diff --git a/dotenv/tests/test-child-dir.rs b/dotenv/tests/test-child-dir.rs
index 1db61e8d..1deddb8d 100644
--- a/dotenv/tests/test-child-dir.rs
+++ b/dotenv/tests/test-child-dir.rs
@@ -1,21 +1,22 @@
 mod common;
 
 use dotenvy::*;
-use std::{env, fs};
+use std::{env, error::Error, fs, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_child_dir() {
-    let dir = make_test_dotenv().unwrap();
+fn test_child_dir() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    fs::create_dir("child").unwrap();
+    fs::create_dir("child")?;
 
-    env::set_current_dir("child").unwrap();
+    env::set_current_dir("child")?;
 
-    dotenv().ok();
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    dotenv()?;
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-default-location.rs b/dotenv/tests/test-default-location.rs
index 65e35ffa..7941fe15 100644
--- a/dotenv/tests/test-default-location.rs
+++ b/dotenv/tests/test-default-location.rs
@@ -1,17 +1,19 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_default_location() {
-    let dir = make_test_dotenv().unwrap();
+fn test_default_location() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    dotenv().ok();
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    dotenv()?;
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-dotenv-iter.rs b/dotenv/tests/test-dotenv-iter.rs
index 49e5a4c1..a41fadd9 100644
--- a/dotenv/tests/test-dotenv-iter.rs
+++ b/dotenv/tests/test-dotenv-iter.rs
@@ -1,22 +1,21 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_dotenv_iter() {
-    let dir = make_test_dotenv().unwrap();
-
-    let iter = dotenv_iter().unwrap();
+fn test_dotenv_iter() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
+    let iter = dotenv_iter()?;
     assert!(env::var("TESTKEY").is_err());
 
-    iter.load().ok();
-
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    iter.load()?;
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-from-filename-iter.rs b/dotenv/tests/test-from-filename-iter.rs
index eaf42300..968480c4 100644
--- a/dotenv/tests/test-from-filename-iter.rs
+++ b/dotenv/tests/test-from-filename-iter.rs
@@ -1,22 +1,23 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_from_filename_iter() {
-    let dir = make_test_dotenv().unwrap();
+fn test_from_filename_iter() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    let iter = from_filename_iter(".env").unwrap();
+    let iter = from_filename_iter(".env")?;
 
     assert!(env::var("TESTKEY").is_err());
 
-    iter.load().ok();
+    iter.load()?;
 
     assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-from-filename.rs b/dotenv/tests/test-from-filename.rs
index 1be87b00..75145eae 100644
--- a/dotenv/tests/test-from-filename.rs
+++ b/dotenv/tests/test-from-filename.rs
@@ -1,18 +1,19 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_from_filename() {
-    let dir = make_test_dotenv().unwrap();
+fn test_from_filename() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    from_filename(".env").ok();
+    from_filename(".env")?;
 
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-from-path-iter.rs b/dotenv/tests/test-from-path-iter.rs
index 048654ec..211cd863 100644
--- a/dotenv/tests/test-from-path-iter.rs
+++ b/dotenv/tests/test-from-path-iter.rs
@@ -1,25 +1,26 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_from_path_iter() {
-    let dir = make_test_dotenv().unwrap();
+fn test_from_path_iter() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    let mut path = env::current_dir().unwrap();
+    let mut path = env::current_dir()?;
     path.push(".env");
 
-    let iter = from_path_iter(&path).unwrap();
+    let iter = from_path_iter(&path)?;
 
     assert!(env::var("TESTKEY").is_err());
 
-    iter.load().ok();
+    iter.load()?;
 
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-from-path.rs b/dotenv/tests/test-from-path.rs
index 4354fc53..f7731666 100644
--- a/dotenv/tests/test-from-path.rs
+++ b/dotenv/tests/test-from-path.rs
@@ -1,21 +1,21 @@
 mod common;
 
-use dotenvy::*;
-use std::env;
-
 use crate::common::*;
+use dotenvy::*;
+use std::{env, error::Error, result::Result};
 
 #[test]
-fn test_from_path() {
-    let dir = make_test_dotenv().unwrap();
+fn test_from_path() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    let mut path = env::current_dir().unwrap();
+    let mut path = env::current_dir()?;
     path.push(".env");
 
-    from_path(&path).ok();
+    from_path(&path)?;
 
-    assert_eq!(env::var("TESTKEY").unwrap(), "test_val");
+    assert_eq!(env::var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-multiline.rs b/dotenv/tests/test-multiline.rs
index 35020c20..83776f40 100644
--- a/dotenv/tests/test-multiline.rs
+++ b/dotenv/tests/test-multiline.rs
@@ -2,10 +2,10 @@ mod common;
 
 use crate::common::*;
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 #[test]
-fn test_multiline() {
+fn test_multiline() -> Result<(), Box<dyn Error>> {
     let value = "-----BEGIN PRIVATE KEY-----\n-----END PRIVATE KEY-----\\n\\\"QUOTED\\\"";
     let weak = "-----BEGIN PRIVATE KEY-----\n-----END PRIVATE KEY-----\n\"QUOTED\"";
     let dir = tempdir_with_dotenv(&format!(
@@ -21,26 +21,26 @@ WEAK="{}"
 STRONG='{}'
 "#,
         value, value
-    ))
-    .unwrap();
+    ))?;
 
