tests

datafusion/common/src/error.rs

@@ -420,7 +420,7 @@ impl DataFusionError {
             .split("\n\nbacktrace: ")
             .collect::<Vec<&str>>()
             .first()
-            .unwrap_or_else(|| &"")
+            .unwrap_or(&"")
             .to_string()
     }
 
@@ -514,16 +514,15 @@ mod test {
     use arrow::error::ArrowError;
 
     #[test]
-    fn arrow_error_to_datafusion() {
+    fn datafusion_error_to_arrow() {
         let res = return_arrow_error().unwrap_err();
-        assert_eq!(
-            res.to_string(),
-            "External error: Error during planning: foo"
-        );
+        assert!(res
+            .to_string()
+            .starts_with("External error: Error during planning: foo"));
     }
 
     #[test]
-    fn datafusion_error_to_arrow() {
+    fn arrow_error_to_datafusion() {
         let res = return_datafusion_error().unwrap_err();
         assert_eq!(res.strip_backtrace(), "Arrow error: Schema error: bar");
     }
@@ -641,9 +640,7 @@ mod test {
         let e = e.find_root();
 
         // DataFusionError does not implement Eq, so we use a string comparison + some cheap "same variant" test instead
-        dbg!(e.to_string());
-        dbg!(exp.to_string());
-        assert_eq!(e.strip_backtrace(), exp.to_string());
+        assert_eq!(e.strip_backtrace(), exp.strip_backtrace());
         assert_eq!(std::mem::discriminant(e), std::mem::discriminant(&exp),)
     }
 }

datafusion/core/tests/dataframe/mod.rs

@@ -482,7 +482,7 @@ async fn sort_on_distinct_unprojected_columns() -> Result<()> {
         .distinct()?
         .sort(vec![Expr::Sort(Sort::new(Box::new(col("b")), false, true))])
         .unwrap_err();
-    assert_eq!(err.to_string(), "Error during planning: For SELECT DISTINCT, ORDER BY expressions b must appear in select list");
+    assert_eq!(err.strip_backtrace(), "Error during planning: For SELECT DISTINCT, ORDER BY expressions b must appear in select list");
     Ok(())
 }
 
@@ -501,7 +501,7 @@ async fn sort_on_ambiguous_column() -> Result<()> {
         .unwrap_err();
 
     let expected = "Schema error: Ambiguous reference to unqualified field b";
-    assert_eq!(err.to_string(), expected);
+    assert_eq!(err.strip_backtrace(), expected);
     Ok(())
 }
 
@@ -520,7 +520,7 @@ async fn group_by_ambiguous_column() -> Result<()> {
         .unwrap_err();
 
     let expected = "Schema error: Ambiguous reference to unqualified field b";
-    assert_eq!(err.to_string(), expected);
+    assert_eq!(err.strip_backtrace(), expected);
     Ok(())
 }
 
@@ -539,7 +539,7 @@ async fn filter_on_ambiguous_column() -> Result<()> {
         .unwrap_err();
 
     let expected = "Schema error: Ambiguous reference to unqualified field b";
-    assert_eq!(err.to_string(), expected);
+    assert_eq!(err.strip_backtrace(), expected);
     Ok(())
 }
 
@@ -558,7 +558,7 @@ async fn select_ambiguous_column() -> Result<()> {
         .unwrap_err();
 
     let expected = "Schema error: Ambiguous reference to unqualified field b";
-    assert_eq!(err.to_string(), expected);
+    assert_eq!(err.strip_backtrace(), expected);
     Ok(())
 }
 

datafusion/core/tests/sql/joins.rs

@@ -231,7 +231,7 @@ async fn join_change_in_planner_without_sort_not_allowed() -> Result<()> {
     match df.create_physical_plan().await {
         Ok(_) => panic!("Expecting error."),
         Err(e) => {
-            assert_eq!(e.to_string(), "PipelineChecker\ncaused by\nError during planning: Join operation cannot operate on a non-prunable stream without enabling the 'allow_symmetric_joins_without_pruning' configuration flag")
+            assert_eq!(e.strip_backtrace(), "PipelineChecker\ncaused by\nError during planning: Join operation cannot operate on a non-prunable stream without enabling the 'allow_symmetric_joins_without_pruning' configuration flag")
         }
     }
     Ok(())

