Turn TraitsCachingIssueIntegrationTest into a e2e test

Author: staabm

.github/workflows/e2e-tests.yml

@@ -184,6 +184,36 @@ jobs:
           - script: |
               cd e2e/env-int-key
               env 1=1 ../../bin/phpstan analyse test.php
+          - script: |
+              cd e2e/trait-caching
+              ../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/
+              ../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/
+          - script: |
+              cd e2e/trait-caching
+              ../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/
+              patch -b data/TraitOne.php < TraitOne.patch
+              OUTPUT=$(../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/ || true)
+              echo "$OUTPUT"
+              [ $(echo "$OUTPUT" | wc -l) -eq 1 ]
+              grep 'Method TraitsCachingIssue\\TestClassUsingTrait::doBar() should return stdClass but returns Exception.' <<< "$OUTPUT"
+          - script: |
+              cd e2e/trait-caching
+              ../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/
+              patch -b data/TraitTwo.php < TraitTwo.patch
+              OUTPUT=$(../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/ || true)
+              echo "$OUTPUT"
+              [ $(echo "$OUTPUT" | wc -l) -eq 1 ]
+              grep 'Method class@anonymous/TestClassUsingTrait.php:20::doBar() should return stdClass but returns Exception.' <<< "$OUTPUT"
+          - script: |
+              cd e2e/trait-caching
+              ../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/
+              patch -b data/TraitOne.php < TraitOne.patch
+              patch -b data/TraitTwo.php < TraitTwo.patch
+              OUTPUT=$(../../bin/phpstan analyze --no-progress --level 8 --error-format raw data/ || true)
+              echo "$OUTPUT"
+              [ $(echo "$OUTPUT" | wc -l) -eq 2 ]
+              grep 'Method TraitsCachingIssue\\TestClassUsingTrait::doBar() should return stdClass but returns Exception.' <<< "$OUTPUT"
+              grep 'Method class@anonymous/TestClassUsingTrait.php:20::doBar() should return stdClass but returns Exception.' <<< "$OUTPUT"
 
     steps:
       - name: "Checkout"

e2e/trait-caching/TraitOne.patch

@@ -0,0 +1,13 @@
+diff --git a/e2e/trait-caching/data/TraitOne.php b/e2e/trait-caching/data/TraitOne.php
+index 395dc1333a..1641ad6e65 100644
+--- a/e2e/trait-caching/data/TraitOne.php
++++ b/e2e/trait-caching/data/TraitOne.php
+@@ -2,7 +2,7 @@
+ 
+ namespace TraitsCachingIssue;
+ 
+-use stdClass as Foo;
++use Exception as Foo;
+ 
+ trait TraitOne
+ {

e2e/trait-caching/TraitTwo.patch

@@ -0,0 +1,13 @@
+diff --git a/e2e/trait-caching/data/TraitTwo.php b/e2e/trait-caching/data/TraitTwo.php
+index 1b9827b727..4089407f13 100644
+--- a/e2e/trait-caching/data/TraitTwo.php
++++ b/e2e/trait-caching/data/TraitTwo.php
+@@ -2,7 +2,7 @@
+ 
+ namespace TraitsCachingIssue;
+ 
+-use stdClass as Foo;
++use Exception as Foo;
+ 
+ trait TraitTwo
+ {