Fixes Tailwind setup in client tests (#1766)

waspc/src/Wasp/Generator/SdkGenerator.hs

@@ -28,6 +28,7 @@ import qualified Wasp.AppSpec.ExternalFiles as EC
 import Wasp.AppSpec.Valid (getLowestNodeVersionUserAllows, isAuthEnabled)
 import qualified Wasp.AppSpec.Valid as AS.Valid
 import Wasp.Generator.Common (ProjectRootDir, makeJsonWithEntityData, prismaVersion)
+import qualified Wasp.Generator.ConfigFile as G.CF
 import Wasp.Generator.DbGenerator (getEntitiesForPrismaSchema)
 import qualified Wasp.Generator.DbGenerator.Auth as DbAuth
 import Wasp.Generator.FileDraft (FileDraft)
@@ -225,7 +226,11 @@ npmDepsForSdk spec =
           ++ depsRequiredByEmail spec
           ++ depsRequiredByWebSockets spec
           ++ depsRequiredForTesting
-          ++ depsRequiredByJobs spec,
+          ++ depsRequiredByJobs spec
+          -- These deps need to be installed in the SDK becasue when we run client tests,
+          -- we are running them from the project root dir and PostCSS and Tailwind
+          -- can't be resolved from WebApp node_modules, so we need to install them in the SDK.
+          ++ depsRequiredByTailwind spec,
       N.devDependencies =
         AS.Dependency.fromList
           [ ("@tsconfig/node" <> majorNodeVersionStr, "latest")
@@ -276,6 +281,17 @@ depsRequiredForAuth spec =
   where
     versionRange = SV.Range [SV.backwardsCompatibleWith (SV.Version 1 2 8)]
 
+depsRequiredByTailwind :: AppSpec -> [AS.Dependency.Dependency]
+depsRequiredByTailwind spec =
+  if G.CF.isTailwindUsed spec
+    then
+      AS.Dependency.fromList
+        [ ("tailwindcss", "^3.2.7"),
+          ("postcss", "^8.4.21"),
+          ("autoprefixer", "^10.4.13")
+        ]
+    else []
+
 -- TODO(filip): Figure out where this belongs. Check https://github.com/wasp-lang/wasp/pull/1602#discussion_r1437144166 .
 -- Also, fix imports for wasp project.
 installNpmDependencies :: Path' Abs (Dir WaspProjectDir) -> J.Job

waspc/src/Wasp/Generator/WebAppGenerator.hs

@@ -36,7 +36,6 @@ import Wasp.Generator.Common
   ( makeJsArrayFromHaskellList,
     makeJsonWithEntityData,
   )
-import qualified Wasp.Generator.ConfigFile as G.CF
 import qualified Wasp.Generator.DbGenerator.Auth as DbAuth
 import Wasp.Generator.FileDraft (FileDraft, createTextFileDraft)
 import qualified Wasp.Generator.FileDraft as FD
@@ -120,7 +119,7 @@ genNpmrc =
       Nothing
 
 npmDepsForWasp :: AppSpec -> N.NpmDepsForWasp
-npmDepsForWasp spec =
+npmDepsForWasp _spec =
   N.NpmDepsForWasp
     { N.waspDependencies =
         AS.Dependency.fromList
@@ -133,8 +132,7 @@ npmDepsForWasp spec =
             ("mitt", "3.0.0"),
             -- Used for Auth UI
             ("react-hook-form", "^7.45.4")
-          ]
-          ++ depsRequiredByTailwind spec,
+          ],
       N.waspDevDependencies =
         AS.Dependency.fromList
           [ -- TODO: Allow users to choose whether they want to use TypeScript
@@ -151,17 +149,6 @@ npmDepsForWasp spec =
           ]
     }
 
-depsRequiredByTailwind :: AppSpec -> [AS.Dependency.Dependency]
-depsRequiredByTailwind spec =
-  if G.CF.isTailwindUsed spec
-    then
-      AS.Dependency.fromList
-        [ ("tailwindcss", "^3.2.7"),
-          ("postcss", "^8.4.21"),
-          ("autoprefixer", "^10.4.13")
-        ]
-    else []
-
 genGitignore :: Generator FileDraft
 genGitignore =
   return $