datafusion/core/tests/sql/order.rs

@@ -70,7 +70,7 @@ async fn create_external_table_with_ddl_ordered_non_cols() -> Result<()> {
         Ok(_) => panic!("Expecting error."),
         Err(e) => {
             assert_eq!(
-                e.to_string(),
+                e.strip_backtrace(),
                 "Error during planning: Column a is not in schema"
             )
         }
@@ -85,7 +85,7 @@ async fn create_external_table_with_ddl_ordered_without_schema() -> Result<()> {
     match ctx.state().create_logical_plan(sql).await {
         Ok(_) => panic!("Expecting error."),
         Err(e) => {
-            assert_eq!(e.to_string(), "Error during planning: Provide a schema before specifying the order while creating a table.")
+            assert_eq!(e.strip_backtrace(), "Error during planning: Provide a schema before specifying the order while creating a table.")
         }
     }
     Ok(())

datafusion/core/tests/sql/sql_api.rs

@@ -30,7 +30,7 @@ async fn unsupported_ddl_returns_error() {
     let sql = "create view test_view as select * from test";
     let df = ctx.sql_with_options(sql, options).await;
     assert_eq!(
-        df.unwrap_err().to_string(),
+        df.unwrap_err().strip_backtrace(),
         "Error during planning: DDL not supported: CreateView"
     );
 
@@ -49,7 +49,7 @@ async fn unsupported_dml_returns_error() {
     let sql = "insert into test values (1)";
     let df = ctx.sql_with_options(sql, options).await;
     assert_eq!(
-        df.unwrap_err().to_string(),
+        df.unwrap_err().strip_backtrace(),
         "Error during planning: DML not supported: Insert Into"
     );
 
@@ -70,7 +70,7 @@ async fn unsupported_copy_returns_error() {
     let sql = format!("copy (values(1)) to '{}'", tmpfile.to_string_lossy());
     let df = ctx.sql_with_options(&sql, options).await;
     assert_eq!(
-        df.unwrap_err().to_string(),
+        df.unwrap_err().strip_backtrace(),
         "Error during planning: DML not supported: COPY"
     );
 
@@ -88,7 +88,7 @@ async fn unsupported_statement_returns_error() {
     let sql = "set datafusion.execution.batch_size = 5";
     let df = ctx.sql_with_options(sql, options).await;
     assert_eq!(
-        df.unwrap_err().to_string(),
+        df.unwrap_err().strip_backtrace(),
         "Error during planning: Statement not supported: SetVariable"
     );
 
@@ -110,7 +110,7 @@ async fn ddl_can_not_be_planned_by_session_state() {
     let plan = state.create_logical_plan(sql).await.unwrap();
     let physical_plan = state.create_physical_plan(&plan).await;
     assert_eq!(
-        physical_plan.unwrap_err().to_string(),
+        physical_plan.unwrap_err().strip_backtrace(),
         "This feature is not implemented: Unsupported logical plan: DropTable"
     );
 }

datafusion/core/tests/sql/timestamp.rs

@@ -795,7 +795,7 @@ async fn test_cast_to_time_with_time_zone_should_not_work() -> Result<()> {
     let results = plan_and_collect(&ctx, sql).await.unwrap_err();
 
     assert_eq!(
-        results.to_string(),
+        results.strip_backtrace(),
         "This feature is not implemented: Unsupported SQL type Time(None, WithTimeZone)"
     );
 
@@ -828,7 +828,7 @@ async fn test_cast_to_timetz_should_not_work() -> Result<()> {
     let results = plan_and_collect(&ctx, sql).await.unwrap_err();
 
     assert_eq!(
-        results.to_string(),
+        results.strip_backtrace(),
         "This feature is not implemented: Unsupported SQL type Time(None, Tz)"
     );
     Ok(())

datafusion/execution/src/disk_manager.rs

@@ -220,7 +220,7 @@ mod tests {
         let manager = DiskManager::try_new(config).unwrap();
         assert!(!manager.tmp_files_enabled());
         assert_eq!(
-            manager.create_tmp_file("Testing").unwrap_err().to_string(),
+            manager.create_tmp_file("Testing").unwrap_err().strip_backtrace(),
             "Resources exhausted: Memory Exhausted while Testing (DiskManager is disabled)",
         )
     }

datafusion/execution/src/memory_pool/pool.rs

@@ -261,10 +261,10 @@ mod tests {
 
         assert_eq!(pool.reserved(), 4000);
 
-        let err = r2.try_grow(1).unwrap_err().to_string();
+        let err = r2.try_grow(1).unwrap_err().strip_backtrace();
         assert_eq!(err, "Resources exhausted: Failed to allocate additional 1 bytes for r2 with 2000 bytes already allocated - maximum available is 0");
 
-        let err = r2.try_grow(1).unwrap_err().to_string();
+        let err = r2.try_grow(1).unwrap_err().strip_backtrace();
         assert_eq!(err, "Resources exhausted: Failed to allocate additional 1 bytes for r2 with 2000 bytes already allocated - maximum available is 0");
 
         r1.shrink(1990);
@@ -289,12 +289,12 @@ mod tests {
             .with_can_spill(true)
             .register(&pool);
 
