diff --git a/R/utils.R b/R/utils.R
index 63a7366..0f676d6 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -72,7 +72,7 @@ resp_process <- function(resp, output = c("df", "jsonlist", "raw", "resp", "text
 
     # process non-stream response below
     if (output == "raw") {
-        return(httr2::resp_raw(resp))
+        return(rawToChar(resp$body))
     } else if (output == "jsonlist") {
         return(httr2::resp_body_json(resp))
     }
@@ -167,12 +167,11 @@ resp_process_stream <- function(resp, output) {
         if (output == "text") {
             return(paste0(df_response$response, collapse = ""))
         }
-    }  else if (grepl("api/chat", resp$url)) { # process chat endpoint
-        return(NULL)  # TODO fill in
+    } else if (grepl("api/chat", resp$url)) { # process chat endpoint
+        return(NULL) # TODO fill in
     } else if (grepl("api/tags", resp$url)) { # process tags endpoint {
-        return(NULL)  # TODO fill in
+        return(NULL) # TODO fill in
     }
-
 }
 
 
@@ -188,7 +187,7 @@ resp_process_stream <- function(resp, output) {
 #' @export
 #'
 #' @examples
-#' image_path <- file.path(system.file('extdata', package = "ollamar"), "image1.png")
+#' image_path <- file.path(system.file("extdata", package = "ollamar"), "image1.png")
 #' image_encode_base64(image_path)
 image_encode_base64 <- function(image_path) {
     if (!file.exists(image_path)) {
diff --git a/tests/testthat/test-test_generate.R b/tests/testthat/test-test_generate.R
new file mode 100644
index 0000000..cf2fa0a
--- /dev/null
+++ b/tests/testthat/test-test_generate.R
@@ -0,0 +1,62 @@
+library(testthat)
+library(ollamar)
+
+test_that("generate function works with different outputs and resp_process", {
+    skip_if_not(test_connection()$status_code == 200, "Ollama server not available")
+
+    # not streaming
+    expect_s3_class(generate("llama3", "The sky is..."), "httr2_response")
+    expect_s3_class(generate("llama3", "The sky is...", output = "resp"), "httr2_response")
+    expect_s3_class(generate("llama3", "The sky is...", output = "df"), "data.frame")
+    expect_type(generate("llama3", "The sky is...", output = "jsonlist"), "list")
+    expect_type(generate("llama3", "The sky is...", output = "text"), "character")
+    expect_type(generate("llama3", "The sky is...", output = "raw"), "character")
+
+    # streaming
+    expect_s3_class(generate("llama3", "The sky is...", stream = TRUE), "httr2_response")
+    expect_s3_class(generate("llama3", "The sky is...", stream = TRUE, output = "resp"), "httr2_response")
+    expect_s3_class(generate("llama3", "The sky is...", stream = TRUE, output = "df"), "data.frame")
+    expect_type(generate("llama3", "The sky is...", stream = TRUE, output = "jsonlist"), "list")
+    expect_type(generate("llama3", "The sky is...", stream = TRUE, output = "text"), "character")
+    expect_type(generate("llama3", "The sky is...", stream = TRUE, output = "raw"), "character")
+
+    ## resp_process
+    # not streaming
+    result <- generate("llama3", "The sky is...")
+    expect_s3_class(result, "httr2_response")
+    expect_s3_class(resp_process(result, "resp"), "httr2_response")
+    expect_s3_class(resp_process(result, "df"), "data.frame")
+    expect_type(resp_process(result, "jsonlist"), "list")
+    expect_type(resp_process(result, "text"), "character")
+    expect_type(resp_process(result, "raw"), "character")
+
+    # streaming
+    result <- generate("llama3", "The sky is...", stream = TRUE)
+    expect_s3_class(result, "httr2_response")
+    expect_s3_class(resp_process(result, "resp"), "httr2_response")
+    expect_s3_class(resp_process(result, "df"), "data.frame")
+    expect_type(resp_process(result, "jsonlist"), "list")
+    expect_type(resp_process(result, "text"), "character")
+    expect_type(resp_process(result, "raw"), "character")
+})
+
+test_that("generate function works with additional options", {
+    skip_if_not(test_connection()$status_code == 200, "Ollama server not available")
+
+    expect_s3_class(generate("llama3", "The sky is...", num_predict = 1, temperature = 0), "httr2_response")
+    expect_error(generate("llama3", "The sky is...", abc = 1, sdf = 2))
+})
+
+
+test_that("generate function works with images", {
+    skip_if_not(test_connection()$status_code == 200, "Ollama server not available")
+
+    image_path <- file.path(system.file("extdata", package = "ollamar"), "image1.png")
+
+    result <- generate("benzie/llava-phi-3:latest", "What is in the image?", images = image_path)
+    expect_s3_class(result, "httr2_response")
+    expect_type(resp_process(result, "text"), "character")
+    expect_match(tolower(resp_process(result, "text")), "watermelon")
+
+    expect_error(generate("benzie/llava-phi-3:latest", "What is in the image?", images = "incorrect_path.png"))
+})