the docs with `summer docs:build`, or run the application:
+
+```sh
+$ summer docs:build --out site
+./bin/demo serve --addr 127.0.0.1:8080
+```
+
+## Greet someone
+
+Call `demo.Hello`:
+
+```go src=modules/demo/example_test.go#ExampleHello
+fmt.Println(demo.Hello("docs"))
+// Output: Hello, blog
+```
+
+> [!TIP]
+> The [demo reference](../../modules/demo/README.md#usage) lists the whole API.
+
+Continue with [configuration](config.md) or jump back to [install](#install).

internal/docsite/testdata/violations/snippet-drift/want.txt

@@ -0,0 +1,3 @@
+rule: snippet
+file: docs/guide/start.md
+message: body differs from modules/demo/example_test.go#ExampleHello (run: summer docs:sync)

internal/docsite/testdata/violations/snippet-env-file/config/prod.env

@@ -0,0 +1 @@
+SECRET=1

internal/docsite/testdata/violations/snippet-env-file/docs/extras/faq.md

@@ -0,0 +1,18 @@
+---
+title: FAQ
+description: "Questions about the demo."
+section: extras
+order: 20
+---
+# FAQ
+
+## Does it migrate
+
+Yes, run `./bin/demo migrate`, then `summer docs:sync` after a source change.
+
+```text
+summer not:checked in a text fence
+```
+
+```text src=config/prod.env
+```