-        let err = r3.try_grow(70).unwrap_err().to_string();
+        let err = r3.try_grow(70).unwrap_err().strip_backtrace();
         assert_eq!(err, "Resources exhausted: Failed to allocate additional 70 bytes for r3 with 0 bytes already allocated - maximum available is 40");
 
         //Shrinking r2 to zero doesn't allow a3 to allocate more than 45
         r2.free();
-        let err = r3.try_grow(70).unwrap_err().to_string();
+        let err = r3.try_grow(70).unwrap_err().strip_backtrace();
         assert_eq!(err, "Resources exhausted: Failed to allocate additional 70 bytes for r3 with 0 bytes already allocated - maximum available is 40");
 
         // But dropping r2 does
@@ -307,7 +307,7 @@ mod tests {
         assert_eq!(pool.reserved(), 80);
 
         let mut r4 = MemoryConsumer::new("s4").register(&pool);
-        let err = r4.try_grow(30).unwrap_err().to_string();
+        let err = r4.try_grow(30).unwrap_err().strip_backtrace();
         assert_eq!(err, "Resources exhausted: Failed to allocate additional 30 bytes for s4 with 0 bytes already allocated - maximum available is 20");
     }
 }

datafusion/execution/src/object_store.rs

@@ -234,20 +234,20 @@ mod tests {
         assert_eq!(url.as_str(), "s3://username:password@host:123/");
 
         let err = ObjectStoreUrl::parse("s3://bucket:invalid").unwrap_err();
-        assert_eq!(err.to_string(), "External error: invalid port number");
+        assert_eq!(err.strip_backtrace(), "External error: invalid port number");
 
         let err = ObjectStoreUrl::parse("s3://bucket?").unwrap_err();
-        assert_eq!(err.to_string(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: ?");
+        assert_eq!(err.strip_backtrace(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: ?");
 
         let err = ObjectStoreUrl::parse("s3://bucket?foo=bar").unwrap_err();
-        assert_eq!(err.to_string(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: ?foo=bar");
+        assert_eq!(err.strip_backtrace(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: ?foo=bar");
 
         let err = ObjectStoreUrl::parse("s3://host:123/foo").unwrap_err();
-        assert_eq!(err.to_string(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: /foo");
+        assert_eq!(err.strip_backtrace(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: /foo");
 
         let err =
             ObjectStoreUrl::parse("s3://username:password@host:123/foo").unwrap_err();
-        assert_eq!(err.to_string(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: /foo");
+        assert_eq!(err.strip_backtrace(), "Execution error: ObjectStoreUrl must only contain scheme and authority, got: /foo");
     }
 
     #[test]

datafusion/expr/src/expr_rewriter/mod.rs

@@ -374,7 +374,7 @@ mod test {
         let error =
             normalize_col_with_schemas_and_ambiguity_check(expr, &[&schemas], &[])
                 .unwrap_err()
-                .to_string();
+                .strip_backtrace();
         assert_eq!(
             error,
             r#"Schema error: No field named b. Valid fields are "tableA".a."#

datafusion/expr/src/logical_plan/builder.rs

@@ -1522,7 +1522,7 @@ mod tests {
         let err =
             LogicalPlanBuilder::scan("", table_source(&schema), projection).unwrap_err();
         assert_eq!(
-            err.to_string(),
+            err.strip_backtrace(),
             "Error during planning: table_name cannot be empty"
         );
     }
@@ -1651,8 +1651,8 @@ mod tests {
         let err_msg1 = plan1.clone().union(plan2.clone().build()?).unwrap_err();
         let err_msg2 = plan1.union_distinct(plan2.build()?).unwrap_err();
 
-        assert_eq!(err_msg1.to_string(), expected);
-        assert_eq!(err_msg2.to_string(), expected);
+        assert_eq!(err_msg1.strip_backtrace(), expected);
+        assert_eq!(err_msg2.strip_backtrace(), expected);
 
         Ok(())
     }
@@ -1876,7 +1876,7 @@ mod tests {
             LogicalPlanBuilder::intersect(plan1.build()?, plan2.build()?, true)
                 .unwrap_err();
 
-        assert_eq!(err_msg1.to_string(), expected);
+        assert_eq!(err_msg1.strip_backtrace(), expected);
 
