diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline1.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline1.yml
deleted file mode 100644
index c3876cbf02d36836148c7a86bff1bc5ffe72c695..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline1.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-steps:
-  - plugins:
-      abc/detect-clowns#v2.0.0: ~
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline2.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline2.yml
deleted file mode 100644
index 8f2a0c889803305400008d12b92f718abcf0c298..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline2.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-steps:
-  # Prebuild the app image, upload it to a registry for later steps
-  - name: "Docker Build"
-    plugins:
-      docker-compose#v1.3.2: # Comment at the end....
-        build: app
-        image-repository: index.docker.io/org/repo
-
-  - wait
-
-  # Use the app image built above to run concurrent tests
-  - name: "Docker Test %n"
-    command: test.sh
-    parallelism: 25
-    plugins:
-      docker-compose#v1.3.2:
-        run: app
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline3.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline3.yml
deleted file mode 100644
index fe34280996ec19a6ea42d5a3d975eee1273808ff..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline3.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-steps:
-  # Prebuild the app image, upload it to a registry for later steps
-  - name: "Docker Build"
-    plugins:
-      namespace/docker-compose#v1.3.2.5:
-        build: app
-        image-repository: index.docker.io/org/repo
-
-  - wait
-
-  - name: "wrong"
-    command: test.sh
-    parallelism: 25
-    plugins:
-      github.com/buildkite/plugin-docker-compose#v1.3.2:
-        run: app
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline4.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline4.yml
deleted file mode 100644
index 5399edbce33f0a80d4c69227ea22cb16879a6006..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline4.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-steps:
-  - plugins:
-      - docker-login#v2.0.1:
-          username: xyz
-      - docker-compose#v2.5.1:
-          build: app
-          image-repository: index.docker.io/myorg/myrepo
-  - wait
-  - command: test.sh
-    plugins:
-      - docker-login#v2.0.1:
-          username: xyz
-      - docker-compose#v2.5.1:
-          run: app
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline5.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline5.yml
deleted file mode 100644
index c8876504a0155302deed3f5349ad877dba052f17..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline5.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-steps:
-  - plugins:
-      - ssh://git@github.company.com/some-org/some-plugin#v3.2.7:
-          username: abc
-      - https://github.company.com/some-third-org/some-third-plugin#v0.0.1:
-          build: app
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline6.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline6.yml
deleted file mode 100644
index d5a14955c740cf16fedd2f1ee42c3cba1afe8a26..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline6.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-steps:
-  - plugins:
-      - ssh://git@github.company.com/some-org/some-plugin.git#v3.2.7:
-          username: abc
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline7.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline7.yml
deleted file mode 100644
index 45d64a26524ae41496f2a0fd2b3079f8477f0646..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline7.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-.docker-options: &some-options
-  propagate-environment: true
-  copy-checkout: true
-
-.python3-container: &python3-container
-  ssh://git@github.some-domain.com/some-org/some-plugin#v3.2.7:
-    some-config: some-value
-    <<: *some-options
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline8.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline8.yml
deleted file mode 100644
index a5d57559c62910144766d900207e86376f7c30a7..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline8.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-steps:
-  - plugins:
-      - ? ssh://git@github.company.com/some-org/some-plugin.git#v3.2.7
-        : enforce_peer_deps: false
diff --git a/lib/modules/manager/buildkite/__fixtures__/pipeline9.yml b/lib/modules/manager/buildkite/__fixtures__/pipeline9.yml
deleted file mode 100644
index 8baccb383c01c9374b08c3be07fca6d44ab02ad9..0000000000000000000000000000000000000000
--- a/lib/modules/manager/buildkite/__fixtures__/pipeline9.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-steps:
-  - plugins:
-      - ssh://git@bitbucket.org/some-org/some-plugin.git#v3.2.7:
-      - docker-compose#v1.3.2:
diff --git a/lib/modules/manager/buildkite/extract.spec.ts b/lib/modules/manager/buildkite/extract.spec.ts
index 1fbcc9f10592046897fcd2e422ccb99add17ae2c..812e02390fbbe41f2a6261ce2309b3dc3088e921 100644
--- a/lib/modules/manager/buildkite/extract.spec.ts
+++ b/lib/modules/manager/buildkite/extract.spec.ts
@@ -1,4 +1,4 @@
-import { Fixtures } from '../../../../test/fixtures';
+import { codeBlock } from 'common-tags';
 import type { PackageDependency } from '../types';
 import { extractPackageFile } from '.';
 
