Increase test coverage.

src/error/mod.rs

@@ -366,3 +366,36 @@ impl std::error::Error for EvalexprError {}
 
 /// Standard result type used by this crate.
 pub type EvalexprResult<T> = Result<T, EvalexprError>;
+
+#[cfg(test)]
+mod tests {
+    use crate::{EvalexprError, Value, ValueType};
+
+    /// Tests whose only use is to bring test coverage of trivial lines up, like trivial constructors.
+    #[test]
+    fn trivial_coverage_tests() {
+        assert_eq!(
+            EvalexprError::type_error(Value::Int(3), vec![ValueType::String]),
+            EvalexprError::TypeError {
+                actual: Value::Int(3),
+                expected: vec![ValueType::String]
+            }
+        );
+        assert_eq!(
+            EvalexprError::expected_type(&Value::String("abc".to_string()), Value::Empty),
+            EvalexprError::expected_string(Value::Empty)
+        );
+        assert_eq!(
+            EvalexprError::expected_type(&Value::Boolean(false), Value::Empty),
+            EvalexprError::expected_boolean(Value::Empty)
+        );
+        assert_eq!(
+            EvalexprError::expected_type(&Value::Tuple(vec![]), Value::Empty),
+            EvalexprError::expected_tuple(Value::Empty)
+        );
+        assert_eq!(
+            EvalexprError::expected_type(&Value::Empty, Value::String("abc".to_string())),
+            EvalexprError::expected_empty(Value::String("abc".to_string()))
+        );
+    }
+}

tests/integration.rs

@@ -582,6 +582,7 @@ fn test_shortcut_functions() {
         eval_number("abc"),
         Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
     );
+    assert_eq!(eval_number_with_context("3.5", &context), Ok(3.5));
     assert_eq!(eval_number_with_context("3", &context), Ok(3.0));
     assert_eq!(
         eval_number_with_context("true", &context),
@@ -593,6 +594,7 @@ fn test_shortcut_functions() {
         eval_number_with_context("abc", &context),
         Err(EvalexprError::VariableIdentifierNotFound("abc".to_owned()))
     );
+    assert_eq!(eval_number_with_context_mut("3.5", &mut context), Ok(3.5));
     assert_eq!(eval_number_with_context_mut("3", &mut context), Ok(3.0));
     assert_eq!(
         eval_number_with_context_mut("true", &mut context),