fix(tests): inline model_test fixtures after tests/models_fixtures removal

The previous reorg removed tests/models_fixtures/ but core/config/model_test.go
still read CONFIG_FILE/MODELS_PATH env vars pointing into that directory, so
`make test` failed with "open : no such file or directory" on the readConfigFile
spec (the suite ran with --fail-fast and bailed before openresponses_test).

Inline the YAMLs (config/embeddings/grpc/rwkv/whisper) directly into the test
file, materialise them into a per-test tmpdir via BeforeEach, and drop the
env-var lookups. The test no longer depends on Makefile plumbing.

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: claude-code:claude-opus-4-7 [Edit] [Write] [Bash]

core/config/model_test.go

@@ -8,14 +8,108 @@ import (
 	. "github.com/onsi/gomega"
 )
 
+// fixtures inlines what used to live under tests/models_fixtures/. Owning the
+// YAMLs here keeps the test self-contained: no env-var plumbing, no shared
+// directory the rest of the repo can stomp on.
+var fixtures = map[string]string{
+	"config.yaml": `- name: list1
+  parameters:
+    model: testmodel.ggml
+    top_p: 80
+    top_k: 0.9
+    temperature: 0.1
+  context_size: 200
+  stopwords:
+  - "HUMAN:"
+  - "### Response:"
+  roles:
+    user: "HUMAN:"
+    system: "GPT:"
+  template:
+    completion: completion
+    chat: ggml-gpt4all-j
+- name: list2
+  parameters:
+    top_p: 80
+    top_k: 0.9
+    temperature: 0.1
+    model: testmodel.ggml
+  context_size: 200
+  stopwords:
+  - "HUMAN:"
+  - "### Response:"
+  roles:
+    user: "HUMAN:"
+    system: "GPT:"
+  template:
+    completion: completion
+    chat: ggml-gpt4all-j
+`,
+	"embeddings.yaml": `name: text-embedding-ada-002
+embeddings: true
+parameters:
+  model: huggingface://hugging-quants/Llama-3.2-1B-Instruct-Q4_K_M-GGUF/llama-3.2-1b-instruct-q4_k_m.gguf
+`,
+	"grpc.yaml": `name: code-search-ada-code-001
+backend: sentencetransformers
+embeddings: true
+parameters:
+  model: all-MiniLM-L6-v2
+`,
+	"rwkv.yaml": `name: rwkv_test
+parameters:
+  model: huggingface://bartowski/rwkv-6-world-7b-GGUF/rwkv-6-world-7b-Q4_K_M.gguf
+  top_k: 80
+  temperature: 0.9
+  max_tokens: 4098
+  top_p: 0.8
+context_size: 4098
+
+roles:
+  user: "User: "
+  system: "System: "
+  assistant: "Assistant: "
+
+stopwords:
+- 'Assistant:'
+- '<s>'
+
+template:
+  chat: |
+    {{.Input}}
+    Assistant:
+  completion: |
+    {{.Input}}
+`,
+	"whisper.yaml": `name: whisper-1
+backend: whisper
+parameters:
+  model: whisper-en
+`,
+}
+
 var _ = Describe("Test cases for config related functions", func() {
 
 	var (
+		modelsPath string
 		configFile string
 	)
 
 	Context("Test Read configuration functions", func() {
-		configFile = os.Getenv("CONFIG_FILE")
+		BeforeEach(func() {
+			tmp, err := os.MkdirTemp("", "model-config-fixtures-")
+			Expect(err).ToNot(HaveOccurred())
+			modelsPath = tmp
+			for name, body := range fixtures {
+				Expect(os.WriteFile(filepath.Join(modelsPath, name), []byte(body), 0644)).To(Succeed())
+			}
+			configFile = filepath.Join(modelsPath, "config.yaml")
+		})
+
+		AfterEach(func() {
+			Expect(os.RemoveAll(modelsPath)).To(Succeed())
+		})
+
 		It("Test readConfigFile", func() {
 			config, err := readModelConfigsFromFile(configFile)
 			Expect(err).To(BeNil())
@@ -27,8 +121,8 @@ var _ = Describe("Test cases for config related functions", func() {
 
 		It("Test LoadConfigs", func() {
 
-			bcl := NewModelConfigLoader(os.Getenv("MODELS_PATH"))
-			err := bcl.LoadModelConfigsFromPath(os.Getenv("MODELS_PATH"))
+			bcl := NewModelConfigLoader(modelsPath)
+			err := bcl.LoadModelConfigsFromPath(modelsPath)
 
 			Expect(err).To(BeNil())
 			configs := bcl.GetAllModelsConfigs()
@@ -52,8 +146,8 @@ var _ = Describe("Test cases for config related functions", func() {
 
 		It("Test new loadconfig", func() {
 
-			bcl := NewModelConfigLoader(os.Getenv("MODELS_PATH"))
-			err := bcl.LoadModelConfigsFromPath(os.Getenv("MODELS_PATH"))
+			bcl := NewModelConfigLoader(modelsPath)
+			err := bcl.LoadModelConfigsFromPath(modelsPath)
 			Expect(err).To(BeNil())
 			configs := bcl.GetAllModelsConfigs()
 			loadedModelNames := []string{}