         Ok(())
     }

datafusion/expr/src/logical_plan/plan.rs

@@ -2272,7 +2272,7 @@ digraph {
             })),
             empty_schema,
         );
-        assert_eq!("Error during planning: Projection has mismatch between number of expressions (1) and number of fields in schema (0)", format!("{}", p.err().unwrap()));
+        assert_eq!(p.err().unwrap().strip_backtrace(), "Error during planning: Projection has mismatch between number of expressions (1) and number of fields in schema (0)");
         Ok(())
     }
 

datafusion/expr/src/type_coercion/aggregates.rs

@@ -577,7 +577,7 @@ mod tests {
         let input_types = vec![DataType::Int64, DataType::Int32];
         let signature = fun.signature();
         let result = coerce_types(&fun, &input_types, &signature);
-        assert_eq!("Error during planning: The function Min expects 1 arguments, but 2 were provided", result.unwrap_err().to_string());
+        assert_eq!("Error during planning: The function Min expects 1 arguments, but 2 were provided", result.unwrap_err().strip_backtrace());
 
         // test input args is invalid data type for sum or avg
         let fun = AggregateFunction::Sum;
@@ -586,14 +586,14 @@ mod tests {
         let result = coerce_types(&fun, &input_types, &signature);
         assert_eq!(
             "Error during planning: The function Sum does not support inputs of type Utf8.",
-            result.unwrap_err().to_string()
+            result.unwrap_err().strip_backtrace()
         );
         let fun = AggregateFunction::Avg;
         let signature = fun.signature();
         let result = coerce_types(&fun, &input_types, &signature);
         assert_eq!(
             "Error during planning: The function Avg does not support inputs of type Utf8.",
-            result.unwrap_err().to_string()
+            result.unwrap_err().strip_backtrace()
         );
 
         // test count, array_agg, approx_distinct, min, max.

datafusion/expr/src/window_frame.rs

@@ -332,7 +332,7 @@ mod tests {
         };
         let err = WindowFrame::try_from(window_frame).unwrap_err();
         assert_eq!(
-            err.to_string(),
+            err.strip_backtrace(),
             "Error during planning: Invalid window frame: start bound cannot be UNBOUNDED FOLLOWING".to_owned()
         );
 
@@ -343,7 +343,7 @@ mod tests {
         };
         let err = WindowFrame::try_from(window_frame).unwrap_err();
         assert_eq!(
-            err.to_string(),
+            err.strip_backtrace(),
             "Error during planning: Invalid window frame: end bound cannot be UNBOUNDED PRECEDING".to_owned()
         );
 

datafusion/optimizer/src/analyzer/type_coercion.rs

@@ -1457,7 +1457,7 @@ mod test {
         };
         let err = coerce_case_expression(case, &schema).unwrap_err();
         assert_eq!(
-            err.to_string(),
+            err.strip_backtrace(),
             "Error during planning: \
             Failed to coerce case (Interval(MonthDayNano)) and \
             when ([Float32, Binary, Utf8]) to common types in \
@@ -1475,7 +1475,7 @@ mod test {
         };
         let err = coerce_case_expression(case, &schema).unwrap_err();
         assert_eq!(
-            err.to_string(),
+            err.strip_backtrace(),
             "Error during planning: \
             Failed to coerce then ([Date32, Float32, Binary]) and \
             else (Some(Timestamp(Nanosecond, None))) to common types \

datafusion/optimizer/src/optimizer.rs

@@ -483,7 +483,7 @@ mod tests {
         assert_eq!(
             "Optimizer rule 'bad rule' failed\ncaused by\n\
             Error during planning: rule failed",
-            err.to_string()
+            err.strip_backtrace()
         );
     }
 
@@ -507,7 +507,7 @@ mod tests {
              metadata: {}, functional_dependencies: FunctionalDependencies { deps: [] } }. \
              This was likely caused by a bug in DataFusion's code \
              and we would welcome that you file an bug report in our issue tracker",
-            err.to_string()
+            err.strip_backtrace()
         );
     }
 

datafusion/physical-expr/src/aggregate/min_max.rs

@@ -1152,7 +1152,10 @@ mod tests {
             "MIN/MAX is not expected to receive scalars of incompatible types {:?}",
             (Decimal128(Some(123), 10, 2), Decimal128(Some(124), 10, 3))
         ));
-        assert_eq!(expect.to_string(), result.unwrap_err().to_string());
+        assert_eq!(
+            expect.strip_backtrace(),
+            result.unwrap_err().strip_backtrace()
+        );
 
         // max batch
         let array: ArrayRef = Arc::new(

datafusion/physical-expr/src/array_expressions.rs

@@ -3213,7 +3213,7 @@ mod tests {
 
         let array = array_append(&args);
 
-        assert_eq!(array.unwrap_err().to_string(), "Error during planning: array_append received incompatible types: '[Int64, Utf8]'.");
+        assert_eq!(array.unwrap_err().strip_backtrace(), "Error during planning: array_append received incompatible types: '[Int64, Utf8]'.");
     }
 
     fn return_array() -> ColumnarValue {