Dataframe v2: extensive test suite and associated bug fixes for all e…

…xisting features (rerun-io#7587)

This implements an extensive test suite that makes sure that all
existing features of the dataframe API A) have their behavior fully
specified in code (so we can at list agree on how things work _right
now_) and B) that said behavior does in fact.. behave.

This unsurprisingly revealed many bugs, which this PR fixes.

The currently existing features are:
* filtered_index
* filtered_index_range
* view_contents
* selection

Tests will later be added for the following, yet to be implemented
features:
* filtered_index_values
* sampled_index_values
* filtered_point_of_view
* sparse_fill_strategy

Cargo.lock

@@ -5061,7 +5061,9 @@ dependencies = [
  "re_types",
  "re_types_core",
  "seq-macro",
+ "similar-asserts",
  "thiserror",
+ "unindent",
 ]
 
 [[package]]

crates/store/re_chunk/src/transport.rs

@@ -30,7 +30,7 @@ use crate::{Chunk, ChunkError, ChunkId, ChunkResult, RowId, TimeColumn};
 /// This means we have to be very careful when checking the validity of the data: slipping corrupt
 /// data into the store could silently break all the index search logic (e.g. think of a chunk
 /// claiming to be sorted while it is in fact not).
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct TransportChunk {
     /// The schema of the dataframe, and all chunk-level and field-level metadata.
     ///

crates/store/re_dataframe2/Cargo.toml

@@ -50,3 +50,6 @@ thiserror.workspace = true
 
 [dev-dependencies]
 re_types.workspace = true
+
+similar-asserts.workspace = true
+unindent.workspace = true