Improve test names
diff --git a/codespan-reporting/tests/snapshots/term__spacing__tab_width_compact_no_color.snap b/codespan-reporting/tests/snapshots/term__spacing__compact.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__spacing__tab_width_compact_no_color.snap
rename to codespan-reporting/tests/snapshots/term__spacing__compact.snap
diff --git a/codespan-reporting/tests/snapshots/term__spacing__tab_width_compressed_no_color.snap b/codespan-reporting/tests/snapshots/term__spacing__compressed.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__spacing__tab_width_compressed_no_color.snap
rename to codespan-reporting/tests/snapshots/term__spacing__compressed.snap
diff --git a/codespan-reporting/tests/snapshots/term__spacing__tab_width_cozy_no_color.snap b/codespan-reporting/tests/snapshots/term__spacing__cozy.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__spacing__tab_width_cozy_no_color.snap
rename to codespan-reporting/tests/snapshots/term__spacing__cozy.snap
diff --git a/codespan-reporting/tests/snapshots/term__spacing__tab_width_cozy_no_color.snap b/codespan-reporting/tests/snapshots/term__spacing__default.snap
similarity index 100%
copy from codespan-reporting/tests/snapshots/term__spacing__tab_width_cozy_no_color.snap
copy to codespan-reporting/tests/snapshots/term__spacing__default.snap
diff --git a/codespan-reporting/tests/snapshots/term__spacing__tab_width_default_no_color.snap b/codespan-reporting/tests/snapshots/term__spacing__tab_width_default_no_color.snap
deleted file mode 100644
index 6632020..0000000
--- a/codespan-reporting/tests/snapshots/term__spacing__tab_width_default_no_color.snap
+++ /dev/null
@@ -1,29 +0,0 @@
----
-source: codespan-reporting/tests/term.rs
-expression: TEST_DATA.emit_no_color(&config)
----
-error: unknown builtin: `NATRAL`
-
-   ┌─ Data/Nat.fun:7:13
-   │
- 7 │ {-# BUILTIN NATRAL Nat #-}
-   │             ^^^^^^ unknown builtin
-   │
-   = there is a builtin with a similar name: `NATURAL`
-
-error[E0001]: unexpected type in application of `_+_`
-
-    ┌─ Test.fun:4:11
-    │
-  4 │ _ = 123 + "hello"
-    │           ^^^^^^^ expected `Nat`, found `String`
-    │
-    ┌─ Data/Nat.fun:11:1
-    │
- 11 │ _+_ : Nat → Nat → Nat
-    │ --------------------- based on the definition of `_+_`
-    │
-    = expected type `Nat`
-         found type `String`
-
-
diff --git a/codespan-reporting/tests/snapshots/term__tabbed__tab_width_default_no_color.snap b/codespan-reporting/tests/snapshots/term__tab_width__default.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__tabbed__tab_width_default_no_color.snap
rename to codespan-reporting/tests/snapshots/term__tab_width__default.snap
diff --git a/codespan-reporting/tests/snapshots/term__tabbed__tab_width_3_no_color.snap b/codespan-reporting/tests/snapshots/term__tab_width__value_3.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__tabbed__tab_width_3_no_color.snap
rename to codespan-reporting/tests/snapshots/term__tab_width__value_3.snap
diff --git a/codespan-reporting/tests/snapshots/term__tabbed__tab_width_6_no_color.snap b/codespan-reporting/tests/snapshots/term__tab_width__value_6.snap
similarity index 100%
rename from codespan-reporting/tests/snapshots/term__tabbed__tab_width_6_no_color.snap
rename to codespan-reporting/tests/snapshots/term__tab_width__value_6.snap
diff --git a/codespan-reporting/tests/term.rs b/codespan-reporting/tests/term.rs
index 9e9cb9b..058b609 100644
--- a/codespan-reporting/tests/term.rs
+++ b/codespan-reporting/tests/term.rs
@@ -418,7 +418,7 @@
     test_emit!(short_no_color);
 }
 
-mod tabbed {
+mod tab_width {
     use super::*;
 
     lazy_static::lazy_static! {
@@ -454,14 +454,14 @@
     }
 
     #[test]
-    fn tab_width_default_no_color() {
+    fn default() {
         let config = TEST_CONFIG.clone();
 
         insta::assert_snapshot!(TEST_DATA.emit_no_color(&config));
     }
 
     #[test]
-    fn tab_width_3_no_color() {
+    fn value_3() {
         let config = Config {
             tab_width: 3,
             ..TEST_CONFIG.clone()
@@ -471,7 +471,7 @@
     }
 
     #[test]
-    fn tab_width_6_no_color() {
+    fn value_6() {
         let config = Config {
             tab_width: 6,
             ..TEST_CONFIG.clone()
@@ -555,14 +555,14 @@
     }
 
     #[test]
-    fn tab_width_default_no_color() {
+    fn default() {
         let config = TEST_CONFIG.clone();
 
         insta::assert_snapshot!(TEST_DATA.emit_no_color(&config));
     }
 
     #[test]
-    fn tab_width_cozy_no_color() {
+    fn cozy() {
         let config = Config {
             spacing: Spacing::Cozy,
             ..TEST_CONFIG.clone()
@@ -572,7 +572,7 @@
     }
 
     #[test]
-    fn tab_width_compact_no_color() {
+    fn compact() {
         let config = Config {
             spacing: Spacing::Compact,
             ..TEST_CONFIG.clone()
@@ -582,7 +582,7 @@
     }
 
     #[test]
-    fn tab_width_compressed_no_color() {
+    fn compressed() {
         let config = Config {
             spacing: Spacing::Compressed,
             ..TEST_CONFIG.clone()