-    dotenv().ok();
-    assert_eq!(var("KEY").unwrap(), r#"my cool value"#);
+    dotenv()?;
+    assert_eq!(var("KEY")?, r#"my cool value"#);
     assert_eq!(
-        var("KEY3").unwrap(),
+        var("KEY3")?,
         r#"awesome "stuff"
 more
 on other
 lines"#
     );
     assert_eq!(
-        var("KEY4").unwrap(),
+        var("KEY4")?,
         r#"hello 'world
 good ' 'morning"#
     );
-    assert_eq!(var("WEAK").unwrap(), weak);
-    assert_eq!(var("STRONG").unwrap(), value);
+    assert_eq!(var("WEAK")?, weak);
+    assert_eq!(var("STRONG")?, value);
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-var.rs b/dotenv/tests/test-var.rs
index a14a3a44..71cc13d9 100644
--- a/dotenv/tests/test-var.rs
+++ b/dotenv/tests/test-var.rs
@@ -1,17 +1,17 @@
 mod common;
 
-use std::env;
-
 use dotenvy::*;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_var() {
-    let dir = make_test_dotenv().unwrap();
+fn test_var() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
-    assert_eq!(var("TESTKEY").unwrap(), "test_val");
+    assert_eq!(var("TESTKEY")?, "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-variable-substitution.rs b/dotenv/tests/test-variable-substitution.rs
index 237825f2..ad481feb 100644
--- a/dotenv/tests/test-variable-substitution.rs
+++ b/dotenv/tests/test-variable-substitution.rs
@@ -1,12 +1,12 @@
 mod common;
 
 use dotenvy::*;
-use std::env;
+use std::{env, error::Error, result::Result};
 
 use crate::common::*;
 
 #[test]
-fn test_variable_substitutions() {
+fn test_variable_substitutions() -> Result<(), Box<dyn Error>> {
     std::env::set_var("KEY", "value");
     std::env::set_var("KEY1", "value1");
 
@@ -25,18 +25,14 @@ SUBSTITUTION_FOR_WEAK_QUOTES="{}"
 SUBSTITUTION_WITHOUT_QUOTES={}
 "#,
         common_string, common_string, common_string
-    ))
-    .unwrap();
+    ))?;
 
-    assert_eq!(var("KEY").unwrap(), "value");
-    assert_eq!(var("KEY1").unwrap(), "value1");
-    assert_eq!(var("KEY_U").unwrap(), "value+valueU");
+    assert_eq!(var("KEY")?, "value");
+    assert_eq!(var("KEY1")?, "value1");
+    assert_eq!(var("KEY_U")?, "value+valueU");
+    assert_eq!(var("SUBSTITUTION_FOR_STRONG_QUOTES")?, common_string);
     assert_eq!(
-        var("SUBSTITUTION_FOR_STRONG_QUOTES").unwrap(),
-        common_string
-    );
-    assert_eq!(
-        var("SUBSTITUTION_FOR_WEAK_QUOTES").unwrap(),
+        var("SUBSTITUTION_FOR_WEAK_QUOTES")?,
         [
             "",
             "value",
@@ -49,7 +45,7 @@ SUBSTITUTION_WITHOUT_QUOTES={}
         .join(">>")
     );
     assert_eq!(
-        var("SUBSTITUTION_WITHOUT_QUOTES").unwrap(),
+        var("SUBSTITUTION_WITHOUT_QUOTES")?,
         [
             "",
             "value",
@@ -62,6 +58,7 @@ SUBSTITUTION_WITHOUT_QUOTES={}
         .join(">>")
     );
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }
diff --git a/dotenv/tests/test-vars.rs b/dotenv/tests/test-vars.rs
index a5a781c9..4fb9c647 100644
--- a/dotenv/tests/test-vars.rs
+++ b/dotenv/tests/test-vars.rs
@@ -1,20 +1,20 @@
 mod common;
 
-use std::collections::HashMap;
-use std::env;
+use std::{collections::HashMap, env, error::Error, result::Result};
 
 use dotenvy::*;
 
 use crate::common::*;
 
 #[test]
-fn test_vars() {
-    let dir = make_test_dotenv().unwrap();
+fn test_vars() -> Result<(), Box<dyn Error>> {
+    let dir = make_test_dotenv()?;
 
     let vars: HashMap<String, String> = vars().collect();
 
     assert_eq!(vars["TESTKEY"], "test_val");
 
-    env::set_current_dir(dir.path().parent().unwrap()).unwrap();
-    dir.close().unwrap();
+    env::set_current_dir(dir.path().parent().unwrap())?;
+    dir.close()?;
+    Ok(())
 }