@@ -9,31 +9,95 @@ describe('modules/manager/buildkite/extract', () => {
     });
 
     it('extracts simple single plugin', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline1.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+          - plugins:
+              abc/detect-clowns#v2.0.0: ~
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(1);
     });
 
     it('extracts multiple plugins in same file', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline2.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+          # Prebuild the app image, upload it to a registry for later steps
+          - name: "Docker Build"
+            plugins:
+              docker-compose#v1.3.2: # Comment at the end....
+                build: app
+                image-repository: index.docker.io/org/repo
+
+          - wait
+
+          # Use the app image built above to run concurrent tests
+          - name: "Docker Test %n"
+            command: test.sh
+            parallelism: 25
+            plugins:
+              docker-compose#v1.3.2:
+                run: app
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(2);
     });
 
     it('adds skipReason', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline3.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+          - name: "Docker Build"
+            plugins:
+              namespace/docker-compose#v1.3.2.5:
+                build: app
+                image-repository: index.docker.io/org/repo
+
+          - wait
+
+          - name: "wrong"
+            command: test.sh
+            parallelism: 25
+            plugins:
+              github.com/buildkite/plugin-docker-compose#v1.3.2:
+                run: app
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(2);
     });
 
     it('extracts arrays of plugins', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline4.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+          - plugins:
+              - docker-login#v2.0.1:
+                  username: xyz
+              - docker-compose#v2.5.1:
+                  build: app
+                  image-repository: index.docker.io/myorg/myrepo
+          - wait
+          - command: test.sh
+            plugins:
+              - docker-login#v2.0.1:
+                  username: xyz
+              - docker-compose#v2.5.1:
+                  run: app
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(4);
     });
 
     it('extracts git-based plugins', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline5.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+              - ssh://git@github.company.com/some-org/some-plugin#v3.2.7:
+                  username: abc
+              - https://github.company.com/some-third-org/some-third-plugin#v0.0.1:
+                  build: app
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(2);
     });
@@ -45,13 +109,25 @@ describe('modules/manager/buildkite/extract', () => {
         depName: 'some-org/some-plugin',
         registryUrls: ['https://github.company.com'],
       };
-      const res = extractPackageFile(Fixtures.get('pipeline6.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+              - ssh://git@github.company.com/some-org/some-plugin.git#v3.2.7:
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       expect(res).toHaveLength(1);
       expect(res).toEqual([expectedPackageDependency]);
     });
 
     it('extracts plugins outside plugins sections', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline7.yml'))?.deps;
+      const fileContent = codeBlock`
+        .docker-options: &some-options
+          copy-checkout: true
+        .python3-container: &python3-container
+          ssh://git@github.some-domain.com/some-org/some-plugin#v3.2.7:
+            some-config: some-value
+            <<: *some-options
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       const expectedPackageDependency: PackageDependency = {
         currentValue: 'v3.2.7',
         datasource: 'github-tags',
@@ -62,7 +138,11 @@ describe('modules/manager/buildkite/extract', () => {
     });
 
     it('extracts plugin with preceding ?', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline8.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+              - ? ssh://git@github.company.com/some-org/some-plugin.git#v3.2.7
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       const expectedPackageDependency: PackageDependency = {
         currentValue: 'v3.2.7',
         datasource: 'github-tags',
@@ -73,7 +153,13 @@ describe('modules/manager/buildkite/extract', () => {
     });
 
     it('extracts plugin tags from bitbucket', () => {
-      const res = extractPackageFile(Fixtures.get('pipeline9.yml'))?.deps;
+      const fileContent = codeBlock`
+        steps:
+          - plugins:
+              - ssh://git@bitbucket.org/some-org/some-plugin.git#v3.2.7:
+              - docker-compose#v1.3.2:
+      `;
+      const res = extractPackageFile(fileContent)?.deps;
       const githubDependency: PackageDependency = {
         currentValue: 'v1.3.2',
         datasource: 'github-tags',